AMD Ryzen Threadripper Pro 3995WX 's Advantages
Larger memory bandwidth (204.8GB/s vs 166.4GB/s)
Larger L3 cache size (256MB vs 128MB)
Lower TDP (280W vs 350W)
AMD Ryzen Threadripper 7970X 's Advantages
Released 3 years and 3 months late
Higher specification of memory (DDR5-5200 vs DDR4-3200)
Newer PCIe version (5 vs 4.0)
Higher base frequency (4GHz vs 2.7GHz)
More modern manufacturing process (5nm vs 7nm)