a core2quad at 3ghz is more than enough for a gtx 470. It is extremely unlikely that it would be bottlenecked at all. Maybe in some rts strategy games, but for most games, no.
And yes, there would be a loss in performance if there was a bottleneck (but there won't be). The fps loss depends on how much bottleneck there is.
Yea same here, I reverted back to 10.4 because I actually lost a few frames. IDK what the deal is with AMD and their drivers, you would think that at this point in time they would have a fully working driver. To this date I still cannot get v-sync to run properly in BC2 as well as in windows. I get mad screen tearing upon bootup.
and also i've been told by the people here that it does bottleneck
i would say that a q6600 @ 3 ghz is equal to q9550 @ 2.8 ghz
EDIT: also keep in mind that 5850 is equal to 470.
a 470 is a lil better sometimes at different games
I have a Q6600 OC'd to 3.6 and it pushed my 5870 just fine, in fact, the 5870 performed just as good in my brother's system which has an i5 750 at the same speed. Your bottleneck has to do with something else...