Power, Temperature, Noise
Nvidia has done an excellent job at balancing performance against noise. The upshot is that, even with the monstrous cooling on top, the Inno3D card draws the same power as a partner RX 480 - a GPU a few rungs down the performance ladder.
Massive cooler? Check. Good temperatures? Check.
We've seen just how capable this iChiLL X3 cooler is previously. Taming a lower-power GTX 1070 is clearly no problem.