We measured the power consumption of our entire test system at the wall while loading the CPU using Prime95 and GPU using FurMark. We recorded results with the system at reference clock speeds and when overclocked to 4.7 GHz.
These results are exactly what we'd expect from our test system.
I used one of these boards recently. well not the same board, but an asrock Z77 board and the fact they put in all those automatic overclocking features is better than anyone elses. I dont think ASUS do that do they? you are expected to have good knowledge of the hardware to get good boosts.
ASROCK are in many ways leading the path IMO.