Gsync problems with GTX 1080 sli

[mrsatvat9999]

Hi all,

If I turn on gsync with my GTX 1080s in SLI (for reference i7-4390k OC to 4.2ghz, completely stable), my 4k fps in witcher 3 dies down to 40-42 fps. If I turn off gsync and just use vsync, I get a smooth 60fps. What gives?

Thanks in advance for the help

 

[Hlsgsz]

Use both G-Sync and Vsync. It's teh way Nvidia meant G-Sync to be used.

 

[mrsatvat9999]

I have confirmed with NVIDIA this is a driver problem they are trying to iron out

 

[Hlsgsz]

I have confirmed with NVIDIA this is a driver problem they are trying to iron out

Well that was my second most probable cause. It is what it is with SLI and new hardware.

 

[mrsatvat9999]

https://forums.geforce.com/default/topic/946818/geforce-1000-series/gtx-1080-sli-low-gpu-usage-while-g-sync-enabled/1/

 

[Hlsgsz]

Out of curiosity, what sort of FPS are you getting in W3 with SLI off?

 

[mrsatvat9999]

42 fps at 4k, hairworks at 4x, foliage view distance at high, terrain detail high, shadows high, everything else ultra (it's what geforce experience recommends

55-60 with SLI

Same 40-42 if I use gsync and sli

 

[Hlsgsz]

42 fps at 4k, hairworks at 4x, foliage view distance at high, terrain detail high, shadows high, everything else ultra (it's what geforce experience recommends

55-60 with SLI

Same 40-42 if I use gsync and sli

I'd just turn off hairworks, disable SLI and enable G-Sync until they out a fix. I'd rather nto deal with teh microstutter caused by SLI, especially if i can;t supress it with Gsync.