Yes, on Windows. The HDMI port supports 4K at up to 120Hz on Windows. On macOS, the HDMI port supports 4K at up to 60Hz.

The HDMI port also supports 8K at 30Hz. 8K video output is not currently supported on macOS. For 8K output, your computer, external monitor, and HDMI cable must support HDMI 2.1.

Use a direct HDMI-to-HDMI cable for video output.