Opteron 6278 's Advantages
Higher base frequency (2.4GHz vs 2.1GHz)
Lower TDP (115W vs 165W)
Intel Xeon Gold 6338T 's Advantages
Released 8 years and 11 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (36MB vs 8MB)
More modern manufacturing process (10nm vs 32nm)