Whenever we plan a new test at THG, typically most manufacturers will send us their latest and greatest products. More often than not, we receive custom or prototype models that users simply can't buy at retail outlets. That's why we asked all companies to ship us only those memory modules for testing that consumers can actually buy at retail outlets. All modules were subjected to the same series of three tests, so that we could provide optimal buying advice.

In our first test, Memory Test DDR2-667, all candidates were tested and measured using default installation settings. Only in the second test - Overclocked Latency Times - did we tighten memory timings. In the third test memory was subjected to the maximum possible clock rate.