It depends. Did you group properly? You can't stop a 480 X 640 render if it's not done right or you're trying to render the almost impossible. It depends on so many things like I'm not even going to start listing them off. Max setting is sort of overrated. For almost no improvmesnt it takes forever to render. Then what you going to do with the picture? Make it or save it as a jpg and post in the gallery? Dual will not save you much. You can't take the counter to heart, it's just a estimate and depending on the settings and content it could render three more full passes that are not even on the counter. I find when it says 50% it's about 75% done.