Wednesday, 7 April 2010

MediShield Upgrade Comparison


Ward Selection for MediShield

UPDATE (31 Jan 2014): I have been very busy recently due to work commitment. Surprisingly, this file has more than 7,000 over download. I hope to update this in view of the recent talk about the pioneer package. Stay tuned.... and thanks again for your support.


UPDATE (18 Jul 2011): Thanks for your support. Near to 700 have downloaded and use this excel file to better their health plan. I welcome any constructive suggestions to better this file for future reference.

After posting the excel file (version 11), let's see what MediShield covers.
We shall compare the following scenarios below. You can punch in the data in the excel file to derive the same results.
Scenario
1
2
3
4
5
Room and Board (R&B)
24,200
24,200
24,200
24200
5,200
ICU
1,800
1,800
1,800
1800
0
Day Surgery
728
728
728
728
0
Implant
0
0
0
0
0
Days in R&B
52
52
52
52
5
Days in ICU
2
2
2
2
0
Total Hospital Bill
26728
26728
26728
6300
5200
Ward Chosen
C
B2
B1
A
B2
Age
50
50
50
50
50
Insurance pays
21885.2 or 81.88%
21735.2 or 81.32%
8336 or 31.19%
6914 or 25.87%
600 or 11.54%
You pays
4842.8
4992.8
18392
19814
4600


If you have only MediShield, staying in Ward B2 or C has its merits. This is an ideal case to show CPF MediShield can pays for 80% as intended.
Choosing Ward B1 or A will dramatically blow up your medical expenses as illustrated in scenario 3 and 4 respectively.
But wait a minute, how many of us spend 52 days in hospital?
A more realistic case is Scenario 5 whereby minor accident happens to us. Your feet swells without your permission and you stay only 5 days in hospital and the bill is only S$5,200 with no surgical operations. Now, you will be paying S$4,600 or 89% of the bill under MediShield. If luck is not on your side and you visit a hospital every 5 years, your MediSave savings will be easily depleted before you reach 80. When this happens, many suddenly realized that MediShield is insufficient and need a private plan to fill in the gap. Since private insurance excludes previous medical conditions, you will not be paid for heart related conditions if you have heart problem before you buy the private policy. Therefore it is imperative to buy the insurance before you develop any illnesses since most are guaranteed for renewal without questions. This is especially true because MediShield expects you to die before 86 as you have ZERO coverage when you are 86. Else, it ensures you die poor if you live beyond 86 because you will pay 100% of the medical bills.

An Ideal Private Insurance Plan

From my earlier blog, statistics showed that private insurance companies pay S$22 out of S$100 premium collected while CPF MediShield pays S$53 out of S$100. Claiming insurance may be one of the factors as there are many limitations and constraints especially the micro clauses in the contract dealing with historical medical conditions. But since MediShield has its weaknesses, you would like to maximize your money on a policy that pays the most and covers better than MediShield.
For full coverage (ie. zero payment), the premiums are expensive especially when you grow older. We have to access if we are able to afford the premium because it costs only $42/year when you are young but $7000/year if you are old. Without income after retirement, can you afford to pay the premium at old age? Many jump into buying policies that benefit them in the short term and forget that the premiums are much higher when they are old.
So the criteria for private Insurance are:
  1. It should be better than MediShield;
  2. It should pay most of the medical bills;
  3. In case of hospitalization, the insurance payout should be substantially higher against the premiums paid over the years (remember ROI?); and
  4. The policy should be affordable till old age.

Case 1 – Long Stay in hospital

Using the same scenario as above, MediShield (Ward C) shall be the benchmark.
Scenario
CPF MediShield
GE SupremeShield B Plus
GE SupremeShield B Plus
Room and Board (R&B)
24,200
24,200
24,200
ICU
1,800
1,800
1,800
Day Surgery
728
728
728
Implant
0
0
0
Days in R&B
52
52
52
Days in ICU
2
2
2
Total Hospital Bill
26728
26728
26728
Ward Chosen
C
C
B1
Age
50
50
50
Deductible
1000
1000
2000
Co-Insurance
3042.8
2572.8
2472.8
Insurance pays
21885.2 or 81.88%
23155.2 or 86.63%
22255.2 or 83.27%
You pays
4842.8
3572.8
4472.8
Years policy is valid
10
10
10
Claims/Premiums
18.33
9.82
9.44


With Great Eastern Supreme Shield B Plus, it covers more for the same Ward C plan. Even if you upgrade to Ward B1, the medical bill foot by you is still lower than CPF MediShield.
If the policy is enforced for the last 10 years (or you have paid 10 years of premiums), the Claims/Premiums ratio will reveal the value of this policy. With lower premium and less coverage, MediShield has a score of 18.33. It implies that the medical claim covers the insurance premiums for the last 18.33 years. For GE Supreme Shield B Plus, both are near to 10 so it implies GE earns little from you.
We conclude that private insurance has its merits for long term hospital stay as it provides better coverage than MediShield. However, we need to compare the various plans to suit personal needs. You can now do so with the excel file.

Case 2 – Short stay in hospital

As illustrated above, MediShield is weak in pure R&B charges. Let's see how private insurances fare.
Scenario
CPF MediShield
AIA HealthShield Gold Elite
Aviva MyShield Plan 3
Room and Board (R&B)
5,200
5,200
5,200
ICU
0
0
0
Day Surgery
0
0
0
Implant
0
0
0
Days in R&B
5
5
5
Days in ICU
0
0
0
Total Hospital Bill
5200
5200
5200
Ward Chosen
B2
B2
B2
Age
50
50
50
Deductible
1500
1500
1500
Co-Insurance
150
370
370
Insurance pays
600 or 11.54%
3330 or 64.04%
3330 or 64.04%
You pays
4600
1870
1870
Years policy is valid
10
10
10
Claims/Premiums
0.5
0.75
1.53


Both AIA HealthShield Gold Elite and Aviva MyShield Plan 3 offer to pay 64.04% of the bill compared to MediShield's 11.54%. Now, with the Claims/Premium ratio, ceteris paribus, we see that Aviva MyShield Plan 3 is better than AIA HealthShield Gold Elite due to lower premiums.

Case 3 – Typical Surgical mid-term stay

Let's consider a case study of a mid-term stay with coronary artery bypass graft surgery (Example from Prudential website).
Scenario
CPF MediShield
Prudential PRUshield A+
NTUC Enhanced IncomeShield Basic + ASSIST rider
Room and Board (R&B)
5870
5870
5870
ICU
1630
1630
1630
Day Surgery
9000
9000
9000
Implant
2400
2400
2400
Days in R&B
7
7
7
Days in ICU
2
2
2
Total Hospital Bill
18900
18900
18900
Ward Chosen
B2
B2
B2
Age
52
52
52
Deductible
1500
1500
1500
Co-Insurance
369.75
1740
1690
Insurance pays
5726 or 30.3%
15660 or 82.86%
17010 or 90%
You pays
13174
3240
1890
Years policy is valid
10
10
10
Claims/Premiums
10.86
4.56
4.17


Private insurances always place their example to their advantage. In this example, MediShield's weakness is exposed as you have to pay 70% of the medical bill. Though the Claims/Premiums ratio is high, forking out $13,174 may wipe out most of your MediSave account. Comparing with Prudential PRUshield A+ and NTUC Enhanced IncomeShield Basic + Assist Rider, both private plans cover most of the costs with the NTUC paying the most out of the 3 plans. However, its premium is also higher as compared with PRUshield.

Benchmarks

To compare policies, benchmarks are introduced. Below are the descriptions:
  1. Percentage of bill paid by insurance measures the amount of medical bill paid by the insurance company over the total medical bills. (Higher is better)
  2. Claims/Premium paid measures the insurance payout over the premium you paid over the years. (Higher is better)
  3. Future Premiums (to be paid till your death) considers your ability to service your premium till you die. (Lower is better)
These factors are given a certain weight to produce the ranking for your consideration.
I hope the excel file will help you get the best plan for your needs.

Saturday, 3 April 2010

What plan should I upgrade from CPF MediShield?


Medical need is your top priority in insurance

We do not know when accident will happen but it is happening every day. If health and safety are your top concerns, medical care should be your top priority in insurance. The reason is simple: you may not wish to knock someone but you cannot stop someone from bumping into you. Singapore government realized the needs for medical insurance for all Singaporeans and therefore MediShield is born. In 2009, CPF revamped MediShield to increase premium for better coverage. The revised Medishield aims to take care of as much as 80 percent of the big bills. Yet, 100,000 women are uninsured because they are housewives with no MediSave. So, is MediShield an effective medical care insurance for us?

Weaknesses of MediShield

From Dr Money website, we realized that Medishield is working harder as it is paying 53% of the premium collected while private insurance companies are paying only 22% of the premium collected. However, it is not an all-rounder. Below are some of its limitations:
  • Age insured is capped at 85. If you live beyond 85, you lose your "Shield";
  • MediShield only covers hospitalization/surgical/day surgery and approved outpatient treatments sought in MOH-accredited medical institutions in Singapore. Expenses incurred at overseas cannot be claimed;
  • MediShield pays PART OF THE BILLS at Class B2/C wards in restructured hospitals. If you choose to stay in Class A/B1 wards or private hospitals, you will rather die when you receive the bills. A shiny example is spelt out in MOH website whereby Medishield pays only S$1438 out of S$50,000; and
  • MediShield does not pay your deductible and co-insurance payments. The complex calculation of deductible and co-insurance draws more money from MediSave and less money is available for MediShield deduction. For long-term patients, they experienced rapid vaporization of their CPF MediSave account and when it is dry, there is no more payment available for future basic MediShield premiums.

Sourcing for alternatives from private insurance companies

In view of these issues, private insurance companies fill in the vacuum of providing the needful. They provide extensive coverage, overseas coverage, guaranteed lifetime policy renewal and even final expenses (how nice they put it for coffin money!). They offer riders for sophisticated customers who demanded ZERO-dollar upfront. However, the deductible and co-insurance are higher than MediShield which makes the MediSave pool dry up even faster in certain circumstances. The complexity of different plans further confuses the consumers as they cannot compare the plan effectively. Every financial agent is biased and only introduces plans whereby he/she maximize the commissions to reward the promotion effort. The consumers are suffering from this system as they may buy a plan which they cannot afford in the future. However, you can stay in Class B1/A wards or private hospital if you choose the right policy (So it is encouraging to die faster in a private hospital than to suffer MediSave deficit with a long-term illness!)

The need for a comparison table

A comparison table is needed to compare the plans available in the market and there must be indicators to see which plan is comparatively better. I limit the comparison to the next tier of upgrade to MediShield when full coverage (full payment of deductible and co-insurance) is not covered. More restrictions are set to simply the table as depicted below:
  • Limit for policy year and lifetime are adequately covered. According to the blog of Mr Tan Kin Lian (ex-CEO of NTUC Income): "Out of 2 million people who are insured for the past 10 years, nobody has ever accumulated a lifetime bill of more than $300,000. Most of the large bills are probably less than $100,000." Unlimited or half a million lifetime limit are just marketing gimmick to sign you up for the plan;
  • Out-patient medical bills are not included to simplify the table;
  • Riders are not included (except for NTUC PLUS/ASSIST for simple comparison); and
  • Specific benefits (eg. Free child coverage), relating to various private companies, are also excluded.

Benchmarks

To compare policies, benchmarks are introduced. Below are the descriptions:
  1. Percentage of bill paid by insurance measures the amount of medical bill paid by the insurance company over the total medical bills. (Higher is better)
  2. Claims/Premium paid measures the insurance payout over the premium you paid over the years. (Higher is better)
  3. Future Premiums (to be paid till your death) considers your ability to service your premium till you die. (Lower is better)
These factors are given a certain weight to produce the ranking for your consideration.
The file (version 1) can be downloaded HERE (outdated).
Update: Version 11 is available HERE. See some illustrations HERE.
Feel free to explore the possibilities and email me of any issues. The file will be constantly updated and I will provide some comparisons in the coming weeks when I am free. If you wish to inject constructive ideas, feel free to email me at sglongfeng@gmail.com. I hope it will assist in choosing the best plan for you.

Saturday, 6 March 2010

Should I convert from Post-paid to Pre-paid mobile plan?


Planning for your ideal mobile plan

Many retirees "inherited" the obsolete mobile phones from their children when they upgrade the phones. Since a mobile plan (with a SIM card) is needed to make the old phone come alive, they leave the decision of their mobile plans to their children. Most of their children chose post-paid plan with limited incoming voice calls with no data plan. However, most old folks are wary of making outgoing voice calls because they are not used to the phone and it is chargeable. For some old plans, they are paying more than S$60+ for 300 min outgoing minutes per month. Due to fierce competition over the years, new plans are more competitive at S$25+ for 100 min outgoing. However, many are ignorance of this option when their contract is due. The same applies for students in schools, polytechnics and universities, except their phones are normally smart phones with data plan.
The demand of pre-paid mobile plan is attractive to short-term tourists and our foreign "talents" (aka workers) who rarely use their phone and cannot get credit. The beauty of pre-paid plan lies in the absence of 2-year contract with the telco. This target segment is not demanding of voice mail, text or data plan since their phones are either low-end or obsolete models. So they are compromised to pay a higher price to use pre-paid services.
Stop, read paragraph 2 again. If you believe every word I wrote, then perhaps you need a paradigm shift. Ten years ago, paragraph 2 is politically correct but it is no longer true now. If 50% of Europe is using pre-paid plans, you are a true believer on the myths of using pre-paid plan. Let me tell you why.

Post-paid vs Pre-paid

If a picture paints a thousand words, I hope this table shed lights on the differences.
Post-Paid
Pre-Paid
Payment mode
After use
Before use
Monthly Bills
Yes
No
Subscription
Yes
No
Contract binding
2 years
None
Free phone bundle
Yes
None
Registration Charge
S$10.70
None
Free incoming voice calls
Yes
Depending on the plans
Free SMS
Yes
Depending on the plans
Free Caller ID
No
Yes
Free Voice Mail
No
Yes
Fee incoming calls
Yes
Depends

 

Yes. That's all for the differences. How about data plan, IDD calls, international roaming? Don't worry. Pre-paid plans cover them and sometimes offer more.
If you are using post-paid, there is no such thing as free outgoing voice call. It has been factored into your month free minutes. That's why you are paying more for 300 or 700 minutes. It is charged at SS$0.16/min if you exceed your allocated free minutes. Many customer service representatives will tell you to choose the highest minutes plan from your maximum usage. So you are choosing 100min/mth plan (S$16 value) if you are using 80min/mth and 300min/mth plan (S$54 value) when you are in fact using 101 min/mth.
Basically, prepaid plan is not restricted by the number of outgoing voice call minutes and number of SMSs. The catch is pay-as-you-use and in fact, more flexible than standard post-paid services. Therefore, get ready for the surprise if you are the frog still hiding in the well.

Pre-paid plans in the market

Being the largest mobile player in Singapore, SingTel has 4 different pre-paid offerings:
  • Hi!card (standard prepaid at 8 cents/min during Happy Hour) with top-up options of (15% bonus, S$28, S$30 and S$55)

  • Kababayan Card (calling Philippines at 7 cents/min )
  • simPATI kangen Card (calling Indonesia at 16-26 cents/min)
  • Sawadee Card (calling Thailand at 6 cents/min)
Since we are targeting at Singaporeans who are interested to convert from Post-paid to Pre-paid, cards and top-up options which are targeting for foreigners who wish to make IDD calls will be omitted in our discussion. Hence, we only consider the Hi!card and its top-up options.
Starhub has 2 basic plans – Green (Happy S$128 and Happy Star S$17) and MaxMobile for voice and data plan respectively. Top-up options are Happy (voice) and Happy Stars (data) prepaid. On and off, they introduce some perks to make their pre-paid cards more attractive. Since we are focusing only on voice plan, we shall take MaxMobile out of the equation.
M1 also has 2 pre-paid plans – M Super S$130 and SuperPac. The former targets standard users while SuperPac targets foreigners who live in a different time zone. We shall consider both plans with its top-up options.

Benchmark using a Post-paid plan

For low usage users, we need a benchmark for comparison so we take a standard 100min/mth plan with no data plan at a comparable value of S$25.68 (100 outgoing minutes and 500 SMSs). Over a period of 24 mths, a post-paid plan will cost a subscriber a total of S$616.32. Note that Post-paid plan can receive unlimited incoming call.
100min/mth
300min/mth
Free outgoing voice minutes
100
300
Free SMS
500
500
Cost for 1 month (S$)
25.68
48.15
Costs over 24 mths (S$)
616.32
1155.60

 

Case studies

For the Pre-paid plan, let make the following presumption for both groups of consumers:
Old folk
Night shift worker
Businessman
Duration of incoming calls a month (min)
50
75
150
Duration of outgoing calls a month (min)
50
75
100
Average call duration (min)
1
2
3
Calls made during peak period
80%
10%
60%
Calls made during non-peak period
20%
90%
40%
SMS per month
0
500
600

 

A run through the formula reveals the following:
Best plan
Old folks
Monthly bills (S$)
Night shift worker
Monthly bills (S$)
Businessman
Monthly bills (S$)
1
Singtel Hi!Card (S$55)
9.71
Singtel Hi!Card (S$28)
15.96
Singtel Hi!Card (S$28)
32.63
2
Starhub Green
12.75
Starhub Happy Star card (S$17)
18.46
M Card Super S$130
38.75
3
Singtel Hi!Card (15% bonus)
13.25
Hi!Card (S$55)
19.71
Starhub Happy (S$128)
41.58
Post-paid Plan
Standard 100 min/mth
25.68
Standard 300min/mth
48.15
Standard 300min/mth
48.15

 

The results may be surprising for many because 100min/mth plan can be cheaper than S$10/mth. Yes, it happens. By seizing advantages of the off-period period, you are able to make cheap calls thereby reducing the costs of mobile ownership. Either case, we see most pre-paid plans are cheaper than standard post-paid plans if you ignore the free incoming calls. Bear in mind that pre-paid plans are pay-as-you-use so if you have low usage for that month, you can effectively save more. It is a wonderful way of limiting your phone bill.
An excellent example is a night shift worker. Since there is no 200min/mth plan and outgoing voice at 150min/mth, one need to take up the 300min/mth plan as "adviced" by experts. If he/she takes up a pre-paid plan, savings is sizable and even better than a 100min/mth plan. The saving is nearly half of what he is paying for 300min/mth plan. Can you see the beauty?
Even for a businessman with 300min outgoing voice calls, the bill is much cheaper than a standard 300min/mth plan. Yes, it is possible and you can do your own maths.

The balance of the equation

If pre-paid plans are superior in value, why most of us still signing up post-paid plans? The answers are simple. In the beginning, many have no phone and signing a 2-year contract can get a free or discounted phone. Also, we are haunted by the old Pre-paid plans which are unattractive in value as compared to post-paid plans. It may costs twice as much to call out as compared to post-paid plans.
Now, new pre-paid plans are customized for the new market segments to suit the trend. In Europe and USA, pre-paid plans are bundled with phones and some are having free incoming calls (like M1 SuperPac). These pre-paid plans are very attractive as it offers customers good benefits without a contract to tie them down. If they are near to the end of their contract and the phone is working fine, a new pre-paid plan with free incoming call may offer more values to them.
An interesting find is the M1 SuperPac and Starhub Happy Star. They offer data plan and 24-hours free incoming calls so they are in-between pre-paid and post-paid plans. If you really compare the details, they are catered for travellers and adults who are working 9-6pm who cannot answer mobile during this period (ie. Hotel service staffs).
Last but not least, it is important to consider the validity of the card since its last top up. It will make a difference on what is the frequency of top-up. It is crucial if you seldom use the phone. So, how about getting a pre-paid card now?


Tuesday, 2 March 2010

How to select a Graphic Card for desktop?


The need for good graphics…

To non-gamers, Graphic Card (aka VGA card or Video Card) is just purely a link between the computer and the monitor. For serious gamers, it is a matter of life and death because 1 ms delay in refresh may pronounce you KIA. 10 years ago, we have many vendors producing graphic cards and we are spoilt for choices. Now, only 3 major vendors (Intel, AMD/ATI and Nvidia) compete in this arena. Intel, the first vendor, produces many low-end integrated graphic chips which are mainly fixed on-board offering no option to upgrade. Its arch rival AMD acquired ATI which also produces on-board graphics as well as standalone discrete graphic cards. These discrete are in directly competition with Nvidia. If we disregard Intel low-end chips, AMD/ATI and Nvidia nearly capture 100% of the entire worldwide graphic card market. They shall be the primary focuses of our discussion.
If you acquire a budget motherboard, it is likely that an on-board graphic chip is already present. It provides the basic function to operate basic applications, play simple games and watch movies. Intel's Graphic Media Accelerator (GMA) and AMD/ATI's Integrated Graphic Processor (IGP) dominate the market. There are many complaints of poor rendering and inability to play graphic intensive game until AMD/ATI launches 780G chipset (in Apr 2008) which takes the playing field to the next level. Intel is playing catch up while AMD/ATI announced the arrival of 890 chipset in Jan 2010. This is beyond our discussion but we will reference these chips in our discussion.

Reviews, Benchmark and Charts

With so many reviews written on different graphic cards complete with benchmark charts and statistics, choosing a discrete graphic card should be a piece of cake. However, the 2 camps (Nvidia and AMD/ATI) adopt different architectures and specifications in their design and it is not an apple to apple comparison. To confuse us further, they introduce different technologies into their cards and boost about the value-added on the experiences of viewing 3D etc. Nvidia has CUDA, SLI, Optimus, PhysX, PowerMizer and PureVideo. AMD/ATI offers Eyefinity, Avivo, Catalyst, HyperMemory, PowerPlay and CrossFireX. Each claims their technologies are superior and in my opinion, many review sites fail to link what customers really want. With the latest graphic card, they focus entirely on benchmarks, applications and games based on a fixed budget. They fail to provide a complete picture of what are available in the market (especially outside USA). They keep promoting the latest graphic card thinking that it is always superior in design and price against obsolete product lines. Perhaps they are sick of reviewing cards with minor improvement over the old ones or they are paid to promote and give good comments to entice customers to purchase them. None of them clearly tells you what you should look for in the graphic card. I hope to fill in this gap.

Budget and Motherboard slots

The industry defines low-end graphic cards with a price tag of below US$100 (S$145), mid end graphic cards between US$101 to US$300 (S$146 – S$435) and premium cards for more than US$301 (S$435). Since you can invest in 2 graphic cards concurrently with SLI and CrossFireX technologies, it is prudent to know if you are getting 1 card or 2 cards else you will burst your pocket. You also need to know if your motherboard can support multi-cards, check the number of PCIe slots you have and if the PCIe belongs to 1.0 or 2.0 standards.
My advice is simple. If your motherboard has no on-board graphic and you are a non-gamer, choose a low-end graphic card (HD5450 is an excellent card with TDP of only 19.1W). If you are a casual gamer, go for mid-end. If you are a serious gamer, be prepared to burn your pocket or look for a reasonable good mid-end card.

Technical Specifications

In the good old days, we only check on the processor speed to determine if it is a fast processor. For graphic cards, it is not a straight forward story because both camps have different design architecture resulting in AMD having more processors than Nvidia. This does not necessarily mean that AMD is faster than Nvidia. Therefore, I shall list down the considerations in order of priority.
  1. Rendering Output Units (ROP) – MOST IMPORTANT CONSIDERATION
    ROP determines the price point. A high-end graphic card has 32 ROP while a low-end graphic card has 4 ROP. Usually, a high ROP commands better price. ROP takes pixel and texel information and processes them in the local memory. If you have a small ROP, everything will be done slowly especially in 3D.
  2. Texture Mapping Units (TMU) and Graphic Processing Unit (GPU)
    As the names imply, TMU and GPU handle texture and graphic separately before passing them to ROP. The more TMU and GPU you have, the faster is the process. However, AMD generally has more GPUs than Nvidia so you can compare them only if they are from the same vendors.
  3. Fabrication Process and Heat Dissipation (TDP)
    An advanced fabrication production will squeeze more transistors into the same chip resulting in smaller size and less heat dissipation. Graphic chips are producing using 40nm to 65nm technology. Smaller fabrication process produces energy efficient chip to reduce heat dissipation. As you may not be aware, for instance HD5970 chokes up maximum of 294W which require you to have an external power plug to power the chip as PCIe 2.0 can provide only 150W of power. Your power supply may also need to be 700W to ensure normal operation.
  4. Active or passive Heatsink
    An active heatsink refers to a fan rotating non-stop during operation. A passive heatsink cools itself via non-mechanical means such as liquid cooler or having an excellent metal conductor mounted to the chip. The latter offers a quieter operation environment but cost more than the formal. You need to examine it before buying.
  5. Memory bus width/type
    High-end graphic has 256-bit while low-end cards supports 32-bit data transfer. A higher transfer speed means faster delivery so look for a higher bit memory bus. For memory type, GDDR is preferred over DDR and GDDR5 is faster than GDDR3.
  6. The rest of the specifications
    To your sweet surprise, memory size, memory clock rate, GPU core speed, bus width, GPU memory sizes are not in my priority list as touted by many websites. Yes, they are indeed secondary concerns. They are only meaningful if you know how AMD/ATI and Nvidia name their card models which we will discuss in the later paragraphs.
After understanding what to look for in a graphic card, it is nice to know how the vendors name their cards in the next section.

AMD/ATI Cards

For Radeon and Evergreen series, AMD adopts a simple way to name their models – HDxxxx where x are digits. The first digit represents the generation of the cards. The second digit represents the range of the card (3 for low-end, 6 for mid-end or 8 for high-end). The last two digits tell us the capability of that range. Usually, a higher number means better performance.
For example, let's take HD 4870 as an example. It is the 4th generation of AMD card and it is a high-end version and it performs better than a HD 4850 in the range segment. So we can deduce that HD 5670 is a newer card as compared to HD 4870.

Nvidia Cards

Nvidia has pre-GeForce series, GeForce series to Geforce 9xxx series and GeForce 100 to 400 series. At the moment, only GeForce 9xxx and GeForce 200 and beyond are available in the market.
Unlike AMD, Nvidia employs suffix for additional information according to this order: GS < GT < GTS < GTX. Therefore, we know that GTS is more powerful than GT etc. In contrast, we seldom see suffix in AMD offerings.

A Case Study

If we are looking for a mid-end card with a budget for S$150-200, let's see what is available in Singapore.
Vendor Model
Nvidia GeForce
AMD Radeon
Part number
9800GTX
GT 240
GTS 250
HD 4770 512M
HD 5670
HD 5750 1G
ROP
16
8
16
16
8
16
GPUs
128
96
128
640
400
720
Texture Units
64
32
64
32
20
36
Fabrication (nm)
65
40
65
40
40
40
TDP (W)
140
69
145
80
61
86
Memory Bus width
256-bit/GDDR3
128-bit/GDDR3
256-bit/GDDR3
128-bit/GDDR3
128-bit/GDDR5
128-bit/GDDR5
Retail Price (S$)
185
149
179
149
149
209
Comments
Replaced by GTS250
Eliminated due to 8 ROP
Eliminated due to 8 ROP

 

We have 3 Nvidia chips and 3 AMD chips. 9800GTX and HD4770 are older chips as compared to the newer series. The first thing we see is that GT240 and HD5670 have 8 ROP which is undesirable. Given that they are priced equally to HD4770, I would rather choose HD4770 over the 2 newer chips which offer lower heat dissipation. You can also see that HD 4770 has more GPUs over HD 5670 so HD 4770 is better.
Next, we see that both 9800GTX and GTS250 have similar specifications but GTS250 is much cheaper. So we shall dismiss 9800GTX.
Comparing HD4770 and HD5750, the latter is superior in specifications with more GPUs, Texture Units with a better and double GDDR. It is priced S$60 more than the formal.
If you are price-conscious, grab HD 4770 512MB. If you are going for performance, both HD5750 and GTS250 are even in specifications so GTS250 will be my choice since it is cheaper but consumes more power. Unless you want support for 3 displays (Eyefinity) and DirectX 11, HD5750 will be your choice.

Summary

I hope the above helps you to choose wisely instead of relying on reviews of individual cards or charts. In office environment, you do not need a discrete graphic card if you buy a motherboard with decent on-board graphic (like AMD 790).
Have you notice that the power consumption of a video card in full load usually exceeds the CPU. The computer is taxed for additional ~100W which may not be necessary in running word processing, emailing and surfing the web. In the long term, you are paying more on electricity bills on top of the defrayment of the discrete card. The bad news is video cards are running at high temperature so they will fail easily after their standard warranty period of 12-24 months, especially if they are cooled down by active fans. This is another reason why I hate to buy overpriced OEM brand desktop which comes with a discrete card.
Nonetheless, the fun is the process and not on the result. J

Monday, 1 March 2010

Should I buy a 3D TV now?


Avatar 3D the movie…

After Avatar 3D hits the US Box office, the spectacular wave of 3D movies sends the 3D rampage worldwide. Young and old enjoy the movie with the additional dimension despite wearing 2 glasses if you are short or far sighted (your own and another 3D glasses provided by the cinema). Many are eager to jump on the wagon of enjoying 3D movies and the first thing they wish to upgrade is their 32" LCD TV, especially for those with projector TV or CRT TV. But is this the best time to buy 3D TV now? What are the concerns in buying the 3D TV besides worrying about integration with the furniture? Well, you simply cannot wait to embrace 3D technology.
Let's talk about the equipments first. Getting a 3D TV is just the tip of the iceberg. To enjoy 3D video, you need to get a blu-ray player, a true 3D TV and a 3D goggles/glasses (we will talk about the exceptions later in this blog). The best part about 3D is there is no defining standard so far so manufacturers can claim whatever they like on their products.

BLU-RAY PLAYER

Blu-Ray player is needed because high resolution video requires much storage space. Blu-Ray disk can accommodate any 3D video with ease so a Blu-Ray player is needed if you enjoy the movie.

True 3D TV

Forget about the brands because there are many junk TVs out there which are NOT True 3D. By definition, a True 3D TV should support 1920 x 1080 pixels, HDMI 1.4 and refresh rate of 120Hz. You can select from 4 technologies for TV – Liquid Crystal Display (LCD), Plasma, DLP (Digital Light Processing) and Cathode Ray Tube (CRT).
  • LCD TVs are light, good for static pictures, reasonable lifespan and have many 1080 pixel models to choose from due to the recent mass production. However, they are poorer in displaying fast moving pictures, suffers from pixel failures and generally expensive for 37" or above.
  • Plasma TVs enjoys a longer lifespan than LCD TV, has good viewing angles and great contrast ratios with excellent picture response. The drawbacks are they suffer from burn-in problem (that's why unsuitable to use with computers) and not available less than 37".
  • DLP TVs adopts projection technology to illuminate a large screen for viewing with good brightness and colour at a good price point. But they have a high recurrent cost in maintenance and poorer in picture quality as compared with Plasma. By the way, cinemas are using DLP for the big screen with polarized glasses.
  • CRT TVs can support upto 140Hz refresh rate but 3D, maybe you are talking about the sound effect. lol
Due to excessive flow of investment into LCD TVs and the preference of big screen, the market share for LCD is growing while Plasma, DLP and CRT are diminishing dramatically. Around 90% of new TVs sold worldwide are LCD TVs. That's why there are more 3D LED TVs in the market than the rest. However, many are junks which cannot meet the specifications of the True 3D. Due to the fact that we have 2 eyes, refresh rate must be doubled to 240Hz to achieve 120Hz for 3D. If you feel dizzy halfway through the movie, the LCD TV does not meet the specifications of 240Hz refresh rate. In addition, the display 3D images in interlace format, vertical 1080 lines will be halved to 540 lines. At the moment, hardware chip which can refresh at 240Hz is exorbitant priced so many LCD TVs are in fact having 1920 x 540 pixels. They are still one step away from the True 3D definition.

3D Goggles/Glasses

After much discussion about the TVs, you must be thinking 3D goggle/glasses should be the easiest equipment to buy. If you harbour this thought, you are dead wrong. Depending on the 3D TV you buy, you will need different 3D glasses because goggles also have no standards. For LCD and Plasma TVs, you need shutter glasses with batteries. The TV tells the glasses which eye should see the image being exhibited at the moment. For DLP TVs, you need polarized glasses (no battery needed). So don't buy the wrong goggles/glasses.

Other Technologies

Generally, the costs of True 3D LCD TV is around 3 times of normal LCD TVs. For high end TVs, some manufacturers are making 3D TVs without the need of wearing goggles/glasses. They may cost 6-10 times more so only a handful can afford. Other challenges include the integration of 3D googles with spectacles (50% of Singaporeans wear spectacles so I see 50% clowns inside the cinemas), the need of massive production of 3D movies and the R&D effort for a lower cost chip to power 240Hz refresh rate. Given the popularity of the movie Avatar, we hope to ride the wave to create a sensational 3D experience for all movies to come.

Final Comments

3D stereoscope is invented in 1844 while the first 3D movie (The power of love) is made in 1922. If everyone can wait for nearly 100 years for 3D technology to mature, you can wait too.

Thursday, 21 January 2010

Upgrade to Cloud Anti-Virus?


Cloud Computing

What is Internet? Internet means interconnected network and due to its complexity, many diagrams in the early days just draw a cloud to define an internet. It has no boundary for countries but everyone can access it just like we see the cloud above us. The era has arrived for us to shift part of our applications from our desktop and notebook to the cloud. Google did a splendid job in entrusting our emails online. However, it is not a cloud computing application because the emails are hosted exclusively in Google's servers.
So what is a cloud computing program? Cloud computing has a virtualized service which offloads the required infrastructure from our current desktop and notebook. To put it simply, it is a service over the internet. An example is Cloud Anti-virus or firewall application. So what are the benefits of shifting over to Cloud Anti-Virus?

Conventional Anti-Virus Applications

The current conventional method of securing a computer from viruses is by installing a local anti-virus program. It is like placing armies in a castle to create a fortress to prevent and detect spies and enemies. The early generation of anti-virus software proved efficient in fighting enemies but slowly failing in its task to prevent undercover spies (Spyware, Trojan horses and malwares). Users have to install additional applications like Adware/Scumwar, Trojan, Rootkit scanner and remover. For better control, a firewall is installed to provide an all-rounded defense.
If you are not a paid subscriber of these applications, you will not enjoy real-time protection or the update will be time consuming (eg. Avira AntiVirus). Besides these shortcomings, the critical problem of this method is the slow update of what new viruses, spywares etc are surfacing. Without knowing what are the faces of the new spies, the defenders cannot recognize and prevent them from entering the forest. The delay may be more than 30 days for any new viruses. It simply implies that the so-called "update" you have is already 30 days old from its first public appearance. Therefore, most programs are set to daily update to ensure you are catching up with the 30 days old news.

Cloud Anti-Virus

Cloud Anti-Virus reduces the update time to approximately 3 days, a 90% improvement. By sharing the same intelligence in the cloud, you will be instantly protected if anyone of the users detects and successfully removes the new virus. This is a paradigm shift as all users will be sharing a same virus database which is updated frequently. Your system will no longer bark you to download updates and it works transparently and silently in the background. Isn't that wonderful?

Limitations

If it is so good, why don't you grab it now? Wait, before you click to download, let me tell you the constraints.
  • Internet Access
    First and foremost, you need an internet access to access the cloud. If you are not connected to the internet, a file transfer from an usb drive or harddisk may infect your computer. Since your computer has no virus database, all file accesses will be done by referencing to the cloud database. You will be vulnerable when you have no network. If your network is slow, scanning may also be slower as expected.
  • Privacy
    Depending on the algorithms, different cloud anti-virus has different ways to scan the file for infection. If some files are sensitive in your computer, you do not want to send part or full file over to the cloud for scanning. You may not even want people to know its filename! That is the reason why financial institutions like bank or governments are slow to adopt this new technology.
  • Customisation
    Next, customization is beyond your control. By tapping on to the cloud for scanning, there is no way to tell the program that you wish to omit files which you trust have no viruses. The engine decides what needs to be removed or what needs to be quarantined. You just have to accept the consequences. Many bossy corporate find this unacceptable and reject them altogether.

Download Links

There are just a handful of cloud anti-viruses programs available. For a home user, you may like to consider these two for a start. Detecting virus proves remarkably impressive so it is worth to give it a try since they are free of charge.
I am sure you will not regret getting the next generation of anti-virus software. In the near future, we should see more and more cloud applications. At the moment, I am using a Cloud Trojan Remover and the scanning speed is pretty impressive at 10 times faster than the conventional scanner. Still, it manages to stiff out and quarantine 2 Trojans from the system.

Wednesday, 20 January 2010

Quality of Life in Singapore 2010


Quality of Life Index

A recent study attempts to rate and rank the best places based on Quality of Life Index of 194 countries. The author acknowledged that this rating is western-biased and compare 9 factors to derive a score. The top 5 countries are France, Australia, Switzerland, Germany and New Zealand. Surprisingly, Singapore is ranked numerically 70th and the printed media has no report on this study till now. Is there a mistake or the biased factor resulted in such low ranking?

Positioning and Rank

As Singaporeans, we are trained to think position is everything. In this case, the ranking system will be our first focus. Naming Singapore at 70th position is incorrect because for the same scores at 61, there are 6 countries. If we give the same rank for the same scores, Singapore is ranked 21th out of 194 countries. We notice an improvement but should we deserve better? A peek into the formula shows the index does not have any decimal points. Perhaps providing decimal will give a clearer picture. However, when the formula is applied, we failed to derive the same results as the study. Nonetheless, the formula shows that Singapore is ranked 56th position with a score of 57.35. So we are standing at the top 28.87% of the Quality of Life survey. Is that the complete picture?

Review of the factors

Instead of squeezing the figures to climb higher in the ranks, let's try to review our weaknesses and improve on them. Let's dig more:
  1. Cost of Living (ranked 29 out of 47)
    We scored badly in this category. This factor is tagged to the lifestyle in US so having a lower position than US means that our cost of living is worst than US. Looking at the inflation of goods and services, our daily expenses are higher than yester years and we may be having a lower score next year for this category. Singapore, an open economy, is vulnerable to economy jitters and shakes. As almost everything is imported from elsewhere, there is little chance of making this category better except making Singapore dollars stronger than other currencies thus making things cheaper. So if you step out of Singapore, you will realized Singapore dollars is strong as compared to many other currencies. (Side note: Sweden has a rating of 0?)
  2. Leisure & Culture (ranked 17 out of 66)
    Singapore is ranked above average in this sector but I consider this one of our potential weaknesses. One may argue that visiting museums and reading newspaper may not be our national pass time. The internet era of wireless network has changed our lifestyle in obtaining news and updates via twitter and television against the conventional printed media. However, most Singaporeans will agree with me that we have limited recreational activities besides watching movies in cinemas. Nearly all activities that can attract people are indoor-based else Singaporeans will refuse to participate. Perhaps the hot humid weather is to blame as well.
  3. Economy (ranked 10 out of 34)
    Singapore has strategic focus on economy and we have scored well in this category. Isn't it surprising to learn that a small island is ranked top 10 in the economy field? In contrast, Iceland which has already bankrupted is ranked 31 out of 34. Strangely, US, technically bankrupted, still ranks 11th behind Singapore. Interestingly, China is ranked 9th and is leading us. The lion has woken up.
  4. Environment (ranked 34 out of 44)
    Despite being Singapore named Garden City, our score is very disappointing in this category. Being small is our constraint. Even with excellent city plans and implementation, we fail to register a good image in this study. But everyone agrees that the National Parks has done a good deal in greening the environment we live in and provides excellent facilities for residents. Now, have you wonder why there are no butterflies in a garden city? Perhaps the fault lies in the residents themselves.
  5. Freedom (ranked 8 out of 13)
    In a democratic society, Singapore is ruled with laws to maintain order. Comparing to the west, perhaps the political climate of one party rule is not favourable to the west and therefore, we are ranked lower in this category. Taiwan, where opposing politicians fight amongst themselves in parliament sessions, is ranked second. The question is do we want to follow their footstep.
  6. Health (ranked 17 out of 72)
    With an increasing graying population, this category is a worrying concern in the near future. So far, we did well in this category but the cost of making sure Singaporeans is alive is higher than the burial cost. Singaporeans will live longer than their parents but more costs will be spend in making sure of that. So investing in your health is more important that investing in your finance portfolio.
  7. Infrastructure (ranked 15 out of 43)
    We have an above average rating in this category assisted by the 100+% mobile ownership and the good transport network. However, there is a high price tag we are paying to enjoy and maintain such facilities. If more vendors are in the market, healthy competition will drive cost down and consumers will benefit more.
  8. Risk & Safety (ranked 1 out of 15)
    This is the best category Singapore has scored and ranked 1st. However, 56 countries scored full marks so there is nothing to be proud of. The challenge is to maintain our position else our position will be 57th next round. The parties responsible shall lies with the Police and security departments and so far, they are doing a great job with low crime rates for years.
  9. Climate (ranked 54 out of 76)
    There is nothing we can do to change the hot humid weather, rainfall and 32 degrees celsius. Our only comfort is Singapore is blessed with no major natural disasters. On this point, it is strange to note that Indonesia is ranked 14th in this category with live volcanoes and occasional earthquakes.

     

Conclusions

Singapore, a tiny island, with no natural resources has scored well in this study considering its inherent limitations. The study aims to bring out the best places to live in the perspective as a foreigner. If you intend to migrate, this index will be very useful to you. But if you are a local, it is just a gauge of how attractive is your country to potential immigrants. Singapore adopts the foreign talent policy so it is important to improve our scores in all categories to make Singapore a better place to stay – for both locals and foreigners.
For you and me, everywhere is the same as long as your loved ones are beside you. This is all that matter.

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