Lenovo is offering processor options up to an i7 Tiger Lake for the Intel models or up to a Ryzen 7 4800U for the AMD models. The Intel models are a bit bulkier as they get the best features including up to 40 GB of DDR4-3200 RAM, up to 3 TB of storage, an MX450 dGPU option and a Thunderbolt 4 connector. The AMD models, however, are limited to up to 16 GB LPDDR4x-4266 RAM, up to 1 TB storage, and they do not get a dGPU option, but they also are lighter and slimmer.
https://www.notebookcheck.net/Lenovo-announces-ThinkBook-14s-Gen-2-laptop-lineup-with-Intel-Tiger-Lake-and-AMD-Ryzen-4000U-processors.495251.0.html