Intel Xeon E7 4820 v3 's Advantages
Released 5 years and 10 months late
Higher specification of memory (1866 vs 1333)
Newer PCIe version (3 vs 2)
Larger L3 cache size (25MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (115W vs 130W)
Xeon W5590 's Advantages
Higher base frequency (3.333GHz vs 1.9GHz)