I'm confused by your question. The A4 is a dual-core CPU with a built in graphics chip. You won't be gaming on it but it will get the job done. How it works is it's basically the CPU and GPU on one chip, instead of them being separate. The FM1 boards DO NOT have any GPU of any kind on them, they are merely the pipe to connect the CPU/GPU to the screen.
Does that answer your question? I'm sorry if it's over complicated.
Yeah, I just didn't know if it needed to be included in a crossfire with a separate graphics unit or if it could function as its own graphics unit.