Opteron 6278 's Advantages
Lower TDP (115W vs 165W)
Intel Xeon E7 8867 v3 's Advantages
Released 3 years and 1 months late
Higher specification of memory (DDR3 vs DDR3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.5GHz vs 2.4GHz)
Larger L3 cache size (45MB vs 8MB)