Opteron 6366 HE 's Advantages
Lower TDP (85W vs 270W)
Intel Xeon w7 3455 's Advantages
Released 10 years and 3 months late
Higher specification of memory (4800 vs 1866)
Newer PCIe version (5 vs 2)
Higher base frequency (2.5GHz vs 1.8GHz)
Larger L3 cache size (67.5MB vs 8MB)
More modern manufacturing process (10nm vs 32nm)