Opteron 6328 's Advantages
Released 8 months late
Higher specification of memory (1866 vs 3)
Higher base frequency (3.2GHz vs 3GHz)
Larger L3 cache size (8MB vs 5MB)
Intel Xeon E5 2637 's Advantages
Newer PCIe version (3 vs 2)
Lower TDP (80W vs 115W)