How come the GPU voltage under 3D load in all your 7770 reviews is so low? I measured the voltage on 2 different 7770 cards (Sapphire and Powercolor), non-overclocked, 1000Mhz GPU clocks and it was ~0.8v. in idle and ~1.2v. under Unigine Heaven. Both cards were unstable even at 1.15v.