Opteron 6348 's Advantages
Higher base frequency (2.8GHz vs 2.3GHz)
Lower TDP (115W vs 150W)
Intel Xeon E7 8880 v3 's Advantages
Released 2 years and 7 months late
Higher specification of memory (1866 vs 1866)
Newer PCIe version (3 vs 2)
Larger L3 cache size (45MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)