https://www.notebookcheck.net/AMD-Ryzen-7-Pro-4750U-Ryzen-5-Pro-4650U-and-Ryzen-3-Pro-4450U-now-official-and-set-to-debut-on-the-Lenovo-ThinkPad-T14-T14s-X13-and-more.464235.0.html
https://www.anandtech.com/show/15772/new-lenovo-thinkpad-range-with-ryzen-4000-4000-pro-mobile
les pc portable avec du Ryzen 4000 : https://www.ultrabookreview.com/36030-amd-ryzen-7-4800u-laptops/
