Intel Xeon E5 1620 v3 's Advantages
Higher specification of memory (2133 vs 1866)
Higher base frequency (3.5GHz vs 1.7GHz)
Larger L3 cache size (10MB vs 8MB)
More modern manufacturing process (22nm vs 28nm)
Opteron A1120 's Advantages
Released 1 years and 4 months late
Lower TDP (25W vs 140W)