What else can I do to make ARMA 2 OA run smoothly?

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8 core 3.6 ghz

8 gig ram

gtx 450 1 gb

I figured my computer could handle this game quite well. One thing I have noticed that even if I drop the video settings the from low or high I only lose like 2-5 fps. But that doesnt matter when I get only 15-30 fps. What is causing my pc to not run this game correctly? I already use these tweaks:

running as an administrator (I turned this off from CP)

nosplash -cpucount=8 -exThreads=7

Post-processing to Low


rendered frames ahead

Game process priority - Set it on High

Closed open background windows

Updated latest drivers

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My old GTX285 had the same framerate @1920x1200pix so i just swapped it for a GTX580 and all is better now. How many "rendered frames ahead" you have? This seems to make quite the differance when it comes to performance im using 1 or maybe try 3 and 5. Also try the "performance mode and single display prio mode" in the NV driver config.

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