Intel Xeon E3 1220 v3 's Advantages
Released 6 months late
Higher specification of memory (1600 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (3.1GHz vs 1.9GHz)
More modern manufacturing process (22nm vs 32nm)
Opteron 3320 EE 's Advantages
Lower TDP (25W vs 80W)