Intel Xeon E5 4620 v3 's Advantages
Released 3 years and 1 months late
Higher specification of memory (DDR4-1866 vs DDR3)
Larger L3 cache size (25MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E3 1125C 's Advantages
Lower TDP (40W vs 105W)