Intel Xeon Gold 5318N 's Advantages
Larger L3 cache size (36MB vs 22.5MB)
Lower TDP (150W vs 165W)
Intel Xeon Gold 5515 's Advantages
Released 2 years and 8 months late
Higher specification of memory (4800 vs 2667)
Newer PCIe version (5 vs 4)
Higher base frequency (3.2GHz vs 2.1GHz)