Intel Xeon E3 1231 v3 's Advantages
Higher base frequency (3.4GHz vs 2.5GHz)
Intel Core i5 12400 's Advantages
Released 7 years and 8 months late
Integrated graphics card
Higher specification of memory (4800 vs 1600)
Newer PCIe version (5.0 vs 3)
Larger L3 cache size (18MB vs 8MB)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (65W vs 80W)