In other words, don’t expect a PCIe 5.0 SSD to perform at its rated speed on a PCIe 3.0 computer. Speaking of which, you can expect roughly 3.5GBps max from PCIe 3.0, 7.5GBps max from PCIe 4.0 ...
But if you're a style-conscious, speed ... 3.0 interface. (Much more about that in a moment.) However, if you're transferring large files such as videos often, you may want to spring for a PCIe ...