What are PCIe Slots in PC?

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

For example, the latest NVIDIA RTX 3080 PCIe gaming GPU should work fine in PCIe slot and not get a significant performance hit because,

pcie x 16 slot I have recently bought a B450 mobo, and it comes with CrossFire support The thing is, only one of the PCIe slot is x16, the other one is x4 I have a

pci 4 ssd in pci 3 slot Slot genügen Rechnerisch kämen wohl gerade mal etwas über 6Gbytes über den PCI Bus, da die RTX 4060ti nur 8 PCI Lanes nutzt