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PCI-Express is the latest bus and editing summary editing information module
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Details / pcie editing
Gigabit PCIe card its main advantage is the high data transfer rate, the highest version of the current 16X2.0 can reach 10GB / s, but there is considerable potential for development. PCI Express also has a variety of specifications, from PCI Express 1X to PCI Express 16X, to meet a certain period of time the future of low-speed equipment and high-speed equipment needs. The latest interface to PCI-Express is the PCIe 3.0 interface with a bit rate of 8GB / s, about twice the bandwidth of the previous generation, and includes a range of important new features such as transmitter and receiver equalization, PLL improvement, and clock data recovery. Function to improve data transmission and data protection performance. INTEL, IBM, LSI, OCZ, Samsung (planned), SanDisk, STEC, SuperTalent and Toshiba (planned), and for massive data growth allows users to larger, more scalable systems, PCIe 3.0 technology to join the latest LSI MegaRAID controller and HBA products, excellent performance, you can achieve greater system design flexibility. Of course, the mainstream motherboard can support PCI Express 1.0 16X, there are some higher-end motherboard supports PCI Express 2.016X, such as INTEL's P45, X48 and AMD's 770, 780G, 790X and 790GX and Nvidia GF8200 and so on. The current PCI Express to replace the AGP, as the original PCI to replace the ISA, the process has been the transition is completed, although there are some old users in the AGP interface with the video card, but the market AGP graphics stopped selling, including AGP slot Of the motherboard is also missing.PCI-E 3.0 / pcie editing
Pcie historical traces of common video cards are PCI-E 2.0 standard, developed in 2007, the rate of 5GB / s, x16 channel bandwidth up to 8GB / s. In accordance with the original road map, PCI-E 3.0 standard will enter the market in 2010, but in fact it was completed in 2010 PCI-E 3.0 standard final program, and until one year after the release of HD 7970 really have graphics support PCI -E 3.0.PCI-E 3.0: Higher Bandwidth, Lower Latency PCI-E 3.0 targets a doubling of the bandwidth to 1GB / s compared to PCI-E 2.0. To achieve this goal, PCI-E 3.0 Signal frequency from 2.0 5GT / s increased to 8GT / s, the encoding scheme from the original 8b / 10b into a more efficient 128b / 130b, other specifications are basically unchanged, each cycle still transfer 2-bit data to support multi-channel parallel transmission. In addition to doubling the bandwidth brought about by a substantial increase in data throughput, PCI-E 3.0 signal faster, corresponding data transmission delay will be lower. In addition, for the software model, power management and other aspects of specific optimization. In short, PCI-E 3.0 just like high-speed road, the vehicle runs faster, lower starting interval, seat more comfortable.
PCIE Meaning / pcie Edit
Is a higher development of PCI
The latest version for the PCI-E 2.0, there are not yet delisting PCI-E (ie version 1.0). The AMD RD890 chipset, which was released in the second quarter of 2009, will be the first to support PCI-E 3.0. 2.0 doubles the bandwidth of 1.0, and 3.0 doubles the bandwidth of version 2.0 to 5GHz x 4. The PCI Express 2.0 specification is a major upgrade in data transfer speed, doubling from the previous 2.5Gbps bus frequency to 5.0Gbps, which means that the previous PCI Express 2.0 x16 interface can double the staggering 10GB / s bus Bandwidth (1GB / s = 8Gbps).
2.0 upgrade section
1, the focus is PCI Express bus frequency upgrade: each serial line data transfer rate from 2.5Gbps doubled to 5Gbps, bandwidth also will double. 2, can better support the future high-end graphics cards, even if the power consumption of 225W or 300W only PCI Express can be a separate power supply. 3, the new "input and output virtualization" (IOV) technology that allows multiple virtual machines to share network card and other PCI devices. 4, PCI-E cable sub-specification allows PCI devices through a standardized copper cable access to the computer, and each line speed can reach 2.5Gbps, for high-end servers to join multiple network cards as input and output expansion modules and other occasions . 5, the last is code-named "Geneseo" long-term planning. The technology and Intel, IBM and other industry giants to develop, allowing graphics processing unit, encryption processing unit co-processor and better close with the central processing unit. 6, the dynamic link speed and link width management, and active state power management (ASPM) related improvements.
PCIE specification / pcie editing
Number of transmission channels Pin Total number of the main interface area Total length of the main interface area 1X 36 14 25 mm 7.65 mm 4X 64 42 39 mm 21.65 mm 8X 98 76 56 mm 38.65 mm 16X 164 142 89 mm 71.65 mm Specifications Bus width Operating Pulse Rate PCI-E 1X 8-bit 2.5 GHz 512 MiB / s PCI-E 2X 8-bit 2.5 GHz 1.0 GiB / s PCI-E 4X 8-bit 2.5 GHz 2.0 GiB / s PCI-E 8X 8 bits 2.5 GHz 4.0 GiB / s PCI-E 16X 8-bit 2.5 GHz 8.0 GiB / s
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