Hi guys, recently installed the 1080ti ftw 3 into my system, specs are: i5 4690k @ 4.5 on liquid, msi krait edition sli mobo & 16gb of ram. i am getting 40fps at 4k on ultra on rainbow six siege, benchmarks online show 70fps. every other game runs perfect. i have ddu on drivers and also done a fresh install of windows but same problem. any ideas?