I am playing this on a 3 year old laptop with the following specs:
Intel Pentium M725 @ 1.6GHz, 400MHz FSB, 2MB L2 cache
ATi Mobility Radeon 9700, 64MB at stock clock.
512MB DDR RAM
I am playing with all details on, 1280 x 768 (wide screen) resolution, high ship quality and extras, high planet quality and extras. Definitely playable, although requires a person with patience. Only trouble I have is load times and the framerate killer which is the research screen for some unknown reason. For Ironclad folks out there, may I enquire as to why the research screen acts so strangely? It is highly unresponsive. Now that I think about it, the cursor was moving normally so it isn't a framerate issue. I have to hover over an icon for about 3 seconds, click, and wait another 3 seconds for it to register the click.The cursor and what is going on behind the screen is totally unaffected. I've engaged in battle with a hundred ships at said settings and there's no noticeable lag.