Does anyone have better performance on old version of AMD drivers than the latest ones? Or is that a thing of the past?
Did you set radeon settings to performance rather than balanced? Balanced setting will screw with multiple cards. Did you lower intensity in crimson? Not all cards are made the same, even if its the same card. Also, did you purchase new from store or used? Someone could have modded the bios and thats why you read them differently at "stock" settings