http://traxnet.wordpress.com/2011/07/16 ... rn-gpus-1/This is a very exiting articles in three parts, about Text/2D/3D graphics operations carry out by first to modern graphics cards
The second part talks a little about DMA engine in graphics card perhaps for transferring data from the network directly to the video memory (frame buffer video? ?).
http://traxnet.wordpress.com/2011/07/18 ... rn-gpus-2/