Since I install newer version of amd drivers in 2nd half of july 2016, this problem pop up.
During use a Photomode in "The Crew: Wild Run", trying to save a picture in 4K - artefacts come out. And it's not even MSAA anti-alliasing. It's a FXAA.
It was on Win 7. Later I install Win 10. Every new version of AMD drivers cant fix this thing.
My spec is:
AMD Phenom II X4 B50 3.2 GHz
Gigabyte HD7850 2 Gb
8 Gb RAM
1) first half of July
2) after July