Intel Xeon E5 2680 v3 's Advantages
Larger L3 cache size (30MB vs 8MB)
Intel Xeon E3 1220 v5 's Advantages
Released 1 years and 1 months late
Higher base frequency (3GHz vs 2.5GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (80W vs 120W)