Intel Xeon E7 4830 v3 's Advantages
Released 4 years and 2 months late
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E3 1220 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Higher base frequency (3.1GHz vs 2.1GHz)
Lower TDP (80W vs 115W)