I have the ASUS R9 280X - and it's been working great in the 6 months I have had it. For the past two weeks, about once a day, my games (namely PAYDAY 2 and League of Legends) will freeze in place, as if I am looking at a screenshot, and resume play again. I reformatted to no success.
8 gb corsair ddr3 ram
asrock z77 extreme 4 motherboard
corsair hx 750w psu
asus r9 280x 3gb