Xeon D 2712T 's Advantages
Released 11 years late
Higher specification of memory (2667 vs 1333)
Newer PCIe version (4 vs 2)
Larger L3 cache size (15MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)
Xeon L5639 's Advantages
Higher base frequency (2.133GHz vs 1.9GHz)
Lower TDP (60W vs 65W)