Xeon E7 8830 's Advantages
Higher specification of memory (1333 vs 4)
Larger L3 cache size (24MB vs 16.5MB)
Xeon Platinum 8256 's Advantages
Released 7 years and 8 months late
Higher base frequency (3.8GHz vs 2.133GHz)
More modern manufacturing process (14nm vs 32nm)