OCZ PC2-5400 DDR2 667Mhz
9. Update 1
We repeated most of the tests in order to find the speed limit for the OCZ PC2-5400, using once again our Pentium 4 530 3.00GHz system.
The maximum overclocking speed we managed with our CPU was 3.93GHz with the memory running at 698MHz. Its stability was confirmed with Memtest86+. The memory couldn't go any higher as at 701MHz, Memtest86+ reported errors. We then tried to increase the timings from 4-4-4-8 to 5-5-5-15 but there was no change. The voltage for the modules was set at 2.2V in all cases.
We then repeated some of the benchmarks in order to find out the difference in performance.
| 1000/667 | 1050/698 | |
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The PCMark04 score increased from 6148.0 to 6571.0.
| PCMark04 Memory Test | 1000/667 (MB/s) |
1050/698 (MB/s) |
|
| Raw Block Read - 8 MB | 7384.6 | 7867.9 | |
| Raw Block Read - 4 MB | 7738.0 | 8182.1 | |
| Raw Block Read - 192 KB | 29522.7 | 30924.3 | |
| Raw Block Read - 4 KB | 49422.8 | 51953.7 | |
| Raw Block Write - 8 MB | 5066.0 | 5299.3 | |
| Raw Block Write - 4 MB | 5067.1 | 5299.5 | |
| Raw Block Write - 192 KB | 12684.0 | 13261.0 | |
| Raw Block Write - 4 KB | 12721.4 | 13298.0 | |
| Raw Block Copy - 8 MB | 2520.9 | 2827.9 | |
| Raw Block Copy - 4 MB | 2741.6 | 3130.3 | |
| Raw Block Copy - 192 KB | 9936.1 | 10379.4 | |
| Raw Block Copy - 4 KB | 12723.0 | 13289.6 | |
| Random Access - 8 MB | 4239.8 | 4591.1 | |
| Random Access - 4 MB | 4220.1 | 4590.9 | |
| Random Access - 192 KB | 7380.3 | 7640.7 | |
| Random Access - 4 KB | 12642.2 | 13229.9 | |
While with Sisoft Sandra 2005, the results changed as follows:
| 1000/667 | 1050/698 |
| 5816 |  |
| 5833 | |
| 10665 |  |
| 11.3 |
Finally, the framerate in Half Life 2 was raised from 134.05 to 143.5 fps. While the memory is not directly responsible for this, the higher overclocking speed attained with the CPU is, which is in turn related to the memory.
Excellent and stable performance...
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