Leaked benchmarks indicate the business-focused AMD Ryzen 5 Pro 4650U as having an edge over the Ryzen 5 4500U SKU in 3DMark Time Spy. AMD has been comparing the Ryzen 4000 U-series to Intel Ice Lake-U and a leaked Cinebench R15 score shows the Ryzen 5 4500U as having a significant lead in the test.
https://www.notebookcheck.net/AMD-Ryzen-5-Pro-4650U-offers-a-good-performance-incentive-over-the-Ryzen-5-4500U-the-latter-being-leaps-and-bounds-ahead-of-Intel-Ice-Lake-U-in-Cinebench-R15.455910.0.html