Xeon E7 4820 's Advantages
Lower TDP (105W vs 165W)
Intel Xeon w3 2435 's Advantages
Released 11 years and 10 months late
Higher specification of memory (4400 vs 1333)
Higher base frequency (3.1GHz vs 2GHz)
Larger L3 cache size (22.5MB vs 18MB)
More modern manufacturing process (10nm vs 32nm)