Yes, High Dynamic Range (HDR) content can be displayed using G-Sync displays or similar technologies. G-Sync is a technology developed by NVIDIA that helps synchronize the refresh rate of a display with the frame rate of the content being displayed, reducing screen tearing and improving the overall visual experience.
To use HDR with G-Sync or similar technologies, both the display and the graphics card must support HDR, and the display must be set up to accept HDR input. This typically involves enabling HDR in the display settings and, in some cases, connecting an HDR-compatible cable.