uhh... the i7 platform is more scaled for modern gpu's.
And if u scale your gpu's... meaning xfire or sli.. the X58 platform is the only way to go.
Your Q series on a P45 platform is already bottle necked.
What do you mean you dont have a gpu bottleneck?
A gpu that powerful has shown improvement all the way PAST 4ghz on an i7.
Actually rule of thumb in gaming.
GPU = Min frame rates..
CPU = MAX frame rates...
This is why his 480GTX is bottlenecked on P45 platform.
There was a thread in video here where a guy tested his HD5870 with a Core 2 and a Core i7. Can't remember who it was or find the thread. (found it:
http://forums.anandtech.com/showthread.php?t=2064948)
At stock the Core 2 had terrible minimums compared to the i7, at 4GHz, both had the same minimums.
The HD5800 series typically has worse minimums than the GTX480, but with the Core 2 the minimums were due to the CPU.
Metro 2033 is especially indicative. 3GHz Core 2 Duo had average of 22.5fps, 3.9GHz had an average of 22.8fps, pretty much the same. Minimum was 6 vs 11fps.
Xbitlabs also did a roundup that showed the same, but again I can't remember the link, also IIRC tested AMD and showed that to be worse than i7 in minimums as well.
When you overclock everything to 4GHz, the CPU typically no longer becomes an issue, but at stock speeds there can be a significant difference in minimums.