Tested in the Black Death Track there is a big drop in performance in X-Fire default mode whilst 1x1 sees all water flicker.AFR makes the screen flash like crazy.
Ihave submitted a report to AMD here :
http://www.amdsurveys.com/se.ashx?s=5A1E27D20B2F3ECF
Informing them there will be no further updates to the game and politely requested a xfire profile .Please post any findings both here with any problemsto AMD .If all Amd users request a profile for the game and we are lucky to get a response from AMD it will inprove single as well as xfire performance and be optimised for the game .