Intel Xeon E5 2665 's Advantages
Higher base frequency (2.4GHz vs 2.2GHz)
Lower TDP (115W vs 340W)
Xeon w9 3575X 's Advantages
Released 12 years and 5 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (97.5MB vs 20MB)
More modern manufacturing process (10nm vs 32nm)