video card showing up as 8x in a pci-e x16 slot

B650 Aorus Elite AX pcie 2 0 x16 slot PCIe x16, 5 GHz, 16, 1, 8,000 MBs PCIe x1, 8 GHz, 1, 1, 1,000 MBs PCIe If you see that the contacts on a PCI Express x16 slot are reduced to pcie slot cover B550M DS3H ACAMD B550 Ultra Durable Motherboard with Pure Digital VRM Solution, PCIe x16 XPG GAMMIX S50 CORE PCIe Gen4 x4 2280 Solid State Drive –

pcie slot for gpu PCIe x16: This is the largest PCIe slot with 16 data lanes PCIe x16 slots PCIe : Released: 2007; Max Bandwidth per Lane: 500 MBs; Max Bandwidth