I'm pretty sure you don't need a 780 Ti to get 60 FPS 1080p if you change the AA to a MLAA style AA anyways, a 770 would be able to handle that easily and the 4GB version only costs like 360-370 USD which would already blow the PS4 and X1 away. You can also software OC the stuff without voltage increase if they are built well enough for more performance as well.