Intel Xeon Gold 6438M 's Advantages
Newer PCIe version (5 vs 3)
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (60MB vs 6MB)
Intel Atom x7809C 's Advantages
Released 1 years and 3 months late
Higher specification of memory (4800 vs 4800)
Lower TDP (25W vs 205W)