Opteron 6348 's Advantages
Lower TDP (115W vs 130W)
Intel Xeon E5 1680 v2 's Advantages
Released 10 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3GHz vs 2.8GHz)
Larger L3 cache size (25MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)