Intel Xeon E3 1125C 's Advantages
Lower TDP (40W vs 105W)
Intel Xeon Platinum 8256 's Advantages
Released 6 years and 7 months late
Higher specification of memory (DDR4 vs DDR3)
Higher base frequency (3.8GHz vs 2GHz)
Larger L3 cache size (16.5MB vs 8MB)
More modern manufacturing process (14nm vs 32nm)