I just replaced my hd 7770 with new rx 560, i have fx 8320@4ghz , i mainly play League of legends,hearthstone and other not so demandig games.The problem is i get worse performance on the rx 560 than on the hd 7770, i installed new drivers.I play on 1080p resolution.Version of rx 560 is gigabyte gaming OC 2GB, and my psu is from coolermaster 600W