AMD FX 8150 (8 cores 3.8GHZ)
ATI 6970
Windows 7 and XP (two different PCs with the exact same hardware)
8Gigs DDR3 1600MHZ ram, nowhere near the maximum used
Arma2 and OA both on an SSD
Everything on lowest settings
There are no bottlenecks. GPU usage ~20-30%, each core on the CPU doesn't pass 50% usage.
Benchmark: ~100FPS
Benchmark1: ~89-98FPS (98FPS after trying every combination of optimization advice)
Benchmark2: ~20FPS. Can't be arsed running this all the way.
In cities (Chern) I get ~20-30 FPS, needless to say I'm upset, both GPU and CPU show low usage (see above).
Latest beta patch (though this is irrelevant, the patch only increased my FPS by 1)