Intel Xeon E7 4820 v3 's Advantages
Released 8 years and 2 months late
Higher specification of memory (1866 vs 667)
Newer PCIe version (3 vs 1)
More modern manufacturing process (22nm vs 90nm)
Lower TDP (115W vs 120W)
Opteron 8222 SE 's Advantages
Higher base frequency (3GHz vs 1.9GHz)