For some reason my Gtx 770 can play crysis 3 at 20 fps on ultra. It used to be able to play at least 60 fps.
System Specs:
Intel 3570-k
Galaxy Gtx 770
it looks like you need to turn down your AA to 0
http://www.bit-tech.net/hardware/2013/05/31/nvidia-geforce-gtx-770-2gb-review/5
what are the settings for your filters