So these are the new specs for the new ps4 "neo" e.e
The processor seems to be just a overclocked version of the previous one still no match for any quad core i5.
I have no idea about APU GPUs but this one seems to have double the compute units and a higher clockspeed. But the question is does it use a 14nm chip? I doubt it.
The memory is largely unchanged no gddr5x but there is a speed bump.
But the main question is will this be enough for 4k 30fps gaming? Quite doubtful.