AMD Ryzen Embedded 8640U 's Advantages
Higher specification of memory (5600 vs 5200)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (28W vs 105W)
AMD EPYC 4464P 's Advantages
Newer PCIe version (5 vs 4)
Higher base frequency (3.7GHz vs 3.5GHz)
Larger L3 cache size (32MB vs 16MB)