OCZ VX Revisited: DDR Updates on DFI nForce4
by Wesley Fink on March 30, 2005 12:05 AM EST- Posted in
- Memory
Test Results: Corsair XMS4404v1.1
To be considered stable for test purposes, Quake3 benchmark, UT2003 Demo, Super PI, Aquamark 3, and Comanche 4 had to complete without incident. Any of these, and in particular Super PI, will crash a less-than stable memory configuration.| Corsair XMS4404v1.1 (DDR550) - 2x512Mb 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 | 400DDR | 2-3-3-6 2.6V 1T |
536.5 | INT 2653 FLT 2839 |
INT 6113 FLT 6066 |
82 | 113.2 |
| 11x218 | 436DDR | 2-3-3-6 2.6V 1T |
543.2 | INT 2772 FLT 3023 |
INT 6488 FLT 6419 |
81 | 114.0 |
| 10x240 | 480DDR | 2-3-3-6 2.8V 1T |
553.7 | INT 3037 FLT 3243 |
INT 6723 FLT 6645 |
80 | 115.9 |
| 9x267 | 533DDR | 2.5-3-3-6 2.8V 1T |
562.0 | INT 3196 FLT 3477 |
INT 7084 FLT 7004 |
77 | 117.2 |
| 9x303 (2.73 Ghz) |
Highest Memory Speed | 2.5-4-4-6 2.9V 1T |
620.7 | INT 3403 FLT 3660 |
INT 7742 FLT 7683 |
73 | 131.1 |
| 10x280 (2.8 GHz) |
Highest CPU/Mem Performance | 2.5-4-3-6 2.9V 1T |
626.0 | INT 3409 FLT 3611 |
INT 7799 FLT 7707 |
71 | 135.8 |
Corsair was reviewed in Corsair 4400C25: Taking Samsung TCCD to New Heights. It is very interesting to see that the DFI board opens up performance of the Corsair a bit more, allowing use to reach a high of 303 (DDR606) at 1T compared to the 295 (DDR590) top 1T performance in the past review. However, the fastest performance was achieved at 10x280 at faster memory timings of 2.5-4-3-6 and a higher CPU speed of 2.8GHz.
Corsair selected Samsung TCCD chips for absolute best performance at the top and they succeeded in reaching this goal. The compromise was a bit less performance at DDR400 - at least with the modules that we tested. However, we suspect that the timings used by DFI are not the best match to this Corsair memory, since regular TCCD memory rated at DDR400 outperforms the Corsair at the top - results that are the opposite of what we have seen on other nVidia chipset boards. It looks as if Corsair and DFI could squeeze more performance from this combination with some tweaking.
It is interesting in these test results that the faster 9x303 (2.73GHz) cannot match OCZ VX at 2.67GHz. However, at 2.8GHz (10x280), the Corsair TCCD can roughly match performance of VX at 2.67GHz. It is clear that faster 2-2-2 memory timings of the OCZ VX do matter when it comes to performance.
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adg1034 - Tuesday, April 19, 2005 - link
Wesley- could you do a follow-up with the "Value VX"? I'd love to see how that does.Gogar - Friday, April 15, 2005 - link
I'm wondering how a 3000+ would perform in the used setup with the OCZ Plat rev2. Assuming it can reach the MHZ, would it really be the same as a 4000+?JoKeRr - Sunday, April 3, 2005 - link
#50, pretty sure A8N SLI gives Vdimm upto 3V.ISS - Saturday, April 2, 2005 - link
No doubt OCZ VX memory is cool. However, there is 1 major point to consider which I don't think anandtech did mention.Whats the long term effects of pushing running 3.5V on A64. I have read from forums that some users ended up with dead CPUs after pushing high memory voltages. I am not sure but I guess they have a dead memory controller. Can A64's on-die memory controller handle 3.5V Vdimm for prolong periods? Such as 3-6 months or even longer?
AMD did mention before that running high Vdimm may damage the CPU and void the warranty though. Also, you would have notice that literally all board manufacturers other than DFI limits the Vdimm to just 2.85V.
cryptonomicon - Thursday, March 31, 2005 - link
man, i wish they included a sweet pair of BH-5 in all of their mem tests (one of the 280+ mhz pairs 2225 ~3.3-3.4v) just so i would have a point of reference to all this NEW ram.NotoriousGIB - Thursday, March 31, 2005 - link
Ohh...last comment was for poster 26.NotoriousGIB - Thursday, March 31, 2005 - link
Thx for the comment, but I was already aware of that. Wesley, plz post your DRAM & Genie BIOS settings used in this comparison. If there are any other OCZ VX users that have busted 250MHz, please post your settings.Zebo - Thursday, March 31, 2005 - link
"zebo, i have no idea what you tried to just say "Don't worry about it just get the cheapest ram like Buffalo B-line /corsiar value and you'll be just fine. All this stuff is overated, overpriced and for competitive benchmarkers only.
ozzimark - Thursday, March 31, 2005 - link
#39-i've been through 4 sticks of ballistix. all of them can make it to 245mhz at 2.5-2-2-5, which is the limit of my memory controller. i think inconsistancy is a thing of the past now.
i would try to prove you wrong on your second point, but i'd need a new cpu for that :(
Teetu - Thursday, March 31, 2005 - link
is there anyway I get anand's complete settings for the ballistix ram?i know with the older bios DFI recommended bank interleave off, but has that changed with the 3/10 bios?