I guess other then a number crunching business environment, my overclocked 165 opteron to 3ghz on a DFI board with 4 gigs of ram still suites my needs after 2 yrs. I just swap out my video card every once in awhile. I'm quite sure that if Win7( ahem Vista sp3) is as lean and mean as MS says, then I'm sure that my system would also see an improvement in speed, unless their is some coding in the OS that if it sees some older DDR then it will throttle down the speed. Wouldn't be the first time that has happened and won't be the last.

Cheap DDR2 Makes Rebuilds Possible, in Retail Market. Yet, Theres NO Doubt that some better advantage is in ddr3, if not just to lead to DDR5. If SSD take Over Cpu/Gpu/Memory role by say, Oh, 2013, Its important to get these Machines Built Today. SteWie Drashek