I was about to pull a trigger on a 50xx…
If you already have 40xx, just keep using that without any doubts. If you’re on 30xx, just skip the 50 & see what Nvidia does with next gen. If you’re on any earlier gen & really want to upgrade, just go for 4090 or 4080 super. 50 series is somewhat closer or sometimes worse than 40 series, it just has some gain on AI.
I regret getting my new card when I came to know that they silently removed PhysX from the card. They never say it publicly, maybe it was somewhere in a tiny 2 word notes like conditions apply things.