Just wondering if anyone else has overclocked their system (CPU/GPU/RAM) specifically to help run ArmA 3 and what results you had.
As for myself, I've seen HUGE gains after I OC'd my CPU and RAM. Brought new life to my old system. Now reconsidering if I need to build a new PC for ArmA 3.
Intel Core 2 Quad Q9650 @ 3.0GHz - OC'd to 4.0GHz (Got the biggest FPS gain from this, 10-15 more FPS)
8GB DDR2 RAM @ 800MHz - OC'd to 1066 (Noticeable gain of about 5-6 FPS after increasing the clock speed of my RAM)
GTX 580 1.5GB - Had the smallest gains after OCing the GPU, pretty much not worth it due to stability issues.
Also running ArmA 3 from a 128GB SSD.
I haven't had a chance to run a real benchmark on ArmA 3, but the Arma 2 benchmark #1 went from 31-34 FPS to 55 FPS.