Strange.....

[JLuchinski]

After installing my new GPU I was running some benchmarks, I noticed Valley said I was running Windows 8.1 and Mafia 2 said I was running Windows 7. It never did this with my GTX 580, does that seem normal? I have the latest drivers and uninstalled the old ones properly.

 

[Okedokey]

I wouldn't worry about that. It may just be that the applications see the OS build number and if it is above a certain version, it will report the latest version it is aware of. You may want to see if there are any updates to the applications.

 

[Calin]

Yes it's normal. with my 1080s valley reports 8.1, and also if you have more than 4GB of VRAM, it will only say 4

 

[JLuchinski]

Ok thanks, I swear it said Windows 10 with my older card.