Is it possible that because of my PowerSupply (Thermaltake TR2 600Watt) having a 12V rail of only 22amp, and NVIDIA recommend minimum a 30amp 12V rail for the GTX 660Ti that my Video card cannot perform as it best?
Ok now i have try the SINGLE PLAYER Campaign of BF3 and i'm getting around 50-60FPS all Setting ULTRA and 1680x1050, but in Multiplayer i can't had more then 10-15FPS... where's the problem with Multiplayer ?
The problems your CPU. Battlefield 3 multiplayer kills a dual core. You'll need a quad core at least to make things smooth. If you're strapped for cash a Q6600 can be found for £60 on ebay and that'll make things smoother.