Intel Xeon E5 2687W v2 's Advantages
Released 3 years and 6 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.4GHz vs 2.933GHz)
Larger L3 cache size (20MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon X5670 's Advantages
Lower TDP (95W vs 130W)