Guild Wars

I play occasionally on a Dell Inspiron (I dont know the model; it's not mine) and it seems to work pretty well. Internet connection is another factor as well (all the machine power in the world wont help you if your connection is terrible). But in general, I'd say it works fairly well on a laptop, though I do recommend playing with a mouse and not the touch-pad.

I'm actually playing it on my laptop. It seems to hold out OK, but if it gets crowded, my computer freaks itself out. D:

My previous laptop couldn't take the framerate per second at ALL. It just collapsed and took me literally HOURS just to start walking.