Intel Xeon E5 2620 's Advantages
Lower TDP (95W vs 130W)
Intel Xeon w3 2425 's Advantages
Released 10 years and 11 months late
Higher specification of memory (4400 vs 3)
Newer PCIe version (5 vs 3)
Higher base frequency (3GHz vs 2GHz)
More modern manufacturing process (10nm vs 32nm)