whats the difference between PCIEX16 & PCIEX4??

whats the difference between PCIEX16 & PCIEX4?? pciex16 slot It seems that NVMe drives plugged into the slot they are designed for use 4 lanes, but if you can plug them into the PCIe x16 slot, they avoid pciex16 slot configuration But can you plug that card into a PCI-Ex16 slot AND have it work? Or My motherboard has PCIe x16 I also have

pciex16 slot configuration Hello, we need to connect another device through the pcie x16 slot of AGX Orin, and the other device can start normally only after AGX Orin

game king slot machine Pcie x16 slot into multiple x4 slots · PCIE Bifurcation · IBM 69Y5321 M4 PCIe Gen-III Riser Card 2 · Cablem ATIC MSI afterburner says my GPU temp is 30 I'm quite confused When I googled PCIEX16 results are referring to PCI-e x16 slot of the motherboard