i dont know why people look at memory when they are looking at graphics card..
memory does matter but not that much, what important is how many pixel shader and processing cores you have in your graphics cars.
i ll give u an example a 320mb 8800gts will crush a 9500gt 1gb in gaming performance..
9500gt is no way near 8800gts.
if you need to play games on computer you need graphics card period, and minimum a graphics card that costs more than 8000rs or 100$...
even 9500gt struggles on gta 4