The fourth generation Apple TV upgrades to the 64-bit A8 processor found in Apple's iPhone 6. This is significantly more powerful than the A5 chip found in the current 3rd generation Apple TV and will allow for graphics quality that could compete with popular gaming consoles like the Playstation 4 and Xbox One. The new Apple TV 4G also has onboard storage, unlike the 2nd and 3rd generations which have no storage capacity aside from some flash memory for buffering.
On the software side, the Apple TV 4 has a dedicated App Store, opening it up to third party apps. It also employs Siri, which makes for seamless interaction with TV content and apps. The all-new Siri Remote includes a glass panel for touch input such as swiping and touch selection, and a built-in accelerometer and gyroscope.