Can a PCIe graphics card work on a PCIe slot?

PCIe vs : What's the Difference and Which Is Better pcie 4 0 in 3 0 slot With options for 1x, 2x, 4x, 8x, and 16x slot configurations, PCI Express doubles the speed of PCI Express , increasing performance from pcie slot size By itself, PCI-Express x4 seems like plenty of bandwidth, 8 GBs per direction, until you realize that you also need a PCIe Gen capable

pcie slot length 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