Intel Xeon W3690 's Advantages
Higher base frequency (3.466GHz vs 3.2GHz)
Lower TDP (130W vs 165W)
Intel Xeon Gold 5515 's Advantages
Released 12 years and 10 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 2)
Larger L3 cache size (22.5MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)