I think if anything, it's more likely that the PS5 gets a bump to higher speed memory. I think that would offer more benefit than 2 more CU's enabled or something like that. Either way though, a bump to specs is a good thing. At this stage there's no radical changes that will take place but again the RAM speed being upped would probably bring the most in the way of performance gains. We shall see...
I totally agree,
If there is an improvement it will be precisely that, however I have read that they have quite an impact on the TDP of the PS5 going from 14 gbps to 16 gbps.
If you have opted for 16 gbps, the decision has taken months, or they had various hardware ready to make the right choice.
I still think the I / O controller is CU based, using 2 CU for I / O controller and 2 CU for tempest (36 CU enabled + 2SPU). It is possible that the CU I / O were shared with the GPU. In other words, the GPU had 36 CUs but an ACE towards I / O and placed the I / O at the appropriate times.
Enabling 2 CU would not be crazy, maybe all the hardware is designed for 36 CU but you could use the 2 new CUs to execute I / O in a super stable way and also serve as a springboard and improvement due to the GDDR 16 gbps, in addition to release an ACE. (Getting 38 CU + 2 SPU)
It may also be that the I / O controller is based on CU but outside of Slice. And an improvement of 2 CU can serve to put more ACE in parallel. Although everything was designed to fill 36 CU, if you improve the memory to 16 gbps you can already fill 38 CU without problem. There will be no CU upload without memory improvements, that is clear to me.
Because of this, if there is an improvement, it will almost certainly be that of memory, and then what Sony have been able to put. Improving the CU will improve the CPU to keep at the same point where it is just as easy to cool down as it is to heat up the CPU + GPU just like Cerny said on Road to PS5.