If the PS5 has a worthy future proof CPU, they can design the console to either have a regular PCI-E slot for a PC style GPU, or they can design their own proprietary third party AMD GPU card and slot.
This way, they could sell a base PS5 and Pro model at launch, with the same CPU but different GPU's, and allow customers to upgrade whenever they want, or whenever PS releases a specific GPU upgrade, yearly or bi-yearly.
This would make the console even more like a PC, but would be the best solution to the mid gen upgrade issues.
PS1 - ! - We must build a console that can alert our enemies.
PS2 - @- We must build a console that offers online living room gaming.
PS3 - #- We must build a console that’s powerful, social, costs and does everything.
PS4 - $- We must build a console that’s affordable, charges for services, and pumps out exclusives.
PRO -%-We must build a console that's VR ready, checkerboard upscales, and sells but a fraction of the money printer.
PS5 - ^ -We must build a console that’s a generational cross product, with RT lighting, and price hiking.
PRO -&- We must build a console that Super Res upscales and continues the cost increases.







