AMD Ryzen Embedded 8640U 's Advantages
Released 7 months late
Higher specification of memory (DDR5-5600 vs DDR5-4800)
Higher base frequency (3.5GHz vs 2.5GHz)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (28W vs 200W)
AMD EPYC 8434P 's Advantages
Newer PCIe version (5 vs 4)
Larger L3 cache size (128MB vs 16MB)