Auto (or 2-3 if experiencing stuttering). GPU Settings This is how you play God of War 3 on PC - RPCS3 Guide
RPCS3 supports XInput (Xbox controllers) natively. god of war 3 pc emulator
Because God of War 3 pushes the PS3 hardware to the brink, it requires a robust PC to emulate properly. Auto (or 2-3 if experiencing stuttering)