Intel Xeon E5 2666 v3 's Advantages
Released 7 years and 3 months late
Higher specification of memory (2133 vs 2)
Newer PCIe version (3 vs 1)
More modern manufacturing process (22nm vs 90nm)
Opteron 2222 's Advantages
Higher base frequency (3GHz vs 2.9GHz)
Lower TDP (95W vs 135W)