Don't think it's a big advantage unless we're talking really fast FPS...and even there I'd argue that the competitive advantage is less than people would think.
The one tricky bit is games based on the quake engines (So CODs). Thanks to some dodgy programming logic the framerate has an impact on in game abilities. As in you can jump higher and run faster if you tweak framerates just right (there are magic fps numbers). No joke. That's for PC obviously...consoles you can't tweak sht.




