Xeon E7 4820 's Advantages
Lower TDP (105W vs 250W)
Intel Xeon W 3335 's Advantages
Released 10 years and 3 months late
Higher specification of memory (3200 vs 1333)
Higher base frequency (3.4GHz vs 2GHz)
Larger L3 cache size (24MB vs 18MB)
More modern manufacturing process (10nm vs 32nm)