XDA-Developers dug up some precious info on the upcoming Chromecast or Android TV stick, whatever you like to call it. We now know what to expect in terms of hardware and features. The guys over at XDA obtained a pre-release version of the firmware, which revealed some specs. The device will run on Amlogic S905X2 chipset with 2GB of RAM. It will support 4K streaming in 60 fps and, of course, HDR and Dolby Vision standards are also on the list of supported features. Interestingly, there's a mention of an auto low-latency working over HDMI 2.1. This might be related to Google Stadia...
Source: https://www.gsmarena.com/more_details_about_googles_android_tv_dongle_codenamed_sabrina_surface-news-43758.php