Intel Xeon D 1557 's Advantages
Released 2 years and 5 months late
Higher base frequency (1.5GHz vs 1.1GHz)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E3 1220L v3 's Advantages
Higher specification of memory (1600 vs 4)
Larger L3 cache size (4MB vs 1.5MB)
Lower TDP (13W vs 45W)