Yeah for some reason many people are asking questions like 'will I benefit from moving to 128Mb Geforce MX from my current Geforce3 64Mb'
Ram size doesn't matter with current applications. All displaycards that are less than a year or two old have plenty of ram for any graphics.
In the future with increased GPU speed and ram speed, larger ram will be needed. Just not yet, especially not with Aces High.