Xeon w5 3525 's Advantages
Released 14 years and 6 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Higher base frequency (3.2GHz vs 2.266GHz)
Larger L3 cache size (45MB vs 4MB)
More modern manufacturing process (10nm vs 45nm)
Xeon EC5539 's Advantages
Lower TDP (65W vs 290W)