i run an 8350fx at 4.4gHz with this board. so you can go up to that cpu. or any lower that you can overclock. 9xxx series will probably not run. important: update to bios 3029 first! (only 3030+3029 support those, and 3029 is the stable one in overall performance). they dont support it officially but it works because the board has 8+2 power lanes and 140W+ tdp cpu support.