Opteron 6274 's Advantages
Lower TDP (115W vs 185W)
Intel Xeon Gold 6326 's Advantages
Released 9 years and 5 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 2)
Higher base frequency (2.9GHz vs 2.2GHz)
Larger L3 cache size (24MB vs 16MB)