Intel Xeon D 1557 's Advantages
Released 1 years and 5 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 85W)
Intel Xeon E5 2609 v3 's Advantages
Higher specification of memory (1600 vs 4)
Higher base frequency (1.9GHz vs 1.5GHz)
Larger L3 cache size (15MB vs 1.5MB)