The 760G chipset is what's used on the AM3+ m-ATX boards and it comes with onboard graphics.
The 9xx chipsets (970 etc) don't have onboard graphics and will need a separate GFX card. As stulid has said, I'm pretty sure they're all ATX boards as well.
Edit, so OK there are a couple of m-atx boards, but as jamie says they aren't great.