AMD EPYC 9825 's Advantages
Released 6 months late
Higher specification of memory (6000 vs 5600)
Newer PCIe version (5 vs 4)
Larger L3 cache size (384MB vs 16MB)
More modern manufacturing process (3nm vs 4nm)
AMD Ryzen Embedded 8645HS 's Advantages
Higher base frequency (4.3GHz vs 2.2GHz)
Lower TDP (45W vs 390W)