Opteron 6386 SE 's Advantages
Released 8 months late
Higher specification of memory (1600 vs 3)
Lower TDP (140W vs 150W)
Intel Xeon E5 2687W 's Advantages
Newer PCIe version (3 vs 2)
Higher base frequency (3.1GHz vs 2.8GHz)
Larger L3 cache size (20MB vs 8MB)