Intel Xeon E5 4620 v3 's Advantages
Released 2 years and 6 months late
Higher specification of memory (DDR4-1866 vs DDR3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (25MB vs 8MB)
Opteron 3380 's Advantages
Higher base frequency (2.6GHz vs 2GHz)
Lower TDP (65W vs 105W)