find the bottle neck
 

I just got UT3 and its nice but I figured my system would run it a bit better than it does. Im getting an avrage FPS in the 20s with a lot of things turned down or off. Also there are horrid spikes, upto 60fps and down to 11fps. Its not stable at all.

Specs:
X1900XTX stock clock running 67*C idle 77*C max loaded
P4 3.4ghz running in the high 50*C range or low 60*c range under load
2gb dual channel Corsair XMS DDR2 4-4-4-12
Asus P5AD2-premium mobo
SATA HDDs
350watt PSU

Im not too sure whats holding it up or if anything should be but my frames seem way low.

Thanks

woah cool snow... Are you using vista?

no xp pro sp2

looks like your cpu

just for haha's I turned everything up with the in game settings and the res to 1280x1024. Its actually a lot smoother in a bot match. Consistent mid 20s for frames. I did turn frame smoothing off tho. Can someone explain how I went from the lowest settings and crazy spikes to the highest settings and smooth FPS, low but really really smooth.