What Is a PCIe Bus?
PCI-E (PCI-Express) is a general-purpose bus specification. It is advocated and promoted by Intel. Its ultimate design purpose is to replace the bus transmission interface in the existing computer system. A variety of application interfaces such as CPU, PCI, HDD, Network.
PCI-E bus
discuss
- Chinese name
- PCI-E bus
- Foreign name
- PCI-Express
- Promote the company
- Intel
- aim of design
- Replace the internal bus transmission interface of the current computer system
- Nature
- Common bus specifications
- Advantages
- Improved the data transmission capacity of the system bus
- PCI-E (PCI-Express) is a general-purpose bus specification. It is advocated and promoted by Intel. Its ultimate design purpose is to replace the bus transmission interface in the existing computer system. A variety of application interfaces such as CPU, PCI, HDD, Network.
- PCI-Express is a general-purpose bus specification. It was first advocated and promoted by Intel (also the previous 3GIO). Its ultimate design purpose is to replace the bus transmission interface in the existing computer system. This includes not only the display interface. , Also includes a variety of application interfaces such as CPU, PCI, HDD, Network. Thus, it can be used like Hyper-Transport to solve the bottleneck problem of data transmission in the current system and make adequate preparations for the performance improvement of peripheral products in the future. In the past, various devices of computer systems shared a bandwidth and adopted parallel interconnection, which greatly affected the overall performance of the system. At the same time, due to mutual interference, parallel signals also severely restricted the further increase in speed in the future. The PCI-E uses a serial interconnection method to transmit data in a point-to-point manner. Each device can enjoy the bandwidth independently, which greatly increases the transmission rate, and also creates conditions for higher frequency promotion.
- At the same time, PCI-E also has a variety of different speed interface modes, including 1X, 2X, 4X, 8X, 16X and higher-speed 32X. The transmission rate of the PCIE 1X mode can reach 250MB / S, which is nearly twice the 133MB / S of the original PCI interface, which greatly improves the data transmission capacity of the system bus. The other modes, such as 8X and 16X, are 8 times and 16 times faster than 1X. It can be seen that PCI-E can cope with both the basic application of the system and the high-speed data transmission of 3D graphics cards, which also provides a broad space for manufacturers' product design.