Originally Posted by DBEAU
Post processing just makes everything blurry for me and it eats about 10 fps so I don't use it.
My "quality" settings keep reverting back to normal when I restart the game but the performance is best there anyway. I do, however, disable clouds.
Textures maxed, Normal AA, Alpha to coverage maxed, Ambient occlusion off, HDR low, edge enhancement disabled.
I think that's everything. Still in the cities I get 25-40 fps and up to 70 in open fields away from cities.
I've noticed texture settings have no affect on fps. In fact, the only settings that seem to impact FPS significantly for me is "object detail", "Ambient occlusion", and "post processing".
Remember the Arma II "Real Virtuality" engine is completely broken and HEAVILY CPU reliant. A higher clock speed, say 3.2 to 4.2 is going to help you much more than going from, say a 660 to a 680.
Also when you turn settings to Low it shuffles them off to be handled by the CPU which is bad since its doing all the heavy lifting already. Keeping things at Medium is your best bet with a low end CPU that way it shares some of the responsibilities with the GPU.
To show how broken the engine is do some test. Setup an Overlay to show your CPU and GPU usage. You will almost NEVER go above %50 CPU and GPU usage. It has something to do with how the server speaks with your character and its environment. There is a MAJOR bottleneck there.