Does having different speeds on cores actually help? Cause for example Crossfire, which I know is completely different though, it doesnt matter what card is faster as the speed being really used is from the slowest right?

If it does help I DEMAND NOW a BIOS which supports it cause I dont feel like getting into AOD every time. It's nice to do a few quick changes while testing but for me that's it. Unless they get everything working perfectly, but AOD has been out for a while and it still doesnt work perfectly so that might take a while