Opteron 2220 's Advantages
Higher base frequency (2.8GHz vs 2.4GHz)
Lower TDP (95W vs 129W)
Xeon D 2799 's Advantages
Released 15 years late
Higher specification of memory (3200 vs 2)
Newer PCIe version (4 vs 1)
More modern manufacturing process (10nm vs 90nm)