Guys, im having low fps on my r9 280 x vapor x, my cpu is a fx 6300, corsair cx600m, msi board, 8 gb ram. i just changed psu, i had thermaltake 500w, thought that was the problem, but nothing!!!, i play @1080p crysis 3 and getting like 20 fps constantly. dont know what to do, help please!!!. i see people with the same pc and getting like 40, same with bf4, ac4, etc.... thanks. (fx6300 stock, evo 212)