What resolutions does the Voodoo Graphics ™ support?
The Voodoo Graphics ™ chipset supports up to 4 MB frame buffer memory. Presuming double buffering and a depth buffer, a 2MB framebuffer will support a resolution of 640×480. With 4 MB frame buffer, 800×600 is possible. Unfortunately 960×720 is not supported. The Voodoo Graphics ™ chipset requires that the amount of memory for a particular resolution must be such that the vertical and horizontal resolutions must be evenly divisible by 32. The video refresh controller, though can output any particular resolution, but the “virtual” size required for the memory footprint must be in dimensions evenly divisible by 32. So, 960×720 actually requires 960×736 amount of memory, and 960x736x2x3 = 4.04MBytes. However, using two boards with SLI, or a dual Pixelfx SLI board means that each framebuffer will only have to store half of the image. Thus 2 times 4 MB in SLI mode are good up to 1024×768, which is the maximum because of the overall hardware design.
