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

PCI Express 5 : Here's everything you need to know about pci 4 in pci 3 slot It should be backward compatible, but you will see less performance than if you had it in a PCIe slot since it runs at PCIe x8 instead pcie slot configuration gen1 gen2 gen3 It should be backward compatible, but you will see less performance than if you had it in a PCIe slot since it runs at PCIe x8 instead

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