I've been running a mobile A8 quad core with a 6000 series GPU for about a year under 3.x kernels and open source x.org drivers.  Not a hiccup.

On Jul 22, 2013 3:57 PM, "Alexander Puchmayr" <alexander.puchmayr@linznet.at> wrote:
Hi there,

I'm thinking of bying a quad-core cpu, preferably an amd cpu because they are
significantly cheaper than intel ones.

The actual models are A8 (trinity, RD 7560D GPU) and A10 (richland RD 8570D
GPU), or a plain AthlonIIx4 (no GPU).
My question is: Are these GPUs supported properly under linux? Does anyone
have experiences with them?

Thanks,
        Alex