Opteron 6366 HE 's Advantages
Higher specification of memory (1866 vs 4)
Lower TDP (85W vs 165W)
Xeon Platinum 8260 's Advantages
Released 6 years and 1 months late
Higher base frequency (2.4GHz vs 1.8GHz)
Larger L3 cache size (35.75MB vs 8MB)
More modern manufacturing process (14nm vs 32nm)