Intel Xeon E5 1650 v2 's Advantages
Released 3 years and 6 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (3.5GHz vs 2.8GHz)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon X5660 's Advantages
Lower TDP (95W vs 130W)