The latest iPad Pros are, undoubtedly, the most powerful tablets on the market currently. Theoretically, the new M1-equipped models can outperform AMD and Intel-powered laptops, but early performance tests suggest that is not necessarily the case.
https://www.notebookcheck.net/The-Apple-M1-consumes-up-to-30-more-than-the-A12Z-Bionic-does-in-the-iPad-Pro.540682.0.html
...Looks like we should be expecting more of the same "ripgate" from the latest iPP's.
This explains why Apple put a bigger battery inside the 12.9in pro but battery life has remained roughly the same...