How to find memory size of VGA card
Sometime you need to know the memory size of your vga card. This is needed if you are replacing your vga card, or you need to reconfigure the resolution by editing the /etc/X11/xorg.conf file. In some Linux distributions, like Slackware here is the xorgconfig program which you can use instead of editing the xorg.conf file. Whichever methiod you choose, you need to know the memory of your vga card. In Linux you can type lspci and look for the VGA card entry. You will need to take note of the hexadecimal value at the left most column. With this hexadecimal value, you will type the comand:
lspci -v -s <hexadecimal value>
Do not include the greater than and the smaller than brackets when executing the command. The output will show you the memory size of your VGA card.
If you want to confirm this what you can do is to install the VGA card in XP and you can go to Start then Run and type in the term dxdiag and then click OK. A popup screen for DirectX will open. Go to the Display tab and look at the left side. You will find your video card or chips and the memory amount. Another way is to right click your desktop select properties at the display properties box select the settings tab click the advanced button, select the adapter tab