Graphics address remapping table: Difference between revisions

Revision as of 00:28, 29 December 2013

Revision as of 00:35, 29 December 2013

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The '''graphics address remapping table''' ('''GART'''), sometimes known as the '''graphics translation table''' ('''GTT'''),<ref>{{cite web|author=freedesktop.org|url=http://dri.freedesktop.org/wiki/GART|title=GART|accessdate=2010-03-05}}</ref> is an [[IOMMU|I/O memory management unit]] (IOMMU) used by [[Accelerated Graphics Port]] (AGP) and [[PCI Express]] (PCIe) [[graphics card]]s. The GART allows the graphics card [[direct memory access]] to the host system memory, through which buffers of [[texture mapping|textures]], [[polygon mesh]]es and other data are loaded.

GART It'sis used as a means of data transfer between [[primary storage|physical memory]] and [[video memory]], but can also be used to expand the amount of video memory available for graphics cards—particularlycards &mdash; particularly for cards with no dedicated video memory, such as [[Intel]]'s [[integrated graphics]] solutions.

==Operating system support==