Opteron 3320 EE 's Advantages
Lower TDP (25W vs 105W)
Intel Xeon E5 4620 v3 's Advantages
Released 2 years and 6 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (2GHz vs 1.9GHz)
Larger L3 cache size (25MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)