I’m planning on running 16.04 with the same APU. Have you had any issues with graphics drivers? Thanks!
Open source radeon drivers are good. You get them by default when you install. I have tested 6000, 7000 and 8000 series APU/GPUs. No issues to report. It’s my preferred driver. I am not a gamer though.
I have an AMD-ATI R7200 with the open source driver. It works really well