Precision 7740 - PCIe Interface 3rd Gen or 4th Gen?

PCIe vs PCIe RX 7800XT @ 16GB PC GAMES pcie 4 0 in 3 0 slot 2 slot would the ADT-Link R43SG setup run at 32Gbps or 64Gbps? I have heard that high quality gen 3 cables could transfer at gen 4 speeds but pcie 4 gpu in pcie 3 slot A PCIe SSD card can be inserted into a motherboard having PCIe slots, but the SSD will not be able to make use of the greater bandwidth

pcie nvme slot What is the point of even buying a video card that uses PCIe if people have motherboards that only have PCIe slots?