lol ran this for some lols.. I know I get good frame rates in this game as it's not that demanding tbh...
Pasting a DXdiag result won't do my rig justice really...
Here it is
Foxconn Blackops board
Q9650 @ 4.275Ghz (9*475/1.325v)
8GB G.Skill DDR3 @ +/-1800mhz (4*2GB)
4870x2 @ 1500core/5000mem (hardwire voltmodded

)
X-FI Titanium (The PCI-e fatal1ty one)
Rest of my rig is kinda irrelevant tbh..but it's got a couple of 300GB VR drives in RAID0, couple of DVD drives and the whole thing is watercooler by a single 360mm rad

Average FPS was around 250 but peaked at 300.. (1920*1200)
I was lucky to get a VERY overclockable reference 4870x2.. I think both the chips are golden or something... I also held the world non LN OC record for a Q9650 at one point at 5.05Ghz

but that was some time ago now..