interesting end to the vrzone review: "When our Radeon HD 6970 was overclocked to 950MHz core and 1450MHz memory, we threw Furmark at it again. Interestingly enough, our power meter recorded an increase of just 2W. That's not quite possible, isn't it? Your thoughts?"
also note the power draw differences of the 580's in some reviews. In HardOCP's they have the GTX580 drawing just shy of 100w more than the 6970 while in vrzone the difference is only about 10w or something.

