Thanks for your suggestions guys, I've got it up to a playable level now. Mesh quality low helped a lot, so did mantle. Just with stutter.
I'm running a A-10 6800k for my cpu which is almost exactly the same as your cpu. I'm sure you have already done this but this worked for me as i just purchased it. I also run a GTX 660 as my gpu.
https://www.youtube.com/watch?v=kIga2RGolQE
Whoops, forgot this one as well.
https://www.youtube.com/watch?v=B6DOBV7QkLU
...i get no stutters or dips in skyrim
What did I do to achieve this miracle?
Turned shadows down a notch, crazy ass coders on skyrim do all the shadow calculations on the cpu.
A poorly programmed console port is not a good judge of a cpu's capabilities.
Also, bf4 ran with buttery smooth butterness for me even on dx11 when I only had ONE 7970 (@1080p).. :D
Just saying, mileage may vary