Opteron 6276 's Advantages
Lower TDP (115W vs 270W)
Intel Xeon w7 3445 's Advantages
Released 11 years and 3 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (2.5GHz vs 2.3GHz)
Larger L3 cache size (52.5MB vs 8MB)
More modern manufacturing process (10nm vs 32nm)