Looking in the BIOS of my Aorus Ultra x570 motherboard, it seems to show that my RTX 2080 is only using PCIE 1.0. It does show it running at 16x, but 16x using PCIE 1.0 is obviously a lot slower…

x570 Aorus Ultra showing Videocard using PCIE 1.0?

Source: [H]ardOCP – x570 Aorus Ultra showing Videocard using PCIE 1.0?