When i first started overclocking, the FEAR benchmark was one that I used. I went from an athlon 64 3000 1.8ghz to 2.2ghz then an athlon 4000 2.4 to 3.0ghz then an athlon x2 2.0ghz to 2.6ghz and it never made any difference to FEAR benchmark. On my current setup of E8500 4GHz 8gig RAM and 4850 512mb at 1680x1050 my max FPS is about 140 (i think, not got it installed just now) but my lowest IE the explosion was about 35-40. Even so, I can play the game start to finish with v-sync on and get 60fps full stop.