Intel Xeon D 1557 's Advantages
Released 4 years and 10 months late
More modern manufacturing process (14nm vs 32nm)
Lower TDP (45W vs 105W)
Xeon E7 4830 's Advantages
Higher specification of memory (1333 vs 4)
Higher base frequency (2.133GHz vs 1.5GHz)
Larger L3 cache size (24MB vs 1.5MB)