The difference between PCIe x1, x4, x8, x16 and x32

1) First is simply looking at the motherboard, many times printed on the PCB near the PCIE slot is the actual X4 or X16 or whatever it happens

By specification, all PCIe cards are backwards compatible with the lowest bandwidth x1 lane slots If the x1 slot is designed with an open end,

x16pciexp slot Yes any pcie xanything card will work in a x16 slot, i have a pcie x1 asus xonar stx in a 16x slot right now x4 and x8 cards will also work in

x1 pcie slot The PCI Express x1 to x16 adapter accommodates low profile x2, x4, x8, x12 or x16 PCI Express cards, eliminating the cost and hassle of upgrading a PCIe card or