Patent ID: 8035645

Claim:
In a computer system, a method for rendering an image using multiple graphics devices, the method comprising: (a) generating pixel data for a first portion of an image using a first graphics device coupled to a system bus; (b) generating pixel data for a second portion of the image using a second graphics device coupled to the system bus; (c) generating pixel data for a third portion of the image using a third graphics device coupled to the system bus; (d) transferring at least a portion of the pixel data for the third portion of the image from the third graphics device to a target one of the first and second graphics devices via the system bus; (e) transferring the pixel data for at least the second portion of the image from the second graphics device to the first graphics device; and (f) transferring the pixel data for the first, second and third portions of the image from the first graphics device to the display device, wherein a first path on the system bus from the third graphics device to the first graphics device has a different width than a second path on the system bus from the third graphics device to the second graphics device, and wherein a larger portion of the pixel data for the third portion of the image is transferred over a wider path of the first path and the second path, and a smaller portion of the pixel data for the third portion of the image is transferred over a narrower path of the first path and the second path.