Opteron 2220 's Advantages
Higher base frequency (2.8GHz vs 2.2GHz)
Intel Xeon D 1518 's Advantages
Released 8 years and 1 months late
Higher specification of memory (4 vs 2)
Newer PCIe version (3 vs 1)
More modern manufacturing process (14nm vs 90nm)
Lower TDP (35W vs 95W)