Accelerated Graphics Port
<hardware, graphics> (AGP) A bus specification by Intel which gives
low-cost 3D graphics cards faster access to main memory on personal computers
than the usual PCI bus.
AGP dynamically allocates the PC's normal RAM to store the screen image and to
support texture mapping, z-buffering and alpha blending.
Intel has built AGP into a chipset for its Pentium II microprocessor. AGP cards
are slightly longer than a PCI card.
AGP operates at 66 MHz, doubled to 133 MHz, compared with PCI's 33 Mhz. AGP
allows for efficient use of frame buffer memory, thereby helping 2D graphics
performance as well.
AGP provides a coherent memory management design which allows scattered data in
system memory to be read in rapid bursts. AGP reduces the overall cost of
creating high-end graphics subsystems by using existing system memory.
Specification.
(2004-07-19)
Nearby terms:
AC3 « ACA « ACAP « Accelerated Graphics Port
» accelerator » Accent » accept
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