the PS5 pro uses 60 CU rdna 4, so if you want to match that, buy the supposedly rumored 8800XT that amd is trying to pump more of as they forgoe top end end generation supposedly (basically similar to the RX 480 and RX 5700xt generations)
keep in mind, console and pc sales and cost differ because of where they focus on making money. Sony for example makes money off accessory sales (the ps5 pro is disk driveless and no vertical stand) ontop of never adressing the rampant stick drift problem the dualsense has, ontop of paid online, none of which is any signicant factor on PC, which generally speaking is more front loaded cost heavy but overtime has lower cost in games, services and such.