On Thu, 2003-12-11 at 15:23, Rick Stevens wrote: > Don't forget the color depth. If you go to 8- or 16-bit color rather > than the 24-bit color, you cut your memory requirements by 33-66%. You > can then get the 1152x864 size, but not as many colors. Here is the > video RAM needed for an 1152x864 display: > > 24-bit: 24MB > 16-bit: 15MB > 8-bit: 7.5MB > Those numbers are very "generous" ... ;) > If all you can give is 8MB, you're limited to an 8-bit 1152x864 display > (256 colors). The formula is: > > video RAM needed (in MB) = (width x height x number-of-bits)/1048576 This result of the above formula is mega bits, not mega bytes. You need to divide the result by 8 to get the video RAM in MB. Therefore, a display of 1152x864x24 requires slightly less than 3MB of video RAM. Kevin Freeman
