Originally Posted by Stingray 
I guess you're probably assuming 1920x1080? But he never mentioned what resolution he's using, that makes a world of difference.
I didn't assume anything, but I did list my own resolution above. Doesn't matter anyway. If he's higher than that, he can lower it. The Witcher 3 isn't a 4K game. Complaining that it doesn't run is not preferable to setting it to 1920x1080 resolution.