The Return of 2-2-2: Corsair 3200XL & Samsung PC4000
by Wesley Fink on June 15, 2004 9:00 PM EST- Posted in
- Memory
AMD Test Results: Samsung PC4000
Rather than just test memory overclocking on the Socket 939 Athlon 64, we compared the impact of memory speed on stock performance. The 3800+ runs at a speed of 2.4GHz with a stock ratio of 12x200. Performance was compared of the standard 12x200 to 10x240, which is also a processor speed of 2.4GHz. With the CPU operating at the same speed, the only influences on performance are the higher memory speed and the higher bus multiplier.| Standard CPU Speed and Variable Memory Speed Samsung PC4000 (DDR500) - 2 x 256Mb Single-Bank |
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| Benchmark | 3800+ (2.4GHz) 200x12 4xHT 2-2-2=10 |
3800+ (2.4GHz) 240x10 4xHT 2.5-3-3-10 |
| Super PI 2M Places |
85 seconds | 83 seconds |
| Quake 3 FPS |
453.0 | 460.0 |
| Sandra Memory Test Standard Buffered |
INT 5995 FLT 5948 |
INT 6671 FLT 6584 |
| Sandra Memory Test Standard UNBuffered |
INT 2702 FLT 2792 |
INT 2914 FLT 3068 |
| UT2003 FPS |
Flyby 290.0 Botmatch 119.6 |
Flyby 285.8 Botmatch 120.5 |
| Aquamark 3 Standard Score Run |
46,297 | 46,210 |
We were able to reach overclocks as high as DDR490 at 2.5-3-3-10 timings with Samsung PC4000 on the Asus A8V Deluxe. However, we were not able to reach the specified DDR500 speed on the dual-channel Socket 939 Asus A8V Deluxe.
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Pumpkinierre - Tuesday, June 15, 2004 - link
Good article again, Wesley. Pity its not DDR500 at 2-2-2. I'm still holding off upgrading. I wouldnt trust that VIA chipset with the Corsair RAM. Plenty of people run their memory outside SPD specs withot problems. And don't give up on the i875 yet. There's a lot of issues with DDR2 and 915/925. I notice that ABIT have brought out a Sckt775 865 mobo. Hmm I wonder why?Also the P4/i875 seems to equal or better the S939 a64 in unbuffered sandra which I wouldnt have expected because of the on die a64 mem. controller etc.. Then in the buffered test the a64 clearly gets the upper hand which again is a suprise as many of the buffers are associated with MMX/SSE/SSE2 where the a64s are supposed to be weaker. I only trust the unbufferd tests but this may explain the fact that the FX chips beat the P4s on memory bandwidth but were behind on the bandwidth intensive encoding tests.
In the one test (Samsung mem.) where you test the a64 at different bus speeds (200&240MHz), the gaming results were equal or worse in the game tests despite an ~85 increase in mem. bandwidth ! Unfortunately you had different memory timings but it reinforces the importance of latency reduction rather than bandwidth for gaming performance.