An AMD Epyc can have 128 PCIe 4.0 lanes, each 8GB/s, meaning it tops out at a measely 1TB/s of total bandwidth. And you can in fact saturate that with the bigge

An AMD Epyc can have 128 PCIe 4.0 lanes, each 8GB/s, meaning it tops out at a measely 1TB/s of total bandwidth. And you can in fact saturate that with the bigger Epycs. However, You will probably loose 4 lanes to your chipset and local disk setup, maybe some more depending on server setup but it'll remain close to 1TB/s.