I ran the game fine with 1 gig. FPS were good and most goodies checked and sliders at half or full. You suffer only in high time compression and a lot of ships in you view because your hard driver start page filing and acting like RAM. This give you a jitter or two. Other than that if your card and processor are up to snuff, you should have a reasonably smooth game. Take it from me.....the low end of the spectrum computer guy
Anyway....welcome aboard.