Intel Xeon E5 4620 v3 's Advantages
Released 2 years and 7 months late
Newer PCIe version (3 vs 2)
Larger L3 cache size (25MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (105W vs 115W)
Opteron 6344 's Advantages
Higher specification of memory (1866 vs 1866)
Higher base frequency (2.6GHz vs 2GHz)