…none of the processors you list seem to exist? The only “7800” ryzen is the 7800X3D which retails for more than that by itself, let alone in a complete system, and I highly doubt you mean the A10 7800 which is over a decade old. No AMD CPU or APU that I can find has ever been branded as 8800 or 8900.

The closest and highest end match to any of those numbers, the 8700G, falls well short of a PS5. There’s no way it counts as close unless you’re talking astronomical scales and “within an order of magnitude” is considered “close”. The iGPU on the 8700G being a newer architecture than the RDNA2 in the PS5 doesn’t make up for the fact that the PS5 has three times as many compute units.