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 99W)
Opteron 6338P 's Advantages
Released 1 years and 10 months late
Higher specification of memory (1600 vs 3)