Intel Xeon D 1518 's Advantages
Higher base frequency (2.2GHz vs 1.8GHz)
Lower TDP (35W vs 225W)
Xeon 6756E 's Advantages
Released 9 years and 3 months late
Higher specification of memory (6400 vs 4)
Newer PCIe version (5 vs 3)
Larger L3 cache size (96MB vs 1.5MB)
More modern manufacturing process (5nm vs 14nm)