well that is reassuring... thank you for replying
also what setting affects the vram?
Resolution is the first, graphical density(quality) is the other. the third one that is less mentioned is field of range, field of range in which your gpu is calculating the actions on the current map largley play a factor in vram usage. Most games will not use over 1 gb of vram except when you get into games that are either heavy on quality or have a long field of vision(prominent examples would be skyrim and battlefield 3) which can go past 1gb and usually hit around 1.2-1.5gb vram at times.