I have an A8-5600K and I want to put in a discrete GPU for my system. I know that AMD products are capable of using dual graphics. I know mine is capable of using dual graphics with an HD 6570. Does the graphics card that I buy need to be crossfire compatible and how would I use the dual graphics feature? If the graphics card does need to be crossfire capable, does anyone have any suggestions since there are no 6570s that are crossfire capable?