1GB DIMMs: FAST 2GB DDR Kits from Corsair, Gigaram, and OCZ
by Wesley Fink on October 11, 2005 2:55 PM EST- Posted in
- Memory
Performance Test Configuration
The three 2GB kits were tested with the DFI LANParty nF4 SLI-DR Athlon 64 Socket 939 motherboard. Other components remain the same as used in the memory setup found in Athlon 64 Memory: Rewriting the Rules.
The A64 test bed includes components that have been proven in Socket 939 Athlon 64 benchmarking, such as the Socket 939 4000+, the OCZ Power Stream 520 Power Supply, and the NVIDIA 6800 Ultra video card. We also used an AMD FX57 set to a 12X multiplier for tests that required a Revision E type memory controller. The FX57 was adjusted to run at 2.4GHz, the same speed as the Clawhammer 4000+.
All other basic test conditions attempted to mirror those used in our earlier Athlon 64 memory reviews.
In past benchmarking, we have found performance of the nForce4 and nForce3 chipsets to be virtually identical, and we have found AGP and PCIe performance to be virtually the same in the benchmarks that we use for memory testing. Therefore, you can also generally compare these results to TCCD benchmarks in recent memory reviews.
With nForce3 motherboards, the fastest performance on AMD Athlon 64 was at a Cycle Time or tRAS of 10. However, the nForce4 behaves a bit differently with memory. We ran a complete set of Memtest86 benchmarks with only tRAS varied to determine the best tRAS setting for these memories, and found the best bandwidth at tRAS settings ranging from 5 to 8. Therefore, a tRAS setting of 7 was used for testing.
Test Settings
All AMD Athlon 64 processors are unlocked downward, and the FX CPUs are unlocked up and down. This feature allows a different approach to memory testing, which truly measures performance differences in memory speed alone. All tests were run with CPU speed as close to the specified 2.4GHz of the 4000+/FX53 as possible, with CPU speed/Memory Speed increased at lower multipliers to achieve 2.4 GHz. This approach allows the true measurement of the impact of higher memory speed and timings on performance, since CPU speed is fixed, thus removing CPU speed as a factor in memory performance.
The following settings were tested with the Mushkin Redline XP4000 on the DFI nF4 test bed:
The three 2GB kits were tested with the DFI LANParty nF4 SLI-DR Athlon 64 Socket 939 motherboard. Other components remain the same as used in the memory setup found in Athlon 64 Memory: Rewriting the Rules.
The A64 test bed includes components that have been proven in Socket 939 Athlon 64 benchmarking, such as the Socket 939 4000+, the OCZ Power Stream 520 Power Supply, and the NVIDIA 6800 Ultra video card. We also used an AMD FX57 set to a 12X multiplier for tests that required a Revision E type memory controller. The FX57 was adjusted to run at 2.4GHz, the same speed as the Clawhammer 4000+.
All other basic test conditions attempted to mirror those used in our earlier Athlon 64 memory reviews.
| AMD nForce4 Performance Test Configuration | |
| Processor(s): | AMD FX57 Athlon 64 at 12X Ratio (2.4GHz) AMD 4000+ (FX53) Athlon 64 (2.4GHz) (2.4GHz, Socket 939, 1 MB cache, Dual Channel, 1000HT) |
| RAM: | Corsair CMX1024-3500XL PRO (DS) 2X1024MB Gigaram 2GB Dual Channel PC-4200 (DS) 2X1024MB OCZ PC4000 1024MB EB Platinum (DS) 2X1024MB Mushkin Redline XP4000 (DS) 2X512MB Kingston KVR400X64C25/512 (DS) 2X512MB Kingston KVR400X64C3AK2/1G (DS) 2X512MB Mushkin PC3200 EM (DS) 2X512MB OCZ PC3200 Value Series (VX) (DS) 2X512MB OCZ PC3200 Gold (BH5) (DS) 2X512MB OCZ PC3200 Premier (DS) 2X512MB Transcend JM366D643A-50 (DS) 2X512MB Patriot PC3200+XLBT (DS) 2X512MB OCZ EL PC4000 VX Gold (DS) 2X512MB Corsair TwinX1024-4400C25 (DS) 2X512MB Crucial Ballistix (DS) 2X512MB OCZ PC3200 Platinum Rev 2 (DS) 2X512MB |
| Hard Drives: | Seagate 120GB SATA 7200RPM 8MB Cache |
| PCI/AGP Speed: | Fixed at 33/66 |
| Bus Master Drivers: | NVIDIA nForce Platform Driver 6.66 |
| Video Card(s): | NVIDIA 6800 Ultra 256MB PCIe, 256MB aperture, 1024x768x32 |
| Video Drivers: | NVIDIA Forceware 78.01Release |
| Power Supply: | OCZ Power Stream 520W |
| Operating System(s): | Windows XP Professional SP2 |
| Motherboard: | DFI LANParty nF4 SLI-DR |
| BIOS: | 7/04/2005 |
In past benchmarking, we have found performance of the nForce4 and nForce3 chipsets to be virtually identical, and we have found AGP and PCIe performance to be virtually the same in the benchmarks that we use for memory testing. Therefore, you can also generally compare these results to TCCD benchmarks in recent memory reviews.
With nForce3 motherboards, the fastest performance on AMD Athlon 64 was at a Cycle Time or tRAS of 10. However, the nForce4 behaves a bit differently with memory. We ran a complete set of Memtest86 benchmarks with only tRAS varied to determine the best tRAS setting for these memories, and found the best bandwidth at tRAS settings ranging from 5 to 8. Therefore, a tRAS setting of 7 was used for testing.
Test Settings
All AMD Athlon 64 processors are unlocked downward, and the FX CPUs are unlocked up and down. This feature allows a different approach to memory testing, which truly measures performance differences in memory speed alone. All tests were run with CPU speed as close to the specified 2.4GHz of the 4000+/FX53 as possible, with CPU speed/Memory Speed increased at lower multipliers to achieve 2.4 GHz. This approach allows the true measurement of the impact of higher memory speed and timings on performance, since CPU speed is fixed, thus removing CPU speed as a factor in memory performance.
The following settings were tested with the Mushkin Redline XP4000 on the DFI nF4 test bed:
- 2.4GHz-12x200/DDR400 - the highest stock memory speed supported on nF3-4/SiS755-FX/ATI Radeon Xpress 200/VIA 939 motherboards
- 2.4GHz-11x218/DDR436 - a ratio near the standard DDR433 speed
- 2.4GHz-10x240/DDR480 - a ratio near the standard rating of DDR466
- 2.4GHz -9x267/DDR533 - a memory speed achieved by only a few top memories on the Athlon 64
- Highest Memory Performance - the highest memory bandwidth and game performance that we could achieve with the memory being tested. This is rarely the highest memory speed that we could achieve. It is normally a lower speed with 1T Command Rate and tighter memory timings.
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woodspire - Thursday, June 29, 2006 - link
What happen if instead of using 4x 512 memory you use 2 x 512 and 2 x 1024. Same speed (PC-3200), same timing, and even same brand.Still acheving dual channel ?
qquizz - Saturday, December 10, 2005 - link
Sounds great and all but a query at Pricewatch brought up a blank.Where can you buy the OCZ PC4000 EB Platinum Edition
Hurricanesan - Friday, November 11, 2005 - link
I'm looking for 2Gb memories for my new computer.I had an hard time choosing between the Corsair 3500LLPro and the OCZ 1024MB EB Platinum.
This morning, I've noticed this test. Since the OCZ was able to go up to 500Mhz and I plan using an A8N32-SLI, the choice looked easy.
But a friend of mine pointed out an old story in which OCZ was giving very good sample to the press and lesser products in the shops. I've looked about that story and now it seems to me that OCZ is really unstable in its production and not very clean ... or used to be.
I would really not like to buy those memories and find that they can't stand their specification.
Since right now it seems that both the Corsair and the OCZ are not available in stores less that 2 hours plane from me, I have a week to make up my mind.
If anyone can help me balance one way or the other, please post.
KriegsMaschine - Tuesday, November 29, 2005 - link
OCZ is the best brand I'd say. I currently have Corsair Twinx C2Pro "2x512 ddr400 Cas 2.5" and it's good... but WAY TOO expensive for it's quality. You pay too much for the brand like you would by getting a cloth from a designer. OCZ have the best performance while having reasonable prices and quality stuff for Value, Mainstream and High-End. Their tech support is very good too, as all their products. My next PSU will be OCZ ModStream 450watts.Nice article. I was thinking these days about going from 2x512 to 4x512 with my Athlon64 since it's less expensive than 2x1Gb and generaly have better timing but after reading that 1T Command was impossible with 4 DIMMS... I changed idea!
What would had been nice for the review would had been some more real game benchmarks. I mean not old stuff like Quake 3 because who care to have +20fps when you already got 550! Some newer stuff such as UT2003, FEAR, BF2, FarCry, HL2 would had been a better choice. To me those SuperPi, SandraMark... means almost nothing. All I want when getting such expensive rams is more FPS in games. Comparing 2x1Gb in 1T Command vs 2x1Gb in 2T Command would had been better too because don't you think 2x512Mb vs 2x1Gb is unfair? 0_o
Shimmishim - Wednesday, October 12, 2005 - link
what the heck? no 2x1 crucial ballistix? wow. i have a set that can do 290 mhz 1:1 with 3-3-3-7 timings and only 2.8 volts.leexgx - Saturday, November 5, 2005 - link
do not think it was out then (or it was not sent to anandtech)i just got the Crucial 2GB DDR PC4000 Ballistix from overclockers and its less then £200 for this week only (norm £240) (got the A8N-SLI premium as well)
i good to see that Ballistix stuff can do that
i probley just set me X2 3800+ at 250 so me ram is doing the same (got it at 241 now on the cpu it norm runs at 200 so its an 410mhz oc {4600+ x2})
ricleo2 - Wednesday, October 12, 2005 - link
After some recommendations from the forum here, I just got 2 sticks of GSKILL PC4000 at one gig apiece to replace my OCZ 2 sticks at 512 Megs apiece in my MSI K8N SLI PLATINUM. After comparing benchmarking results, before and after, it was not even close. RMA already approved from NEWEGG.phidjit - Wednesday, October 12, 2005 - link
It's 1024, with 2-3-2-5 timings and runs at DDR433, it seems like it would have been a better comparison to the Corsair "CMX1024-3500LL PRO" (also 1024, DDR443, but 2-3-2-6 timings).Anyone seen benchmarks for the gigaram mach10000?
It looks like it could be a bargin.
phidjit
qquizz - Wednesday, October 12, 2005 - link
These are the type of articles I come to AT to get. Thanks Wes.znir - Wednesday, October 12, 2005 - link
Thanks for the information in the review. however, i think it would be good to see result of 4x512MB high performance sticks like the OCZ PC4000 VX.