PCIe x4 SSD on PCIe slots, what would I expect?

Is there any benefit to putting a PCIe 4 SSD in a PCIe 3 slot? m 2 4 0 in 3 0 slot If gamers adopt a Z690 series motherboard, the chipset can provide 12 PCIe Gen4 lanes and, if all of them are allocated to slots, this is equivalent to m2 nvme slot NVMe drive will get maximum performance in a pcie 4 slot, but I'm trying to get a sense of how the latest drives perform in pcie 3

m2 sata slot The card physically has an X4 interface, so it could be plugged into an X4, X8, or X16 slot It can still physically only access 4 lanes (else