AMD Ryzen Embedded 8640U 's Advantages
Higher specification of memory (DDR5-5600 vs DDR5-4800)
Higher base frequency (3.5GHz vs 2.7GHz)
Lower TDP (28W vs 350W)
Intel Xeon Platinum 8558P 's Advantages
Newer PCIe version (5 vs 4)
Larger L3 cache size (260MB vs 16MB)