Intel Xeon E5 2690 's Advantages
Newer PCIe version (3 vs 2)
Higher base frequency (2.9GHz vs 2.8GHz)
Larger L3 cache size (20MB vs 8MB)
Opteron 6348 's Advantages
Released 8 months late
Higher specification of memory (1866 vs 3)
Lower TDP (115W vs 135W)