Intel Xeon E5 2640 v3 's Advantages
Released 7 years and 7 months late
Higher specification of memory (1866 vs 2)
Newer PCIe version (3 vs 1)
More modern manufacturing process (22nm vs 90nm)
Lower TDP (90W vs 95W)
Opteron 2220 's Advantages
Higher base frequency (2.8GHz vs 2.6GHz)