Intel Xeon E3 1220 's Advantages
Higher base frequency (3.1GHz vs 2.8GHz)
Intel Xeon E 2314 's Advantages
Released 10 years and 5 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (65W vs 80W)