True, but in real world use all that matters rendering at the resolution of the phone.Its relevant because different phones have different resolutions. If benchmarking was done only on native res, people could say "oh well that doesnt matter its because that phone has a lower res and pushes less pixels thats why its faster". It makes it a little more scientific. It would be weird to read [H]ard videocard reviews where every car is ran at a different resolution would it not? Thats why you have offscreen rendering of a standard resolution so you can compare.