Opteron 13KS EE 's Advantages
Higher specification of memory (1333 vs 4)
Larger L3 cache size (6MB vs 1.5MB)
Intel Xeon D 1531 's Advantages
Released 6 years and 7 months late
Newer PCIe version (3 vs 2)
Higher base frequency (2.2GHz vs 2GHz)
More modern manufacturing process (14nm vs 45nm)
Lower TDP (35W vs 50W)