Hi, I am looking to upgrade my GPU to a nvidia 780 ti or a radeon r9 290. My question is, at my current processor, will it be worth the extra $200 for the 780 ti plus the PSU, or should i just get the 290. If I get the 780 ti, i don't want to have it "bottle necked" to the point where i should just get a 290 or 290x regardless. My prospective game to play at the moment is Watch Dogs, and i want to try to run the game on ultra or high at 60 fps. I'll appreciate any suggestions that you guys can give me. Thanks!