What is the difference between PCIe Gen 3 and PCIe Gen 4?

PCIe slots come in different physical configurations: x1, x4, x8, x16, x32 The number after the x tells you how many lanes (how data travels to

So in the first scenario, both physical x16 slots only provide 8 lanes, in the second scenario the first x16 slot provides 16 lanes (for full

pciex1 slot Read in Detail How to Identify PCIe Version of Slot ➤ motherboardhow-to

pcie expansion slot 1 x PCI Express x16 slot, supporting PCIe and running at x16 * The PCIEX16 slot shares bandwidth with the M2C_CPU connector