This is the thing. When you start pushing the core up, the power increses considerably. with a 2011 CPU @ 1.495 volts and 2 680's, I can pull 1150W from the wall.
Thats just plain greedy.

The most I have managed with my nvidia setup was 1032W at the wall. With a pair of HD 7970s on my other rig 910W.



