PCI Express 4 vs PCIe 3: Is there a performance improvement?

What does the X4 mean in an PCIe Gen X4 NVME drive? pci 4 in pci 3 slot Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express pcie 4 card in pcie 3 slot #4 pci-e gpu are backwards compatible with pci-e slots, you might lose a few fps here and there but nothing to be concerned for

pcie slot function PCIe Gen 3 vs PCIe Gen 4 PCIe offers twice the data rate and maximum bandwidth of PCIe , allowing faster data transfers The standard