AMD EPYC 9654 's Advantages
Newer PCIe version (5 vs 4)
Larger L3 cache size (384MB vs 16MB)
AMD Ryzen Embedded 8640U 's Advantages
Released 1 years and 5 months late
Higher specification of memory (5600 vs 4800)
Higher base frequency (3.5GHz vs 2.4GHz)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (28W vs 360W)