Sorry to say, but CPU performance on these consoles really isn't up to par compared to any current PC CPU out there. PS4 and XOne are using low-power cores designed to be used in tablets, the lack of single threaded performance won't be helped by the fact they have 8 cores(and only 6 cores usables for gaming, which makes things even worse). Saying a low-end CPU doesn't bottleneck the GPU isn't realistic. For example:
That's quite an extreme case from this review of the MSI GX60 notebook, but you can get the point. This is a similar scenario to what we would get on those new consoles, since the Radeon HD 7970M GPU is comparable to a PS4 one and we have a multitude of different CPUs to compare performance, and I'm quite sure an A10-4600M is a lot more powerful than those 8 Jaguar cores have on PS4 and XOne. Of course, there's a bottleneck to consider on PCs thanks to API's drawcalls, but you can't ignore the huge framerate difference that happens when you use a more powerful processor, the complete lack of CPU performance on PS4 and XOne simply doesn't allow them to be compared to any current PC out there.
