Opteron 6328 's Advantages
Higher specification of memory (1866 vs 4)
Higher base frequency (3.2GHz vs 2.2GHz)
Lower TDP (115W vs 165W)
Xeon Platinum 8276 's Advantages
Released 6 years and 1 months late
Larger L3 cache size (38.5MB vs 8MB)
More modern manufacturing process (14nm vs 32nm)