i have recently purchased the 780ti sc with the stock heatsink fan. it runs amazing at 5k supersampled on gta iv. yes i know gta i is poorly optimized but every test i do always comes back to the gpu getting about 90 percent load. and everything else is very low 45% or less consumption.. i purchased this to get high resolution while playing gta iv and the framerate at 5k get me about 35-40 frames but at 7k it gets me about 15-25. my goal here is to get about 30-40 frames or more with whatever gpu i buy. my game runs and runs at all high settings the problem now is the frames at the resolution. so what should i do. return 780ti sc 3gb. and put my gtx 680 4gb back in and just sli another one?