Xeon W 1390P 's Advantages
Released 5 years and 11 months late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 3)
Higher base frequency (3.5GHz vs 2GHz)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E7 4809 v3 's Advantages
Larger L3 cache size (20MB vs 16MB)
Lower TDP (115W vs 125W)