Test Setup

Performance

In the first test we evaluate how these modules do at their default settings of 4-4-3-10, to establish a baseline performance value. At those settings we increased the clocks as far as possible to find out how much overclocking you can get out of the box.
The next three tests show how well the memory responds to different voltages at the CL5 setting. The frequencies shown are the maximum stable clock at this setting. As you can see the overclocks scale very nicely, the more juice you give the memory. The same is happening for the CL4 and CL3 scenarios. Please note that we had to run the CL3 tests at 3-3-3-4 because 3-2-2-4 was extremely unstable, the memory only booted with 2.25V+.
I find it very important to point out that the memory can run DDR2-800 MHz @ CL4 at 1.8Vand that you can reach DDR2-1066 @ CL5 with about 2.30V. With a bit of tweaking you can probably get it to run DDR2-800 @ CL3 but it will require a lot of voltage.
These different timings gives you added flexibility in situations where you want to reduce the clocks a bit and tighten the timings.

After looking through the benchmarks you can see that maximizing CPU clock is the most important factor when it comes to performance, then you should optimize memory speed.





This graph shows you at a quick glance which clock frequencies you can expect at which voltage. Please note that each individual module overclocks different, the results here can only be seen as an indicator of performance.