AMD Ryzen 5 3500X 's Advantages
Lower TDP (65W vs 280W)
AMD Ryzen Threadripper Pro 3945WX 's Advantages
Released 10 months late
Larger memory bandwidth (204.8GB/s vs 51.2GB/s)
Newer PCIe version (4.0 vs 4)
Higher base frequency (4.0GHz vs 3.6GHz)
Larger L3 cache size (64MB vs 32MB)