No one, with a working mind, would ever have thought of abysmal differences. Each console has its strengths, weaknesses and performance ceiling. Definitely both are working far below their own specs 10tf for the ps5 and 12tf for the xsx as the gen goes on the devs will find out how to get closer and closer to that roof.
ps. and I know that my post will ring alarm bells for the usual suspects. but that's because, albeit very close, they never accepted the specifications of the two machines.