A gtx 670 power edition, and a 3770k. Turning off vsync doesnt help. I was trying to get 120fps for 3d vision. Do you mean like a physical problem with the gpu? The fps goes down with the gpu usage %. So it could be at 80 fps with around 60%, at 120 fps 99%, and sometimes drop down to 60fps with 40% usage.
Does it look like a cpu bottleneck in the pictures?
If you have a 3770k, you don't need to worry about ram bottlenecks. That is one of the strongest cpu's out there for gaming. it probably is just a crysis problem. Beta's can have a lot of weird problems.