Intel Xeon E5 2667 v3 's Advantages
Higher specification of memory (2133 vs 4)
Larger L3 cache size (20MB vs 8MB)
Intel Xeon E3 1285 v6 's Advantages
Released 2 years and 11 months late
Higher base frequency (4.1GHz vs 3.2GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (79W vs 135W)