AMD Ryzen Threadripper Pro 3995WX 's Advantages
Larger memory bandwidth (204.8GB/s vs 83.2GB/s)
Larger L3 cache size (256MB vs 16MB)
AMD Ryzen 5 8400F 's Advantages
Released 3 years and 9 months late
Higher specification of memory (DDR5-5200 vs DDR4-3200)
Newer PCIe version (4 vs 4.0)
Higher base frequency (4.2GHz vs 2.7GHz)
More modern manufacturing process (4nm vs 7nm)
Lower TDP (65W vs 280W)