Panajev2001a
GAF's Pleasant Genius
Well in terms of GPU upgrade, they've basically put in an AMD 390/Nvidia 970 class part in it.
Don't care what anyone says, doubling GPU performance but keeping that horrid little Jaguar CPU just increases the CPU bound nature of the PS4, even with a 500Mhz clock bump, in fact a x2 GPU capability paired with only a 30% CPU bump makes it even more unbalanced than before.
That Jaguar CPU needs to go.
I think you are underestimating the performance of the cluster of 8 Jaguar cores at the intended frequency and overestimating the importance of CPU performance in the design of these consoles. Not to say that Xbox Next and PS5 will not update the CPU's to a more powerful core, but I would be surprised if the relative performance ratio between CPU and GPU is not going to stay the same. There was an insomniac CPU optimisation GDC track about the Jaguar setup in this generation of consoles and while it may not match gamers Core i7 expectations, the words on it were still pretty positive. It is a reliable, relatively surprise free (nasty unexpected performance pitfalls... see PPC cores in the previous generation), general purpose little core meant to keep a monster GPU fed (monster is relative to console size and thermal budgets) and the game responsive while the GPU progressively take over as much work as it possibly can.