This is a Profile i put together for my system since i have 2x 980's
i use sli compatibility bits (dx10 + dx11) 0x080000F5

I'm mostly putting this here so i don't loose the settings and have a backup
and FYI the Profile is in the archive all you do is import it or just not
be lazy and watch the video and find out what works best for you

if you do use this make sure you turn off TAA

most of the info is from this video, you should watch it.
found this video a wile back when i was looking up stuff about SKyrim SE and SLI