Many people have been asking about FreeSync on the new Xbox Series X and Series S. And we’re happy to share that both support FreeSync. It’s the same setup as was on the Xbox One X and Xbox One S through HDMI 2.0. Microsoft’s Xbox consoles use HDMI variable refresh rate, or VRR, delivered via HDMI 2.1 on the Xbox Series X and Series S. This technology is compatible with VESA Adaptive Sync and therefore AMD FreeSync works in conjunction with Xbox consoles. Theoretically, an Xbox plugged into a G-Sync monitor via HDMI may allow VRR, since G-Sync is also based on Adaptive Sync. However, that’s not covered by official support and will be very hit and miss. FreeSync support is official and thus nearly universal.
Keep in mind base Xbox One consoles from 2013 to 2016 don’t support VRR. Only Xbox One S, One X, Series S, and Series X do. And of course your display needs to be FreeSync-enabled.