PS5 build cost more than 450 USD , Sony probably having a hard time deciding the retail price

[drkohler]

Pemalite said:

It's not. It's misleading and sometimes even blatantly false.

You can have a GPU that is absolutely identical in every way, but if you hamper it with DDR4 instead of GDDR5/6, then it's performance can be less than half.
We saw this with the Geforce 1030 DDR4 vs GDDR5 variants.

And Radeon 7750 DDR3 vs GDDR5.

And so many more.

Both consoles use gddr6 as memory. Your strawman falls flat on its nose right from the start.