3DMark has confirmed that Xiaomi will be offering the RedmiBook 13, RedmiBook 14S, and RedmiBook 16 with an AMD Ryzen 7 4700U processor. Also available with the Ryzen 5 4500U, all models will come with at least 16 GB of RAM and a 512 GB SSD.
https://www.notebookcheck.net/3DMark-confirms-up-to-AMD-Ryzen-7-4700U-16-GB-of-RAM-and-a-512-GB-SSD-for-the-Xiaomi-RedmiBook-13-RedmiBook-14S-and-RedmiBook-16.466010.0.html