Not sure if it's the card alone, and I also hate to tell you your system is not even mid end, sorry.
My experience was that a 4650 is way to weak for IL2, however the 260GTX is solely bought for this purpose was an overkill, a 9800 would have been enough.
I see the main prob in the CPU area - IL2 uses only one core, so a dual core will do no good, what you you need is a least one fast core, if I remember correctly the peak is somewhere around 3.0Ghz.
(I actually can confirm that, I got almost no fps gain when I switched from a X2 6000+@3.0 to a X4@3.6)
I did notice a difference from 4000+@2.0 to the above mentioned 6000+ though.
BUT: Even with with a 2010 $3k PC you will get the stutters over big cities, those are caused by to the old code the game is programmed in.
+1 on the config.
Last edited by swiss; 11-13-2010 at 02:02 AM.
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