This information is a bit dated but ...
Since "nm" is meaningless these days, the transistor count/mm2 is below.
As reference: TSMC 3nm is ~290 million transistors/mm2 (MTr/mm2).
IBM TSMC Intel Samsung
22nm 16.50
16nm/14nm 28.88 44.67 33.32
10nm 52.51 100.76 51.82
7nm 91.20 237.18 95.08
5nm 171.30
3nm 292.21
2nm 333.33
https://www.techradar.com/news/ibm-unveils-worlds-first-2nm-...