AMD's Ryzen 5 5500U has appeared on Geekbench, confirming several aspects of the upcoming mid-range APU. The Ryzen 5 5500U is effectively a Ryzen 5 4500U with SMT enabled, or a rebranded Ryzen 5 4600U. The Ryzen 5 5500U has six cores, 8 MB of L3 cache and 3 MB of L2 cache.
https://www.notebookcheck.net/Geekbench-confirms-that-the-AMD-Ryzen-5-5500U-is-effectively-a-rebranded-Ryzen-5-4600U.505196.0.html