COMPUTER FUNDAMENTALS

Detailed explanation-1: -One of the key differences between the PCI Express bus and the older PCI is the bus topology; PCI uses a shared parallel bus architecture, in which the PCI host and all devices share a common set of address, data, and control lines.

Detailed explanation-2: -PCI Express maintains software compatibility with traditional PCI but replaces the physical bus with a high-speed (2.5 Gb/s) serial bus.

Detailed explanation-3: -Sure, the speed for PCIe is faster than PCI. Take the PCIe x1 as an example, it is at least 118% faster than PCI. It’s more obvious when you compare the PCIe-based video card with a PCI video card, the PCIe video card x16 type is almost 29 times faster than PCI video card.

Detailed explanation-4: -The Peripheral Component Interconnect (PCI) bus is an expansion bus standard developed by Intel that became widespread around 1994. It was used to add expansion cards such as extra serial or USB ports, network interfaces, sound cards, modems, disk controllers, or video cards.

Detailed explanation-5: -PCIe speed gets an upgrade in the newer iteration. PCIe 3.0’s throughput is 1GB per second per lane, providing an overall data transfer rate or bandwidth of up to 32GB/s total. PCIe 4.0 doubles the 3.0 throughput rate per lane, giving users a transfer rate of up to 64GB/s.