Opteron A1170 's Advantages
Higher base frequency (2GHz vs 1.9GHz)
Lower TDP (32W vs 250W)
Xeon 6766E 's Advantages
Released 8 years and 5 months late
Higher specification of memory (6400 vs 1866)
Newer PCIe version (5 vs 3)
Larger L3 cache size (108MB vs 8MB)
More modern manufacturing process (5nm vs 28nm)