2K released a trailer showcasing NBA 2K21 running on the PS5. https://www.youtube.com/watch?v=Jy00FgZNias&t=11s
Here is the comparison that was sput together comparing the PS5 and PS4 versions. It's a pretty big leap.
https://www.youtube.com/watch?v=0S8PK2SRU8w&t=5s