Xeon w3 2525 's Advantages
Released 6 years and 4 months late
Higher specification of memory (4400 vs 2666)
Newer PCIe version (5 vs 3)
Higher base frequency (3.5GHz vs 2.9GHz)
Larger L3 cache size (22.5MB vs 12MB)
More modern manufacturing process (10nm vs 14nm)
Xeon E 2186M 's Advantages
Lower TDP (45W vs 175W)