Achmed wroteSo far the acer travlemate is the only one with a decent graphic card that runs big games on average settings for a low price according to the graphic card chart .Does a 1 gb graphic card differ from 2gb or 512mb ones.
Memory doesn't matter, memory is used to render large images like running a 1080p picture on a 40" TV.
You should look for the graphics card number not the memory for example a 430M can't run all games at decent FPS.
Look for nothing less then 450M/550M because if you go lower than those you won't be able to game.
Please post the laptop you are going to buy
BEFORE buying it so that we can discuss if you can get a better one.