Corsair and OCZ: New Standards in Fast DDR2
by Wesley Fink on August 4, 2006 5:50 AM EST- Posted in
- Memory
OCZ Ti Alpha PC2-8000 VX2: Memory Performance
The ASUS P5W-DH test platform provides a wide range of memory ratios that match available DDR2 memory. This allows end-users to select the memory ratio that matches their DDR2 memory speed if they wish, or to choose a speed value over or below the rated memory speed. For those reasons, all of the stock ratios are tested at the fastest stable timings that could be achieved at the given ratio. With ratios, CPU speed remains constant at 2.93GHz and memory speed is varied by choosing different ratios.
DDR2 memory is then pushed from the highest stock ratio that could be achieved in testing - in this case 1067 - to the highest FSB speed at the stock multiplier. The OCZ reached the same stable speed as the top Corsair - DDR2-1112. While the system could boot at speeds as high as DDR2-1130, the OCZ memory, like the Corsair, could not complete our benchmark tests at higher than DDR2-1112. Those who will use more exotic memory cooling will likely be able to move even higher with OCZ Titanium Alpha, but DDR2-1112 tied the OCZ with Corsair for the second highest DDR2 clock speed achieved in our DDR2 tests with the Mushkin XP2-8000 Redline reaching DDR2-1116.
While OCZ required a bit more voltage at some speeds, in the end the performance was all but identical to the Corsair 6400C3. OCZ and Corsair start with different rated speeds and different approaches to performance, but they have both ended up producing the overall fastest DDR2 memory we have tested thus far.
The ASUS P5W-DH test platform provides a wide range of memory ratios that match available DDR2 memory. This allows end-users to select the memory ratio that matches their DDR2 memory speed if they wish, or to choose a speed value over or below the rated memory speed. For those reasons, all of the stock ratios are tested at the fastest stable timings that could be achieved at the given ratio. With ratios, CPU speed remains constant at 2.93GHz and memory speed is varied by choosing different ratios.
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| Click to enlarge |
DDR2 memory is then pushed from the highest stock ratio that could be achieved in testing - in this case 1067 - to the highest FSB speed at the stock multiplier. The OCZ reached the same stable speed as the top Corsair - DDR2-1112. While the system could boot at speeds as high as DDR2-1130, the OCZ memory, like the Corsair, could not complete our benchmark tests at higher than DDR2-1112. Those who will use more exotic memory cooling will likely be able to move even higher with OCZ Titanium Alpha, but DDR2-1112 tied the OCZ with Corsair for the second highest DDR2 clock speed achieved in our DDR2 tests with the Mushkin XP2-8000 Redline reaching DDR2-1116.
While OCZ required a bit more voltage at some speeds, in the end the performance was all but identical to the Corsair 6400C3. OCZ and Corsair start with different rated speeds and different approaches to performance, but they have both ended up producing the overall fastest DDR2 memory we have tested thus far.
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Beaner - Friday, August 4, 2006 - link
Just curious...The picture of the Corsair DIMMs show the bottom one as 512MB.
Was the wrong one used for the photo?
JarredWalton - Friday, August 4, 2006 - link
The model name is correct at the top of the sticker, so I'm guessing it's a pre-release sample and the "512MB" is simply a typo. As Wes mentions, it doesn't appear that Corsair has an equivalent 2x512MB kit (yet?).CrappyLuckMan - Friday, August 4, 2006 - link
I would still like to see how budget DDR2-800 performs too. For some reason you guys left them out of the feeding the monster article. Do you guys think it's better to just go with value PC5300/5400 and overlock it? However, I would think you could overlock value DDR2-800 to around 1000mhz. In honesty I'm posting this out of selfishness since I ordered Corsair XMS2 1GB kit (my games I run never hit 1GB PF usage) TWIN2X1024-5400C4 4-4-4-12 1.9V for $108 is great for relatively low latency low voltage highly compatible ram.Your articles with specifics such as voltage and latencies you use for stable overclocks really save us users some time and we thank you for that.
CrappyLuckMan - Friday, August 4, 2006 - link
Oops made a bad com error. I should mention I meant to say it would be nice to compare which is better, lower latency lower voltage value pc5300/5400 or higher volt higher latency value pc6400 ram. Sorry tired from waiting on news for new motherboards last night lol.EarthsDM - Friday, August 4, 2006 - link
Wesley,In the discussion of his article, “Conroe Buying Guide: Feeding the Monster” (July 19th, 2006) Gary Key replied to a question on G.Skill memory, saying “We still have additional memory selections from a variety of suppliers arriving for further memory reviews at this time.” Is this what he meant, or are you guys going to review the G.Skill? I don’t want to sound ungrateful for the reviews you do, but G.Skill is a memory that of a lot of us (system builders) are interested in because it seems to offer the best performance/price.
On a separate but related note, do you know when the next round of motherboard reviews will be posted? I’m sitting on some Core 2 Duos and I need systems to put them in for back-to-school. Thanks a bunch!
-EarthsDM
Wesley Fink - Friday, August 4, 2006 - link
We have the latest G. Skill on the way. We will schedule a review when it arrives.EarthsDM - Friday, August 4, 2006 - link
Thanks!yacoub - Friday, August 4, 2006 - link
The enthusiast, by definition, is always looking for more - more speed, more power, more performance. The quest is for the best - performance so good and speeds so fast that no one can touch their results. You may even consider the enthusiast an elitist, but that is no different than the car enthusiast, a photography enthusiast, or any technology area where hobbyists can be found.Well that's your opinion and I'd disagree with it. Enthusiast does not always equal elitist (in fact it rarely does) nor a need to have the most expensive and latest item. One can be an enthusiast of cars without owning an exotic supercar. One can be a photography enthusiast without ever taking a picture, but simply appreciating the work of others.
I'm not picking a nit, but pointing out the fallacy that if you buy the most expensive and newest item you must be an ethusiast. On the contrary, (reviewers excluded) you're most likely just a sucker for marketing or poor monetary management.
Most computer enthusiasts for that matter are much more interested in building the best bang-for-the-buck system, not the most expensive one they can find, and generally not even using the latest parts. I would say the overclocker is the epitome of the computer enthusiast, as 'he' not only looks for the best performance but often elicits it 'him'self by taking budget parts and using 'his' knowledge and resources available, runs them at the speeds of much more expensive items, thus getting the best of both worlds - cost and performance.
Just a thought.
Wesley Fink - Friday, August 4, 2006 - link
The most expensive is not always the best performance, as we have pointed out many times. The enthusiast seeks the best. The quest for best performance for "x" dollars is also seeking the best. So is overclocking a cheap part for best performnace.I suppose my point was that the enthusiast is not one to "settle" for mediocrity or buy a cookie-cutter system. Your points are well taken and I am in basic agreement.
yacoub - Friday, August 4, 2006 - link
Then they aren't elistists, as elistist brings to mind a rich person who just buys the latest and greatest because 'it is'. Overclockers are economical people to a fault. The two don't match up, hence the discrepancy. =)