Lets be honest, guys. Does anybody believe that a GK104 can be much faster (say, more than a 5%) than a 7970 while having LESS power consumption? I don't believe in miracles whatsoever, and this is something that has never happened before, not accounting for failures on either side. Either way, performance/power-consumption is more or less even within the same node for both brands (provided there are no mistakes, such as GF100 or R600).

Keep in mind that Pitcairn has an efficiency similar of 7970...which means that none of them have weird efficiency and, thus, it should be kinda easy to extrapolate the max performance of gk104 based alone on such numbers. I frankly expect around 7970 numbers with...MAYBE, a tad of less power consumption. But expecting to take less power and perform 25% better...well, they say that its free to dream