Intel Xeon D 1557 's Advantages
Lower TDP (45W vs 120W)
Intel Xeon w3 2423 's Advantages
Released 7 years late
Higher specification of memory (4400 vs 4)
Newer PCIe version (5 vs 3)
Higher base frequency (2.1GHz vs 1.5GHz)
Larger L3 cache size (15MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)