I've got the 1080 and even on lowest settings it's giving me issues. No other game does. Definitely something on their end. Sucks because I just bought this game and all I've had were issues..
I have a GTX980Ti and have no problems whatever so I'm not sure the software can be blamed. If it runs smoothly for anyone the code must be ok? I'm not sure how it works under the covers so maybe code-work can adapt to various systems better. I think my CPU has 28 lanes (socket 2011) and I'm running 48Gb DDR4 ram. The only glitch I experienced was getting trapped in the spawning booth after a death and had to restart the game to get it to work.
i7-5820K @ 4.2Ghz, water cooled, Asus X99-Pro USB 3.1, 48 Gb DDR4 2400, Samsung 950 pro M.2 SSD, GTX 980 Ti SC, 750w psu