Do you really think that PS5pro's GPU is equivalent to 7900 XTX or RTX4080!? Oh holy LOL :D
PS5's GPU is very similar to Radeon RX 6700. The Pro one, with 67% more compute units would be around RX 6800 level ... a $300 GPU
They haven't mentioned a thing regarding the CPU or RAM, so I guess it stays the same, so Ryzen 7 5800-ish +16GB. There's no way in hell this thing rocks top Ryzen 9.
You could build a PC like that for no more than $1000 ... including a decent monitor