OK; just to give an idea. I haven't been adding or upgrading my desktop components for a while now; but it's an AMD XP 1900+, 512 MB 2700 DDRRAM, and a Geforce 3 Ti500. On 3D Mark, it gets to around 7600 marks. From the posts here, the 5660 will hit 7250-ish on drivers and without overclocking; according to Adam's tests, it can go as high to 7700 with overclocking. So, I'll say in terms of graphic performance alone, it'll about match what I'm getting right now on my desktop - and the Sager 5660 has the added value of having a substantially faster native processor too.