I'm considering buying a new PC and am having some trouble working out what the best options are. I'm looking at an AMD based system and have come up with two approaches: 1. an A6-3670K Quad core APU (2.7GHz) with Radeon HD6530D integrated graphics AND a 1GB Radeon HD7770 card. 2. an A10-5800K Quad core APU (3.8Ghz) with Radeon HD 7660D integrated graphics. ...and 8GB of RAM. Both work out at roughly the same price. What I'm having trouble finding out is what happens when you plug a graphics card into a system that already has integrated graphics? Do they work together? Does one override the other? Which of those two options would be best as far as doing some moderate gaming is concerned? Cheers.