Value RAM Roundup: Computing On a Budget
by Wesley Fink on April 11, 2005 4:26 PM EST- Posted in
- Memory
Transcend JM366D643A-50
Transcend will be best known to some of our readers as a manufacturer of flash memory. While flash memory is an important product line for Transcend, they also manufacture storage products and system memory. You will not find Transcend for sale at a huge number of US websites, but Transcend also sells directly to end-users at their website. Transcend has US sites in both Spanish and English, as well as several European language sites, and Taiwan, Japan and China websites.
Specifications
Transcend rates JM366D643A-50 at DDR400 CAS 2.5 and we found the "auto" or SPD timings to be 2.5-3-3-8.| Transcend JM366D643A-50 (DDR400) Memory Specifications | |
| Number of DIMMs & Banks | 2 DS |
| DIMM Size Total Memory |
512 MB 1GB |
| Rated Timings | 2.5-3-3 |
| SPD (Auto) Timings | 2.5-3-3-8 |
| Rated Voltage | 2.6V |
Transcend shows both DDR400 CAS 2.5 and DDR400 CAS 3 in their product list, so it is clear that the DIMM products from Transcend are aimed at the Value end of the memory market.
Test Results
| Transcend JM366D643A-50 - 2 x 512Mb Double-Bank | |||||||
| CPU Ratio at 2.4GHz | Memory Speed |
Memory Timings & Voltage |
Quake3 fps |
Sandra UNBuffered | Sandra Standard Buffered |
Super PI 2M places (time in sec) |
Wolfenstein - Radar - Enemy Territory fps |
| 12x200 | 400 DDR | 2.5-3-3-6 2.6V 1T |
532.0 | INT 2420 FLT 2593 |
INT 6050 FLT 6036 |
82 | 111.9 |
| 11x218 | 436 DDR | 3-3-3-6 2.8V 1T |
529.2 | INT 2593 FLT 2735 |
INT 6393 FLT 6309 |
82 | 111.7 |
| 12x223 (2.68GHz) |
Highest CPU/Mem Performance | 3-3-3-7 2.8V 1T |
575.5 | INT 2668 FLT 2835 |
INT 6650 FLT 5516 |
75 | 122.5 |
Transcend is another memory that costs just $100 for a Gigabyte and yet manages to nearly reach DDR450 in overclocking. The cost and performance are very similar to the Kingston CAS 3 rated Value RAM except that Transcend rates its Value RAM at CAS 2.5. While the rated timings differ, both Kingston and Transcend both are stable at CAS 2.5 at DDR400. The Transcend RAM is an excellent value and provides the overclocking capabilities to reach a 12% CPU overclock at 1:1 memory ratio.
We have looked at Aida 32 results in the past, and found them to be very useful in examining read/write performance and memory latency. Aida 32 is now available as Everest Home Edition, a free download from www.lavalys.com.
| Transcend JM366D643A-50 (DDR400) 2x512Mb Double-Bank Everest 1.51 |
|||||
| CPU Ratio at 2.4GHz | Memory Speed | Memory Timings & Voltage |
Everest READ MB/s |
Everest WRITE MB/s |
Everest Latency ns |
| 12x200 | 400 DDR | 2.5-3-3-6 2.6V 1T |
5801 | 1861 | 47.7 |
| 11x218 | 436 DDR | 3-3-3-6 2.8V 1T |
6028 | 1906 | 48.8 |
| 12x223 (2.68GHz) |
Highest CPU/Mem Performance 446 DDR |
3-3-3-7 2.8V 1T |
6306 | 1989 | 47.9 |
It is easy to see in the Everest results that dropping CAS just from 2.5 to 3 in moving from DDR400 to DDR436 offsets virtually all of the performance improvements that you get from higher memory speed. The $100 Transcend reaches on to DDR446 to give you most of the headroom that you need for air-cooled 1:1 overclocking at stock multipliers.
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shoRunner - Monday, April 11, 2005 - link
when did value ram cost $200 for a gig...dvinnen - Monday, April 11, 2005 - link
Anyone else finding these Value VX moduals? The link above timeings are 3-4-4-8, not 2.5-3-3-7.JarredWalton - Monday, April 11, 2005 - link
Please remember that it is rarely feasible for reviewers/sites to go out and buy all the hardware for a roundup. Wes submitted requests to several manufacturers, and this is what *they* felt like sending for testing. Of particular note is the comments from Corsair - they are not alone in rotating chip types on their value RAM. Maybe that is why several companies (i.e. Mushkin) didn't simply send their cheapest RAM.Looking around at various resellers and the pricing Engine, there are quite a few other RAM manufacturers/models out there worth considering. Corsair, Crucial, PDP, PQI, G.Skill, and several others have some really good RAM at $150 or less. You can even find PC4000 rated RAM for around $160 now.
Trust me, it's not practical to try to do a roundup of ALL value RAM. There are just so many models out there, all with different performance characteristics. If you don't want to overclock (at all), most of the $90 to $120 RAM will work well.
We should also have a "Your Mileage May Vary" clause in the article, as what Wes achieved is by no means a scientific sampling of each product. That would require at least 10 samples of each, and when you take the amount of time required to test OC'ing on *one* DIMM setup, it would take months to complete a scientific sampling of RAM.
reactor - Monday, April 11, 2005 - link
quite right tony, was well done and hope to see further editions of the article. paying less and getting more is always good :)bigtoe36 - Monday, April 11, 2005 - link
Typos's..."seem" is seen, "we" is were...se we all make mistakes.bigtoe36 - Monday, April 11, 2005 - link
VX runs well with 2-3-2 timings with lower voltage. I have seem 233fsb 2-3-2 at 2.8V or so which is a little faster than 2.5-3-3 at the same fsb ;-).Regarding the modules that we not tested, you have to remember there are hundreds of different types of ram, not all can be reviewed in one go, I suspect this review alone took quite some time to complete as the AT LABs are a real busy place...i know Wesley is VERY busy not only reviewing but also pushing manufacturers to get boards overclocking better and pushing the enthusiast movent forward.
If only you guys had any idea of what Wes has done for the enthusiast over the past 2 years, i do and please take it from me the boards you are seeing at the moment are the fruits of that work.
Well done Wesley, nice review as always, even with the odd typo in amoungst the 8K words you wrote ;-)
bobsmith1492 - Monday, April 11, 2005 - link
Well, anyway, what about the decent Mushkin CAS 2.5 for $84? It seems like a much better deal than the one they tested.http://www.newegg.com/app/ViewProductDesc.asp?desc...
reactor - Monday, April 11, 2005 - link
wouldve like to have seen mushkin blue line and twinmos tmii400, both are supposed to be good comptetitors to the Value VX/BH from OCZ.Cygni - Monday, April 11, 2005 - link
They reviewed Value ram from the MAJOR mfts, they didnt review no name or OEM pieces, just brand name retail stuff.bobsmith1492 - Monday, April 11, 2005 - link
Who picked these.... :(What about the V-data 3200 CAS 2.5 ram for $70/gig at Newegg or the Mushkin CAS 2.5 for ~80? The ones in the review seem more expensive for slower ratings than most of the stuff at Newegg.
That said, the $115 VX value sounds pretty sweet.