My laptop is, as expected, not able to handle the game very well.
Core 2 Duo T9300, 2x2,5GHz
4GB (fairly fast) DDR2 ram + 1GB Intel Turbo memory
8600m GT w/ 512MB ram
Win 7 64bit
With all details at low, minimum ocean movement and no terrain (open ocean) it will go past 15fps.
I've also finished the first Sigita and first Greenpeace missions, they would however average far below 10fps (docking the Red Arrow 4 orwhateveritsnamed in Sidney Harbour with snow and fog was done with some skill in expectating ship movements far into the future, but mostly a lot of luck).
Slow cruising with the Esperanza around all the Bora Bora isles and reefs works fairly well, so I'll stick to that until i get home (on vacation in germany for a few weeks) to my gaming PC.