Intel Xeon E5 2420 's Advantages
Lower TDP (95W vs 300W)
Xeon w5 3535X 's Advantages
Released 12 years and 3 months late
Higher specification of memory (4800 vs 3)
Higher base frequency (2.9GHz vs 1.9GHz)
Larger L3 cache size (52.5MB vs 15MB)
More modern manufacturing process (10nm vs 32nm)