Good to see the PS5 Pro discussion is going strong.
We finally have some insight on RDNA3.5.
So, RDNA3.5 is basically the same as RDNA3 with 1 Shader Engine having 2 Shader Arrays, with 4 WGP in each Shader Array.
RDNA4 rumors has the same 4 WGP per Shader Array.
Where does this put PS5 Pro having 8WGP per Shader Array?
I have an idea what may be going on.
This tweet may explain how the PS5 Pro having 8WGP per Shader Array may work.
My guess is Cerny probably figured out how go above 5 WGP per Shader Array without losing performance like the XBSX using subarrays. Most likely the increase in cache is the reason.
Another guess for still using subarrays, is 1 subarray could be dedicated with assisting in AI/RT tasks.
PS5 Pro having RDNA3/4 with subarrays makes it near fully custom, since RDNA2 and up don't use subarrays.
I guess we'll find out in time what going on.