Is PCIe worth it?

What is PCIe ? pcie 5 0 x16 slot CPU: 1 x PCI Express x16 slot, supporting PCIe and running at x16 * The PCIEX16 slot shares bandwidth with the M2C_CPU connector pcie slot gpu In ASUS 「PCIe x16 Slots - 5」

pcie slot width GPUs are usually installed in the top x16 slot, as it has the most bandwidth and, traditionally, the most direct connection to the CPU Modern PCIe SSDs use