AMD Ryzen Threadripper PRO 7995WX 's Advantages
Larger memory bandwidth (332.8GB/s vs 83.2GB/s)
Newer PCIe version (5 vs 4)
Larger L3 cache size (384MB vs 16MB)
AMD Ryzen 5 8400F 's Advantages
Released 6 months late
Higher base frequency (4.2GHz vs 2.5GHz)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (65W vs 350W)