My Asus GTX 770 Direct CU II GPU seems like it isn't performing up to specs. I get only 35 fps on GTA IV for example on a Dell 1920x1200 monitor. I have an i7 3770k with 16gb 1600 mhz ram and a 256 Samsung 840 Pro SSD. I have tried overclocking the GPU however it still doesn't seem to increase...