Intel Xeon E5 2687W 's Advantages
Higher base frequency (3.1GHz vs 2.2GHz)
Intel Xeon E5 2658A v3 's Advantages
Released 2 years and 10 months late
Higher specification of memory (2133 vs 3)
Larger L3 cache size (30MB vs 20MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (105W vs 150W)