How does the statement that a PS4 is never going to outmatch 20x the Xbox One hardware by using GPGPU not make sense?
Physics are handled heavily be CPUs too and no a few GPU cores running GPGPU will never outmatch 20x CPUs.
Nobody said that. I said this doesn't make sense:
If part of a GPU could outmatch 20 CPUs we would be using CPUs in our computers.
If GPUs could offer more power why would we be using CPUs? I then said at given tasks a GPU can greatly outperform a CPU. Anyway I think I was pretty clear.