What does pcle interface mean?

The pcle interface is the latest bus and interface standard. Its original name is "3GIO" and was proposed by Intel. Obviously Intel means that it represents the next generation of "I/O" interface standard.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

pcie is the latest bus and interface standard. Its original name is "3GIO", which was proposed by Intel. Obviously Intel means that it represents the next generation of I/O Interface standards. It was renamed "PCI-Express", or "PCI-E" for short, after it was certified and released by PCI-SIG (PCI Special Interest Group). This new standard will completely replace the current PCI and AGP, and ultimately achieve the unification of bus standards. Its main advantage is its high data transfer rate. The current highest 16X 2.0 version can reach 10GB/s, and it also has considerable development potential. PCI Express also has a variety of specifications, from PCI Express 1X to PCI Express 16X, which can meet the needs of low-speed devices and high-speed devices that will appear now and in a certain period of time in the future. Nowadays, mainstream motherboards can support PCI Express 1.0 16X, and some higher-end motherboards support PCI Express 2.016X, such as INTEL's P45, X48, AMD's 770, 780G, 790X and 790GX, and Nvidia GF8200. At present, PCI Express has basically completely replaced AGP. Just like PCI replaced ISA, this process has been completed. Although some old users are still using AGP interface graphics cards, all AGP graphics cards on the market have been discontinued, including AGP slots. The motherboard is also missing.

PCIE is a higher development of PCI

The latest version is PCI-E 2.0, and there is also PCI-E (version 1.0) that has not yet been delisted. The AMD RD890 chipset, which will be released in the second quarter of 2009, will be the first to support PCI-E 3.0 version. The bandwidth of version 2.0 is doubled compared to version 1.0, and the bandwidth of version 3.0 is doubled again compared to version 2.0, to 5GHz x 4.

The PCI Express 2.0 specification has made a major upgrade in the data transmission speed, that is, doubling the bus frequency from the previous 2.5Gbps to 5.0Gbps. This means that the previous PCI Express 2.0 x16 interface can double the Amazing 10GB/s bus bandwidth (1GB/s=8Gbps).

Important upgrade parts of PCI Express 2.0:

1. The focus is on the improvement of PCI Express bus frequency: the data transfer rate of each serial line doubles from 2.5Gbps to 5Gbps, and the bandwidth also follows Double.

　2. It can better support future high-end graphics cards. Even if the power consumption reaches 225W or 300W, it only needs to be powered by PCI Express alone.

　3. The new "Input Output Virtualization" (IOV) technology allows multiple virtual machines to share PCI devices such as network cards.

　4. The PCI-E cable sub-specification allows PCI devices to be connected to computers through standardized copper cables, and the speed of each line can reach 2.5Gbps. It is suitable for adding multiple network cards to high-end servers as Input and output expansion modules, etc.

　5. Finally, there is the long-term plan code-named "Geneseo". Developed in cooperation with industry giants such as Intel and IBM, this technology allows co-processors such as graphics processing units and encryption processing units to be better connected to the central processor in a confidential manner.

　6. Improvements to dynamic link speed and link width management, as well as active power management (ASPM)

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