Opteron 1381 's Advantages
Higher base frequency (2.5GHz vs 2.2GHz)
Lower TDP (115W vs 300W)
Intel Xeon w9 3475X 's Advantages
Released 13 years and 8 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Larger L3 cache size (82.5MB vs 6MB)
More modern manufacturing process (10nm vs 45nm)