AMD's mobile Ryzen series is slowly but surely making its way up onto higher-end Ultrabooks. The less expensive ZenBook 14 UM433DA will offer Ryzen Zen+ processors for a similar level of performance to the more expensive Intel Whiskey Lake-U series.
https://www.notebookcheck.net/Finally-Asus-ZenBook-14-SKUs-with-AMD-Ryzen-3500U-and-3700U-options-are-coming.430320.0.html