Xeon w3 2525 '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 (3.5GHz vs 2.5GHz)
Larger L3 cache size (22.5MB vs 10MB)
More modern manufacturing process (10nm vs 22nm)
Intel Xeon E5 2609 v2 's Advantages
Lower TDP (80W vs 175W)