Opteron 6308 's Advantages
Higher base frequency (3.5GHz vs 2.8GHz)
Intel Xeon E5 2663 v3 's Advantages
Released 1 years and 10 months late
Higher specification of memory (2133 vs 1866)
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)