The iPhone 5 is expected to be release on Oct. 4 with a major graphics upgrade including 1 GB of RAM and dual-core Apple A5 chip and Imagination's PowerVR GX543 graphics silicon chip that is currently in the iPad 2.

With all that power, it's time to take a look back at all the most graphically demanding games for the iPhone. Some may have run a bit chunky before but with all that new RAM, they should run smooth as silk.

Here are the top 10 iPhone games with the most eye-candy already worth buying after you unwrap that new iPhone 5.