My cheap little dell laptop is the most solid machine I have in my house and I haven't seen it crash yet and I half suspect it's because it's the only one with Intel gpu only in it :) . My tower machine can go a few days without crashing but inevitably it will whether it's 3 days or 1 week. Nvidia card. It's not often enough to really worry about but I've been thinking about switching to an AMD card, if I can find a second hand one reasonably priced.