Intel Xeon E5 2687W 's Advantages
Released 5 years and 1 months late
Higher specification of memory (3 vs 2)
Newer PCIe version (3 vs 1)
Higher base frequency (3.1GHz vs 2.8GHz)
More modern manufacturing process (32nm vs 90nm)
Opteron 2220 's Advantages
Lower TDP (95W vs 150W)