Intel Xeon w5 3435X 's Advantages
Newer PCIe version (5 vs 3)
Higher base frequency (3.1GHz vs 2GHz)
Larger L3 cache size (45MB vs 6MB)
Intel Atom x7809C 's Advantages
Released 1 years and 2 months late
Higher specification of memory (DDR5-4800 vs DDR5-4800)
Lower TDP (25W vs 270W)