ops wrong selection...
anyways, i do have a i7, and as said before, the thign is so fast that any amount of ocing feels like nothing... recently i was running at 4 ghz, but then i went to stock voltage and got it to 3.4, and it did not feel any slower (about ~8-10 TFLOP drop in linux if i remembered correctly), and the fans on my TRUE isnt running anywhere as fast.... Then about the Ocing the 5870... that didn't really chance anything as crysis warhead was playable on enthusiast at 1920*1200 before the oc, and with a slight 875/1200 oc it was like meh....
on the other hand, with my old 7900GS, every mhz seemed like a improvement, even back when i used 1280*1024, and every mhz out of the a64 3200 seems to speed windows up by a lot. that could be just perception, or remembering the good parts of the old rig, but hey it just feels that way...
now the old thing is running undervolt at stock speed with a SI-120 and no cpu fan on it and being used by my parents (i guess the 7900 has to be bored rofl), guess it was a good run lol, a fitting retirement for these old parts