دوستان این توضیحی هستش که توی سایت اپل در مورد چیپ A4 نوشته:
The A4 chip inside iPad was custom-designed by Apple engineers to be extremely powerful, and yet extremely power efficient. So the performance is unlike anything you’ve ever seen on a touch-based device. Which makes iPad fantastic for everything from productivity apps to games. But at the same time, the A4 chip is so power efficient that it helps iPad get up to 10 hours of battery life on a single charge. And iPad is available with a choice of 16, 32 or 64GB flash storage.4 Which gives you lots of room for your photos, movies, music, apps, and more.