Intel Xeon D 1581 's Advantages
Released 9 years late
Newer PCIe version (3 vs 1)
More modern manufacturing process (14nm vs 90nm)
Lower TDP (65W vs 68W)
Opteron 8218 HE 's Advantages
Higher specification of memory (667 vs 4)
Higher base frequency (2.6GHz vs 1.8GHz)