DDR2 Shootout: Corsair vs Kingston
 

Corsair's TWIN2X1024-5400C PRO modules were slightly faster then the Kingston modules in a few of the benchmarks we ran, but the Kingston KHX5400D2K/1G modules were able to run at a higher clock speed with more aggressive 3-3-3-10 timings.

http://www.hothardware.com/viewartic...leid=595&cid=5