AMD EPYC 8434PN 's Advantages
Newer PCIe version (5 vs 4)
Larger L3 cache size (128MB vs 16MB)
AMD Ryzen Embedded 8645HS 's Advantages
Released 7 months late
Higher specification of memory (5600 vs 4800)
Higher base frequency (4.3GHz vs 2GHz)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (45W vs 155W)