Had performance issues since I got my 780ti back in June, never been much of an issue as it only chugged a bit with Thief and the Vanishing of Ethan Carter both pretty much maxed out. Playing Alien Isolation in the Oculus rift has been a big problem though as if the game drops below 75fps an Earthquake happens in the Rift. Been speaking to people with same specs on reddit and they are apparently playing the game with a butter smooth constant 75fps.
I have Just used a Hardware monitor to see where the bottleneck is if any and my cpu/gpu are never going above 65% usage and the temperatures fine but OV max limit and Voltage limit jump to 1 when the games running. I just googled this and apparently that means your cards about to fry, yet my temps fine and My usage won't shift above 65% even when I need it to.
i74770 3.4, 16gb ram, 780ti 3 gb, windows 8.1
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780ti usage struggling voltage limit max limit