H.264 video up to 1080p, 30 frames per second, High or Main Profile level 4.0 or lower, Baseline profile level 3.0 or lower with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
Testing conducted by Apple in February 2019 using preproduction AirPods (2nd generation) and AirPods units and software paired with iPhone Xs Max and iPad Pro (12.9-inch) (3rd generation) with prerelease software. Testing consisted of switching the audio source from iPad to iPhone. Devices you can use with the Apple TV app and Apple TV+ Jan 27, 2020 Supported Apple TV Models - Hulu May 11, 2020 Apple TV 3rd generation its specs and other details Jul 30, 2016
A year and a half after the Apple TV 2 came out, the 3rd generation was announced. It was nearly identical to the previous version, except that it outputted video at full-HD quality. This is a pretty common move for Apple.
Jan 27, 2020 Supported Apple TV Models - Hulu May 11, 2020 Apple TV 3rd generation its specs and other details
Mar 04, 2020
Specifically, Apple reveals that the Apple TV 2nd Gen is powered by an Apple A4 processor and the Apple TV 3rd Gen models are powered by an Apple A5 processor, both with a single processor core. However, iFixit tore apart the 2nd Gen model and discovered that the Apple A4 processor has a 1 GHz clockspeed and that the device has 256 MB of onboard RAM and 8 GB of flash RAM to act as a buffer during streaming.