AMD's FX-8350 is a 32nm part. I don't know to what extent one company's 32nm process can be better than another, but but if there is a difference, I'd expect Intel to have the advantage. Given that the AMD part has 1.2B transistors on a 315mm^2 die and the Intel part has 1.16B transistors on a 216mm^2 die, I'd say the fabrication node isn't the whole story. (Even Intel's quad-core Sandy Bridge E part is 1.27B transistors in 284mm^2)