Hey. I have an a10-6700 and r9 270. How would you crossfire the GPU and the discrete graphics on the APU? Also will this give me any performance boost?
In case you are still waiting on a response, or anyone else with the same question, the answer is that only the R7-240 or R7-250 were able to be crossfired with the A10 series APU. The R9-270 by itself is a much better GPU than that offered with the A10. Running the R9-270 card as a standalone GPU is your best bet.