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 10MB)
More modern manufacturing process (10nm vs 32nm)
Intel Xeon E5 2643 's Advantages
Higher base frequency (3.3GHz vs 2.2GHz)
Lower TDP (130W vs 340W)