Additionally, Nvidia claims its feature will work equally well with Intel and AMD processors and can use the PCIe 3.0 bus, while AMD has already said that its solution requires an AMD Ryzen 5000 series processor, X570 motherboard, and Radeon RX 6000 GPU to work. Why Ampere only? Because if this is Nvidia supporting re-sizable BAR, or even something similar, I don't think Ampere has such special hw so that pre-Ampere GPUs could not be supported. And I am not asking because I am desperate for few fps in selected games. Is just that Nvidia has not been artificially limiting anything for quite some time. Might need a BIOS upgrade which would complicate pre-Ampere support.