Graphics Cards: AGP, PCI and PCI-Express

There are three different interface standards for graphics cards: AGP, PCI or PCI-Express.  AGP or Accelerated Graphics Port is twice as fast as PCI and has direct access to the processor bypassing the PCI bus. It is also capable of utilizing system memory to read textures through a technology known as GART (Graphics Address Mapping Table). GART sets aside areas of the main system memory as