Intel Xeon E5 2420 v2 's Advantages
Lower TDP (80W vs 250W)
Intel Xeon W 3335 's Advantages
Released 7 years and 10 months late
Higher specification of memory (3200 vs 3)
Higher base frequency (3.4GHz vs 2.2GHz)
Larger L3 cache size (24MB vs 15MB)
More modern manufacturing process (10nm vs 22nm)