dr_rus
Member
It is not like part of the engine but part of the GPU.
ROPs has it own clock.
SPs has it own clock.
This is only a example... GTX 280 runs ROPs at 602Mhz while the SPs at 1296MHz... I don't know the clocks for GTX 1080 because nVidia only share the SPs clock and in AMD each part of the GPU has it own clock (mostly of time they use the same base clock).
And like I showed not all parts of Polaris get upgraded and these parts could be slower than PS4's GPU if running at lower clocks.
That is all guess too.
Everything is running on the same clock in Polaris, the only thing which is running on a different clock are the memory controllers, I believe (they run on the memory base clock).
Thing is that all the talk about how same (more or less) h/w with a slight clock bump leads to compatibility issue shows that Sony don't really care about s/w compatibility with future platforms. Otherwise this shit would be abstracted beyond APIs enough to not make any difference.
This kinda reaffirms Leadbetter's impression that PS5 may be a "clean slate" again, loosing all compatibility with PS4/Pro s/w.