I got a Steam refund after 45 minutes of trying to get it to run at an acceptable frame rate.
Hey stringo. Wunkley here with your friendly neighbourhood SLI fixes
This game is a bitch to get running right. I got obsessed and wasted a few hours, but here is THE solution.
(System is basically same as yours as you know, x99, 5930k, SLI 980Ti and x34 Gsync)...
1. Do not run in dx12. There have been a few updates recently but even though The framerate can be 'higher', the movement is horribly jerky and has terrible frame pacing issues.
2. Run in dx11 mode and - most important - use nvidia inspector and change the dx11 SLI bits to those for 'overwatch'.
2b. Do not use any MSAA. It cripples performance. Use the in game temporal aa and then the sharpen filter. I actually found this ok, but a bit meh in places so I made a simple reshade/ sweetfx profile with smaa, slightly milder sharpening and a few lift gamma gain tweaks to darken the shadows but not crush any blacks or lose details.
3. After this you can set most in game settings to the max. However, the ONE setting that continues to causes stutter problems is the texture setting. Took me ages to find out. Running at ultra, even though I monitor texture usage in game and it's within 6gb use most of the time, ultra textures causes terrible mini load stutters. Change the texture setting to very high and bang! Really smooth most of the time with far less hitching. I also cannot tell the difference between the 2 in game!
So, this is the first game that I haven't been able to run at max texture settings using 980Ti's. It's either a bug, or this is the start of 6gb not being enough
Using the above I get about 70-85fps most of the time with very smooooth performance. This is in and around the Prague hub where the performance and stutters are at their worst.
One other interesting point to note is the in game benchmark is NOT representative of the actual game, especially when you get to the Prague level. In the benchmark dx12 is definitely the best with higher frame rates and smooth and stutter free, but in the actual game it's terrible as mentioned.