The better drivers thing is a nonsense now. Nvidia's are more feature rich though.
Your frame rate does seem odd
Could it be the PhysX effects dragging down your 770 in Borderlands 2? They'd be disabled normally on an AMD card.
Could also be heat or a bad card if you're getting glitches.
Thanks for response.
I have seen these graphs before but it's hard for me to draw conslusions because there is no minimal fps here.
I was searching on google yesterday and there are some people with similar problems but either there is no answer to that or it is not helpful in my case.
I have V-Sync on and I have 60fps for 95% of time so it's not that bad but I was expecting steady framerate especially after reviews and benchmarks.
There is also no difference with physx set to low or high.
Temperatures are OK and card is OK(no glitches outside JC2 and that JC2 glitch from what I found is "normal" in some cases for Nvidia cards)
What is weird though is that my GPU usage is at around 70% in Borderlands 2 even after framerate drops and I don't think that mu cpu(i5 3570K) is bootlenecking anything here.
I asked here because I thought that maybe someone had similar experience.