Opteron 6348 's Advantages
Released 8 months late
Higher specification of memory (1866 vs 3)
Higher base frequency (2.8GHz vs 1.8GHz)
Intel Xeon E5 2603 's Advantages
Newer PCIe version (3 vs 2)
Larger L3 cache size (10MB vs 8MB)
Lower TDP (80W vs 115W)