![]() ![]() Generally, PCI Express refers to the actual expansion slots on the motherboard that accept PCIe-based expansion cards and the types of expansion cards themselves. Dividing the bus enhances overall system efficiency. PCI Express, technically Peripheral Component Interconnect Express but often seen abbreviated as PCIe or PCI-E, is a standard connection for internal devices in a computer. AGP 2.0 added 4x signaling and was capable of operating at 1.5V, and AGP 3.0 was capable of double the transfer speeds. Expansion bus: This supports any add-on devices by means of the expansion slots and runs at a steady rate, based on the specific bus design. It also allows 3-D textures to be stored in main memory rather than video memory.ĪGP is available in three different versions, the original AGP version mentioned above, AGP 2.0 that was introduced in May 1998, and AGP 3.0 ( AGP 8x) that was introduced in November 2000. ![]() AGP also supports two optional faster modes, with a throughput of 533 MBps and 1.07 GBps. The AGP channel is 32-bits wide and runs at 66 MHz, a total bandwidth of 266 MBps and much greater than the PCI (peripheral component interconnect) bandwidth (up to 133 MBps). Below is an illustration of what the AGP slot may look like on your motherboard. Developed by Intel and introduced in August 1997, AGP introduces a dedicated point-to-point channel that allows the graphics controller direct access to the system memory. Short for accelerated graphics port, AGP is an advanced port designed for video cards and 3D accelerators. ![]()
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