PCI Express x1 in a PCI Slot

x16 slot is the most capable slot of those and if you install an x16 supported card it works at fastest x8, x4 and x1 slots are

2*PCIe x1 5 EZ-Latch 6 Socket AM5 Supports AMD Ryzen Unlock the latch of the PCIe slot easily when remove the graphics card in the PCIe slot

x16pciexp slot PCIe x1: This is the smallest PCIe slot and has a single lane for data communication PCIe x1 slots are often used for less demanding expansion cards, such as

x16 slot A 1x slot can only output 10W of combined power from and 5V combined PCI-E 1x at is still not fast enough for any type of gaming, and