Intel Xeon E5 2623 v3 's Advantages
Lower TDP (105W vs 130W)
Intel Xeon w3 2425 's Advantages
Released 8 years and 5 months late
Higher specification of memory (4400 vs 1866)
Newer PCIe version (5 vs 3)
Larger L3 cache size (15MB vs 10MB)
More modern manufacturing process (10nm vs 22nm)