Formula for estimating video memory usage?

[AgentZap]

I think I read in one of my architecture books that if you multiple something similar to your resolution by color depth you get the approximate amount of video memory required to display your screen?

Does anyone have this offhand?

 

[xtknight]

Check out this document.

http://www.rwc.uc.edu/koehler/comath/44.html



? bytes = number of pixels * bytes per pixel

Example:

(1280x1024) * (32/8) = 5242880 bytes

Convert to megabytes:
5242880/(1024*1024)=5 MB for 1280x1024 at 32bpp