Opteron 6344 's Advantages
Lower TDP (115W vs 135W)
Intel Xeon E5 2667 v3 's Advantages
Released 1 years and 10 months late
Higher specification of memory (2133 vs 1866)
Newer PCIe version (3 vs 2)
Higher base frequency (3.2GHz vs 2.6GHz)
Larger L3 cache size (20MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)