PSA: GPU-Z shows PCI-Express x16 for Radeon RX 6500 XT / Navi 24. It really is x4 | TechPowerUp
RX 5500 XT is handicapped by PCIe 3.0. PCIe 4.0 shows huge improvement. [Investigated by PCGamesHardware.de, linked English video summary by BootSequence] : r/Amd