Otherwise the processor is alright and the gpu is good too, but the prices of the 280x are elevated beyond what they should be right now. A 770 is slightly faster than a 280x so if they are the same price go with the 770.
Oh, well nevermind about the prices then. I currently am playing battlefield on a 280x and it runs ultra no problem, I didn't have any FPS monitor up but I didn't notice a change between high and ultra graphics. The 280x will be a great single screen card for a while.