Athlon 64 Memory: Rewriting the Rules
by Wesley Fink on October 1, 2004 12:45 AM EST- Posted in
- Memory
Performance Comparisons
The six DDR memories were compared at each of the 2.4Ghz settings, the Highest Memory Speed, and the Highest Memory Performance. Comparisons of memory on the Intel 478 platform can be found in memory reviews at:OCZ 3700 Gold Rev. 3: DDR500 Value for Athlon 64 & Intel 478
Geil PC3200 Ultra X: High Speed & Record Bandwidth
=F-A-S-T= DDR Memory: 2-2-2 Roars on the Scene
Buffalo FireStix: Red Hot Name for a New High-End Memory
New DDR Highs: Shikatronics, OCZ, and the Fastest Memory Yet
The Return of 2-2-2: Corsair 3200XL & Samsung PC4000
OCZ 3700EB: Making Hay with Athlon 64
OCZ 3500EB: The Importance of Balanced Memory Timings
Mushkin PC3200 2-2-2 Special: Last of a Legend
PMI DDR533: A New Name in High-Performance Memory
Samsung PC3700: DDR466 Memory for the Masses
Kingmax Hardcore Memory: Tiny BGA Reaches For Top Speed
New Memory Highs: Corsair and OCZ Introduce DDR550
OCZ PC3700 Gold Rev. 2: The Universal Soldier
OCZ 4200EL: Tops in Memory Performance
Mushkin PC4000 High Performance: DDR500 PLUS
Corsair TwinX1024-4000 PRO: Improving DDR500 Performance
Mushkin & Adata: 2 for the Fast-Timings Lane
Searching for the Memory Holy Grail - Part 2
Memory performance was compared at 200x12 (2.4Ghz, DDR400), 218x11 (2.4Ghz, DDR438), 240x10 (2.4Ghz, DDR480), 267x9 (2.4Ghz, DDR533), the Highest Memory Speed that could be reached, and the Highest Memory Performance Settings that we could reach. With a constant CPU speed, memory comparisons show the true impact of faster speed and slower memory timings on memory performance.
Results are compared for Quake 3, Return to Castle Wolfenstein- Enemy Territory, Sandra UNBufferred Memory Test, Sandra Standard Buffered Memory Test, and Super PI. SiSoft Sandra 2004 reports 2 results for each memory test - an Integer value and a Float value. Results reported in our charts are the result of averaging the INT and FLOAT scores, which are normally close in value. INT and FLOAT scores were added and divided by 2 for our reported score.
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xeoph - Wednesday, March 9, 2005 - link
I also wanted to mention it in this artical if it hasnt been already.The pricing above the ultra X is for Ultra Platinum. The www.memory-up.com link is a little misleading because it doesnt give the exact tech specs.
simply a mistype. m-400-512x2glx1gb3200dc is what your looking for, little X between gl and 1gb.
mervine - Sunday, October 10, 2004 - link
hi WesleyYou mention the newer Samsung TCCD chips overclock better on AMD64 than the older ones, How long have these new chips been avaliable?
The reason I ask is I live in europe and stocks over here might not be as new as in the states. I'm looking to buy some ocz rev2 but is there any way to tell if its using old or new revision TCCD?
PrinceXizor - Tuesday, October 5, 2004 - link
Wesley:I appreciate your point. I suppose I would have been vaguer in my statements than you were, that is my only point (probably a matter of subjective opinion of course). Something like...
"In the course of testing, it was discovered that we were being adversely limited by the power supply used in our testing rig. Switching to a higher wattage power supply unlocked the potential of many of these DIMMS. While the actual problem with the original PSU requires more analysis time than we had for this review (lower wattage? lower rail amperage? lower rail tolernaces?), hard-core overclockers should carefully inspect the specifications on their PSU's if they plan on maxing out the OC on their memory modules. Switching power supplies, as we did, may help you to reach the overclocks attained in this review."
Something like that is all I would have liked to see, instead of a blanket recommendation for a higher wattage PSU. That was my point.
All this being said, I still enjoyed the review! I look forward to more memory module reviews in the future.
P-X
jynxycat - Tuesday, October 5, 2004 - link
good review, i was on the edge between the PQI and Crucial sticks, not really knowing what to expect from the PQI on an AMD setup.finally a full review of what the respective sticks will achieve on the AMD platform, very much appreciated.
Blappo - Sunday, October 3, 2004 - link
42:That is true. It might be interesting to see a comparison of PSUs to see which one would give the highest overclock. I would guess that the PSUs with high ratings would perform well, but there might be some lower power PSUs delivering good quality power that perform well, or some high output PSUs that perform poorly because of low quality power.
darkwaffle - Sunday, October 3, 2004 - link
41:I'm not sure how much of a direct comparison you could make between the 3 PowerStream models, because according to http://www.ocztechnology.com/products/PSUSpec.pdf the +5 rail differs on the 420 and 470, and the +12 rail is different on all of them.
Blappo - Saturday, October 2, 2004 - link
I would be curious if using either the 420W or 470W OCZ PowerStream models would change the amount the memory could be overclocked? Since they are in the same model line then any differences when OC would be attributed to the amount of power available, and not the quality of power available.LocutusX - Saturday, October 2, 2004 - link
I've got the one Wesley mentioned. It's the Enermax EG465P-VE - the *Q4 2001* model. That same model which is *currently* available in stores has slightly different specs. Anyways, I think I'll keep in mind a possible upgrade to the Powerstream since that would probably help my OC situation as well.KingofFah - Saturday, October 2, 2004 - link
#14,15,20,24(This is more directed to #20)
As Wesley said:
+3.3V - 38A
+5V - 44A
+12V - 20A
-5V - 2A
-12V - 1A
+5Vsb - 2.2A
are the specs of the 465 they used.
Considering they switched to 520W OCZ Powerstream:
+3.3V - 28A
+5V - 40A
+12V - 33A
-5V - .5A
-12V - .5A
+5Vsb - 2.0A
Even though there is a drop in amperage on the 3.3 and 5v rails, there is a great increase in the 12v. CPU, GPU, HDDs, Optical drives, fans all get there power off of the 12v line.
Since w = v x a, if you want a good power supply, it almost certainly will have a lot of watts on it, but you only find good amperage on high quality models... So maybe you can see why they said +500 quality PSU??
My question is: Which rail does the memory draw from? Is it still the 5v?
Marlin1975 - Saturday, October 2, 2004 - link
Wesley Fink, since it has been shown many times that more and more current systems need better power. Why not do a review of power supplys. Everything form top dollar name brand ones to cheaper high "watt" ones to see if they put out what they say at each rail and if they help or hurt a system when doing normal work to over clocking?I know power supplys are one of the most over looked items and I am building a HIGH power system right now and can not find any real reviews other then other people saying use or don;t use brand X
Thanks