Intel Xeon Platinum 8558P 's Advantages
Newer PCIe version (5 vs 3)
Higher base frequency (2.7GHz vs 2GHz)
Larger L3 cache size (260MB vs 6MB)
More modern manufacturing process (7nm vs 10nm)
Intel Atom x7809C 's Advantages
Higher specification of memory (4800 vs 4800)
Lower TDP (25W vs 350W)