How to calculate the needed amount of video RAM Tags: Graphics Cards Formula RAM Video Screen Resolution Graphics Last response: November 28, 2002 1:52 PM in Graphics & Displays Share Frisbee November 25, 2002 5:27:44 PM Hello people; I have a question: What is the formula with which you can calculate the minimum necessary amount of video RAM to display a certain screen resolution and color depth? For instance, I seem to remember that for a resolution of 640x480 and 16-bit color depth, you need 1Mb of video RAM, that is: for a 2D screen. So: what is this formula to calculate the nesessery amount of video RAM for a certain 2D screen resolution? And is the formula for 3D images any different? Many thanks! Carl Brussels More about : calculate needed amount video ram Col_Kiwi November 25, 2002 6:18:51 PM (((WxHxC)/8)/1024)/1024) W = Screen width in pixels H = Screen height in pixels C = color depth in bits per pixel ex. 640x480x16 = 586KB -Col.Kiwi chuck232 November 26, 2002 9:36:13 PM There's more than just that I think. For example playing UT2003 in max settings (but no aniso or AA) at even 1280x1024, it takes up much more than 64MB of VRAM... ...And all the King's horses and all the King's men couldn't put my computer back together again... Can't find your answer ? Ask ! Get the answer Frisbee November 28, 2002 1:52:14 PM You are right. But I think that the formula stated above is for 2D-screens only. So, does anybody know if there is a "general formula" with which you can calculate the necessary amount of video RAM for 3D at any given resolution/color depth combination? So, not for 2D, but for 3D. Many thanks; Carl Brussels, Belgium Can't find your answer ? Ask ! Publish Related resources: ForumCalculate exact amount of RAM below 4 GB ForumHow To Calculate Graphics Card Needed ? ForumHow do you calculate RAM /core for an i7? ForumHow important is amount of Video RAM ForumDo Psu only draws that amount of power which is needed ? ForumDo i need a good amount of Ram for games with lots of stuff on screen? ForumTrinity GPU: How much RAM amount would you choose? ForumHow do electric companies calculate the cost? ForumGA-G41M-ES2L - how to change the amount of VGA shared RAM ? ForumHighest amount of ram ? ForumHow to calculate if you have a bottleneck in your new build? ForumTotal Fan Noise - how to calculate ?? ForumHow would one calculate total amp rating on Dual +12V rails? ForumHow to calculate VRAM demand pcs ForumHow do i calculate the cash im spending with a 24\day pc turned on? ForumHow do I calculate the max Amp for +12 rails? ForumPlease help me calculate power requirement Forum1Gb vs 2Gb graphics ForumUpgrade laptop video? Forumvideo upgrade for a 3 year old system More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !