I overclocked my X700 yesterday. And the results are quite surprising. Here is the mod and speeds:
Mod:
Kingwin AWC-1 with VGA water block
8 x ramsink for memory chips
Speed:
Stock engine: 410
Stock mem: 417
Overclocked:
Engine: 510
Engine: 450
I know if I can get better memory cooling I can push mem speed even faster
