Xeon E7 4870 's Advantages
Larger L3 cache size (30MB vs 13.75MB)
Intel Xeon W 2150B 's Advantages
Released 6 years and 8 months late
Higher specification of memory (2666 vs 1333)
Higher base frequency (3GHz vs 2.4GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (120W vs 130W)