PCIe vs PCIe : What's the difference?

PCIe 4 vs PCIe 3: Do you need Gen 4 in 2020? pcie 4 gpu in pcie 3 slot Under normal circumstances, if you use the RX 6500 XT on a PCI-E slot, that x4 won't be a that big a problem However, when you are stuck pcie slot height 4 lanes 4 of them are used to connect to the chipset So 20 lanes are available for direct connection 16x goes to PCIe Slot1

pcie slot sizes RX 7600 - PCIe 3 vs PCIe 4