What are the Differences between Gen4 and Gen3 PCIe SSDs?

PCIe vs : What's the Difference and Which Is Better pcie 4 in pcie 3 slot ssd b) Which SSD are you using with 5060 and any NVMe boot or compatibility problems? c) Will Dell provide a screw with the slots? (Samsung 970 pcie m2 slot The card physically has an X4 interface, so it could be plugged into an X4, X8, or X16 slot It can still physically only access 4 lanes (else

pcie cem slot Gen 4 is faster than Gen 3