Pro duo is VR dev card, and every one of those games you mention are an nvidia sponsored or gimpworks game. And yet you wanna blame AMD and not the devs. Alrighty then. I had 290x xfire till 3 weeks ago. I didnt get rid of them because of issue but because I really wanted a fury X. I have only bought 2 games on launch recently, Need for Speed and Rise of the Tomb Raider. I always usually wait to get a game for at least a month for patches and bugs regardless of single or multi gpu. I may just have been lucky, but I never had any xfire issues. HD 5770 Xfire, HD 7850 2gb xfire, HD 7950 xfire, 290x xfire. I actually had way more issues with GTX 970 sli then I ever did with Crossfire. SLI was a damn disaster on Win 10 launch with my GTX 670s.