Yes according to AMD website ' AMD CrossfireX multi GPU Technology.,also it states it is AMD Radeon Dual Graphics compatible. If you search for that on the AMD website it gives an example configuration which is an A8 processor and Radeon HD 6570 Graphics Card. The Asus support page for my motherboard states this is one of its features. I found out the HD6570 is only capable of crossfire with 1 other card but i want it to crossfire with the A8, and this depends on power supply but only if less than 500W, but mine is 500W or 550W.
AMD A8 3870K (Black Edition) Processor, Asus F1A75 V Pro Motherboard, 8 Gb Ram, 2Gb Radeon HD 6570, Win 8.1(Preview)