Originally Posted by ilikepancakez
wait wait wait. you have 3 120mhz and your 1 6870 plus 6850 can handle it!? i highly doubt that you can max games on the setup
That really depends on what he is playing and how his game config is set up. Anecdotaly I can say that going from 60Hz to 120Hz did provide a very noticeable difference in games. In my experience as long as you are getting 75fps or more you can feel the difference. Even on my rig, in BF3 beta I could feel a difference going from 60Hz to 120Hz. I'm running a 2500K @ 4.2 and a 6950 @ 840. YMMV, but I'm guessing his CF setup will do just fine.
Sidenote: most people are horrible pointers and clickers (fps'ers), so yeah, a switch to 120Hz won't make a damn bit of difference to the terribads out there. If you played like a sluggish fatty before, you will continue to play as a sluggish fatty.