look above lol fan speed idlig 30%, under heavy load(furmark) 39%-45%. GPU never get more then 70c warm.Interesting, it worked on my 2900 (although an earlier cat), I guess this has been "locked out" now with current Cats. What is your fan speed?
I clocked my cpu to 3500 without a singel fps upgrade in crysis benchmark. That was indeed strange. So i guess its not your mhz but something else. I have P35 chipset, ie pce 1.1. Maybe that or something.
how much memory you got btw?