The RX480 is pci-e 3. Pci-e is currently forward and backwards compatible anyway. Pci-e 4.0 hasnt been released yet, and likely wont be available for some time.
The RX480 is pci-e 3. Pci-e is currently forward and backwards compatible anyway. Pci-e 4.0 hasnt been released yet, and likely wont be available for some time.