Xeon E7 8870 's Advantages
Higher base frequency (2.4GHz vs 2.2GHz)
Lower TDP (130W vs 340W)
Xeon w9 3575X 's Advantages
Released 13 years and 4 months late
Higher specification of memory (4800 vs 1333)
Larger L3 cache size (97.5MB vs 30MB)
More modern manufacturing process (10nm vs 32nm)