Got a GTX 660 ti in my rig at the minute but it's displaying artefacts and there's been a massive drop off in performance, with it regularly locking up now. Need advice on whether to go with a EVGA 780 ti or a normal 780. I have one monitor I use for gaming on (1920x1080) and another panel for watching films etc. (1920x1080). Any help and advice would be very much appreciated, thanks in advance,
Ash
Ash