Intel Xeon E5 1650 's Advantages
Newer PCIe version (3 vs 2)
Higher base frequency (3.2GHz vs 2.8GHz)
Larger L3 cache size (12MB vs 8MB)
Opteron 6320 's Advantages
Released 8 months late
Higher specification of memory (1866 vs 3)
Lower TDP (115W vs 130W)