Questions
Q1
How to choose VGA card to work with AMD FM2 CPU for enable AMD Dual Graphic (Hybrid Crossfire) function?

Here is the recommendation list for AMD FM2 CPU to enable Dual Graphic (Hybrid Crossfire) function.

A10: HD 6670 or HD 6570

A8: HD 6670 or HD 6570

A6: HD 6570 or HD 6450