Intel Xeon E5 2687W v2 's Advantages
Higher base frequency (3.4GHz vs 2GHz)
Lower TDP (130W vs 135W)
Intel Xeon E5 4667 v3 's Advantages
Released 1 years and 9 months late
Higher specification of memory (DDR4-2133 vs DDR3)
Larger L3 cache size (40MB vs 20MB)