Intel Xeon E5 2660 's Advantages
Lower TDP (95W vs 350W)
Intel Xeon Gold 6458Q 's Advantages
Released 10 years and 10 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 3)
Higher base frequency (3.1GHz vs 2.2GHz)
Larger L3 cache size (60MB vs 20MB)
More modern manufacturing process (10nm vs 32nm)