FX 8320 + R9 270x

It will run highest settings on playable FPS, my computer is not as powerful as that and I can run anything on highest settings!

Overclock the CPU and it will run anything you want (except Day-Z Standalone) on highest settings with playable frame rates.
 


lets say im rocking 45 fps on my current right what percentage of fps increase should i see
 


With an 4.3Ghz fx6350, and an pretty good overclocked 270X, I can get 60ish fps on high in Battlefield 4.