Intel Xeon E3 1220 v3 's Advantages
Released 3 years and 3 months late
Higher specification of memory (DDR3-1600 vs DDR3)
Newer PCIe version (3 vs 2)
Higher base frequency (3.1GHz vs 2.266GHz)
Larger L3 cache size (8MB vs 4MB)
More modern manufacturing process (22nm vs 45nm)