Hi, i have Sapphire R9 280X Tri-X OC 3GB GDDR5 384-Bit. It recently performing bad for some reason. I've tried 5-6 different drivers but can't fixed this problem. First of all, i've been getting 60 FPS on V-Sync on GTA V(Very High, AF X16, RMSAA X8, FXAA ON, MSAA OFF, 1280X1024) at %40-50 GPU...