Intel Xeon W 2155 's Advantages
Released 2 years and 2 months late
Higher specification of memory (2666 vs 1866)
Higher base frequency (3.3GHz vs 2.9GHz)
Larger L3 cache size (13.75MB vs 6MB)
Intel Xeon E3 1284L v4 's Advantages
Lower TDP (47W vs 140W)