(PC) game starts to stutter after +/- 5minutes of play

Game starts stutering like crazy after a few minutes
I have a gtx980Ti and a 2600K running at 4,2 ghz and 8 gigs of ram.
The game is running from a SSD.
Changing resolution and or lowering settings does not change a thing.

I have the latest nvidia drivers installed.
Running win 10 and playing the steam version

Seconded. GT560Ti 2GB VRAM, 8GB RAM, though. Windows 10 also.

Same. GTX 770, I5 4430, 8gb of ram windows 7