Pci Express Specification =link= -

Since its inception, the specification has roughly doubled its bandwidth every three to four years.

is a high-speed serial computer expansion bus standard designed to replace older parallel bus standards like PCI, PCI-X, and AGP. It is the de facto standard for connecting high-speed components to a computer's motherboard, including graphics cards, SSDs, hard drives, Wi-Fi cards, and more. pci express specification

The PCIe specification is backward compatible, meaning a PCIe 4.0 device will work in a PCIe 3.0 slot (though at 3.0 speeds). Below is the evolution of raw bandwidth per lane: Since its inception, the specification has roughly doubled

The PCIe specification defines a layered architecture consisting of three distinct logical layers: The PCIe specification is backward compatible, meaning a

Unlike the older PCI standard, which used a parallel bus architecture, PCIe uses a serial point-to-point architecture, allowing for higher clock speeds and more efficient data transfer.