thanks for the link. it would have been nice if they would have compared ddr333 at various latencies to ddr400 at various latencies. i know when i ran my laptop with the ram at ddr400 cl2.5 i could notice the diff over ddr333 cl2.5. also it was faster going to ddr400 cl3 from stock. when going to ddr400 with either latency rightmark memory analizer showed about a 20% increase in bandwidth and a 15-30%(depended on oc, CL, and spd) decrease in latency cylces, but i have no idea how much performance increase that is in real programs. my experience shows that going from cl3 to 2.5 didn't change much, so i don't know if it is worth going from 2.5 to 2.