AMD Ryzen Embedded 8645HS 's Advantages
Higher base frequency (4.3GHz vs 3.55GHz)
Lower TDP (45W vs 280W)
AMD EPYC 9355P 's Advantages
Released 6 months late
Higher specification of memory (6000 vs 5600)
Newer PCIe version (5 vs 4)
Larger L3 cache size (256MB vs 16MB)