Intel Atom x7405C 's Advantages
Released 8 years and 10 months late
Higher specification of memory (4800 vs 1866)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (12W vs 115W)
Intel Xeon E7 4809 v3 's Advantages
Higher base frequency (2GHz vs 1.7GHz)
Larger L3 cache size (20MB vs 6MB)