Still wondering if the new iPhone 5S worth’s the price of upgrading? If you’re a gamer the answer is yes. The 64-bit processor has a clear advantage over the 32-bit of the iPhone 5C (and 5) when running games such as Infinity Blade 3.
In this comparison by redmondpie you can notice the higher detail on the textures and the improved visuals on the light effects. And this is just the beginning!
http://www.youtube.com/watch?v=P3FJX_OWQis&feature=player_embedded#t=0