Legit Reviews managed to get a hold of 2GBs of Kingston’s PC3-11000 HyperX that runs 1375Mhz @ 7-7-7-20 and 1.7V.  They also tried Corsair’s PC3-10600 XMS3 DHX, 1333MHz @ 9-9-9-24 and 1.5V.  They tested their DDR2 modules on an ASUS P5K Deluxe and the DDR3 on an ASUS P5K3 Deluxe.  It seems that even with these high speed DDR3 modules, there isn’t any overwhelming gain to be received by switching from DDR2.
“We set out to see if there was a significant difference between DDR2 and DDR3 memory on both of the Intel P35 Express based ASUS motherboards and found that there really isn’t. Right now there is no clear call as to what would be better for gamers and enthusiasts as it depends on your tastes. As with all new technology it will only get better as time goes on and with memory companies hitting ~1,800MHz on the initial 512Mb DDR3 IC’s it shows great promise for the new memory type.”

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