Detroit Borg, a tech channel on YouTube has released a fantastically thorough comparison video showing the performance difference between the iPhone 5 and iPhone 4S. Within the video, the host compares various benchmark scores as well as running some real-life app performance tests. Both phones are loaded with the same apps, settings etc. I have to admit, I did my own comparison off camera to see if I could spot the difference, but it was nowhere near as in-depth as this one.
Is the iPhone 5 worth the extra cost?
(Thanks to 9to5Mac for shining a light on this.)