[colechristensen]

The Intel i9-7900x has 44 PCIe 3.0 lanes and wikipedia tells me each lane has throughput 984.6 MB/s so there's ~40 GB/s, maybe fast compression could make a small integer multiple.

https://www.intel.com/content/www/us/en/products/processors/...

[brodock]

AMD Threadripper has 64 in all available models: https://en.wikipedia.org/wiki/Zen_(microarchitecture)