Intel Xeon E5 2420 v2 's Advantages
Lower TDP (80W vs 325W)
Xeon w7 3555 's Advantages
Released 10 years and 11 months late
Higher specification of memory (4800 vs 3)
Higher base frequency (2.7GHz vs 2.2GHz)
Larger L3 cache size (75MB vs 15MB)
More modern manufacturing process (10nm vs 22nm)