Intel Xeon Gold 5515 's Advantages
Released 6 years and 4 months late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (22.5MB vs 13.75MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon W 2155 's Advantages
Higher base frequency (3.3GHz vs 3.2GHz)
Lower TDP (140W vs 165W)