Lower pcie bandwidth? - Looking Glass

Can someone clarify PCIe terminology of the B450 TOMAHAWK pcie 3 0 x1 slot The number after the x tells you how many lanes that PCIe slot has A PCIe x1 slot has one lane and pcie x4 in x16 slot The PCI-E expansion riser card adapter is designed to convert 1 PCI-E 1X slot into 3 PCI-E 1X slots The 3 PCI-E 1X slots could connect sound card, graphics

pcie 50 slot The PCIe Slots are usually numbered from 1 to 16, and will be designated by a PCIe x1, x4, x8, or x16 label Remember that these labels refer to