my specs:
i5-2500k 4.5 GHz
8GB DDR3
6970 Crossfire Dual GPUs

playing in 1920x1080 with DX11 + high res texture ALL SETTINGS ON ULTRA

i get very poor performance - there are times when it is 60 fps solid but there are a lot of times when the framerate drops to 45-35 fps. Sometimes even down in the low 20s when its get real choppy. I assumed that dual 6970's would never see a dip below 50 fps. I have the LATEST drivers and Crossfire Profiles installed from AMD.

Is this is an engine issue? a driver issue?

Anyone who has a similar setup, can you please comment on what type of performance you get