Intel Xeon E5 2609 's Advantages
Newer PCIe version (3 vs 2)
Higher base frequency (2.4GHz vs 2.3GHz)
Larger L3 cache size (10MB vs 8MB)
Lower TDP (80W vs 115W)
Opteron 6376 's Advantages
Released 8 months late
Higher specification of memory (1866 vs 3)