Intel Xeon E3 1285 v6 's Advantages
Released 3 years and 11 months late
Higher specification of memory (DDR4 vs DDR3)
Higher base frequency (4.1GHz vs 3.3GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (79W vs 130W)
Intel Xeon E5 2667 v2 's Advantages
Larger L3 cache size (20MB vs 8MB)