OCZ DDR2 PC2-6400 CL3 FlexXLC Edition review
Author: Grga Curkovic
Date: 18 May 2007

Some two years ago DDR(1) memories were living through their best days, and one of their strong points were low latencies. CL2 modules were common thing among enthusiasts, and there were even some CL1.5 modules out there. In transition to DDR2 due to new technology and increased capacity we lost those low latencies and were stuck with some nasty CL numbers for a while. With OCZ DDR2 PC2-6400 CL3 FlexXLC Edition we can "announce" the new age of low latency modules, this time in DDR2 envelope. Let?s take a look at their performance.
These modules are a part of FlexXLC series which means they can be air or water cooled. DDR2 did lower the operating voltage when compared to DDR1, but the capacity and speed doubled so DDR2 modules ended up with higher power consumption than DDR1. Add to that the fact that some extra juice is needed for aggressive timings and it?s clear you need to come up with a new way of cooling. Manufacturers optimized the heat sinks, increased their size, came up with special fans for memory modules to compensate for this, but for true enthusiasts there is only one way to properly cool, and that?s water. The modules are specified to work at DDR2 800MHz speed with 3-4-4-15 2T at 2.4V on 680i SLI boards. Non EPP specs say DDR2 800MHz 4-4-4-15 2T at 2.1V. The modules are covered with Extended Voltage Protection so running them at 2.35V +/- 5% will not invalidate the warranty.

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