Actually I will expect to see it on the GTX-680 first, I don't know if you check the review today, but at $ 499, the GTX is more powerfull than a HD7970, it's cheaper, and consume less electricity. AMD is now in the same position with the GPU and the CPU.
I'm not Nvidia Fan Boy, but it's about time AMD do something if they want to survive, and if someone want they survive it's me.