Instead of buying a processor AND gpu I thought I'll save a bit of money and get an apu. I know it says "r7 graphics" but I was wondering how good is this r7. The main games I'm going to play are Planetside 2, Arma 3, and maybe Battlefield 4. How much performance can I expect from it? Also, will I be able to have mumble and/or teamspeak running while i'm playing?