AMD’s future Navi 31 GPU will get support for PCIe 5.0. This is evident from the Linux kernel patches for GFX11 as the next generation is called internally. Twitter user Kepler_L2 He shares some of the details he discovered. In addition to pcie 5.0, there is also support for AV1 encoding.
The Zen 4-based Ryzen 7000 series Raphael will also receive support for pcie 5.0, allowing AMD to offer a complete processor, gpu and motherboard platform with the next generation of interconnects upon release. It is not yet clear whether other Navi 3x GPUs will also receive PCIe 5.0. This hasn’t been confirmed for Nvidia’s next generation either, but the Hopper architecture for data centers is already using gen 5. with pcie 3.0 on older platforms.
Source: Hardware Info