Well if you love AMD then you should have gone with the 7850 GPU over the 660. AMD do great bang for buck GPUs. The 660 is utter meh!
If you knew how to balance a build you would know that there is no need for both PCI-express 3.0 lanes to run at X16, X8 is just fine, even for PCI-Express 2.0. Infact your midrange GPU isn't even taxing the PCI-Express 3 lane, not even a high end card does.
But this thread isn't about you, it's about the OP and I'll advise him not you, why you hijack threads and make them about you I don't understand. If you want to buy AMD stuff then crack on. The OP has watched TTL's video and can see that he is better off going intel.......sadly you can't see the light