So I have two Sapphire HD 7770 GHZ Edition cards (Crossfired). About 6 months ago my computer started showing them as R7 200 cards. I didn't really pay any mind since there was no performance issues. One of my cards died and I purchased a identical replacement. Now my system shows that I have 1x Sapphire HD 7770 GHZ Edition card and 1x R7 200 card. It allows them to crossfire but it is wreaking havoc with my system. I can't games to load and when I do they are so laggy, it's not funny. When I run the single that identifies as a R7 200, it performs fine, I run the one that identifies as 7700 it seems a little slower. If I cross fire them together forget it. Is how the system recognizes the cards effecting their ability to Crossfire properly? Like I said I bought an identical replacement card. No, I did not pull the wrong card, the one I pulled is dead and won't run on it's own. Thanks.