XFX 7970 Black Edition crossfire artifacting

XFX 7970's artifacting during longer game play. Video from Crysis 3 max settings except AA.

Mobo------------- ASRock 990FX Fatality Professional
CPU---------------AMD 8350
RAM---------------Corsair Dominator 2000Mhz 16GB
GPU---------------2x XFX 7970 Black Edition
PSU---------------Corsair 1050HX
Cooler------------Corsair H110
Case--------------Corsair 550D
SSD---------------Corsair something or other

Видео XFX 7970 Black Edition crossfire artifacting канала ToxicUFO