Some overseas reviewers said that the video output interface of the new Apple TV is HDMI 2.1 specification, which theoretically supports 4K 120FPS HDR image output, but Apple has not yet unlocked this function.
The evaluation from Screentimes points out that when using tvOS 14.6.1 system, the HDMI interface of this product uses the traditional TDMS (transition-minimized differential signaling) minimum differential signal for output, instead of the latest FRL(Fixed Rate Link) mode. The latter can be transmitted in four data channels, each with 12Gbps. If the second method is adopted, the total bandwidth can reach 48Gbps, and it can output pictures with 8K, 10K resolution, or 4K/120FPS specifications. In addition, the color signal of TDMS is 4:2:2, which is not the highest specification of 4:4:4.
IT House has learned that Google YouTube now supports playing 4K 60FPS video on Apple TV 2021. In addition, the new version of the product also supports Siri Remote voice control and is equipped with a sturdy metal remote control. Foreign media said that Apple is expected to announce the new features of Apple TV at the WWDC 2021 event held on June 7, and it is expected to unlock 4K 120FPS video output.