The PCIe stands for Peripheral Component Interconnect Express. As suggested by the name only, the PCI Express Bus is powerful and faster than the conventional PCI Bus. The CPU or microprocessor chipset used PCIe-based motherboards comes with two bridges i.e memory bridge and I/O bridge (input/output). the processors usually have direct-X support. the DirectX is a collection of a programming interface to enhance the video, games, 3D, graphics performance.