This is Apple’s first in house SoC (System on Chip) and it combines an ARM Cortex-A8 CPU with a PowerVR GPU. It is used in iPad and iPhone4 and iPod Touch. For more details you can either have look at the article or you may download the die floorplan or the die utilization report below.
The die floorplan is a >10k pixel image of the die which allows you to zoom in like your using a microscope instead of your computer.
The die utilization report gives you a lot of images and measurements for the ones who really need more detailed insights of the chip. It’s FREE so give it a try.