Opteron 8222 's Advantages
Lower TDP (95W vs 280W)
AMD Ryzen Threadripper Pro 3945WX 's Advantages
Released 12 years and 11 months late
Higher specification of memory (DDR4-3200 vs DDR2-667)
Newer PCIe version (4.0 vs 1)
Higher base frequency (4.0GHz vs 3GHz)
More modern manufacturing process (7nm vs 90nm)