PCIe vs PCIe

using pcie 4 in 3 slot   Dan disturbed slot demo

As with previous generations, the standard simply doubles the speed that the PCIe slot runs at It now provides about 2GBs per lane

However, they are not even close to using the bandwidth offered by the PCIe 3 slot Contemporary graphics cards cannot fully utilize PCIe 4  PCIe UD Slot X：PCIe x16 slot with 10X strength for graphics card Ultra-Fast Storage：3* slots, including 1* PCIe x4; Efficient Overall

narcos slot review I have a WD black SN850 500GB in my _1 slot on my ASUS ROG Strix x570i mobo The only thing I can find in bios is set to _1 link = Gen 4  A single PCIe slot can now support x16, x8, x4, x2, or x1 lanes For example, PCIe x4 indicates a Gen 3 expansion slotcard with four lanes