Intel Xeon E5 2620 v3 's Advantages
Lower TDP (85W vs 175W)
Xeon w3 2525 's Advantages
Released 9 years and 11 months late
Higher specification of memory (4400 vs 1866)
Newer PCIe version (5 vs 3)
Higher base frequency (3.5GHz vs 2.4GHz)
Larger L3 cache size (22.5MB vs 15MB)
More modern manufacturing process (10nm vs 22nm)