All 4 HDMI ports on the QN800D are capable of Auto Low Latency Mode (ALLM), Dynamic Metadata (HDR10+), Variable Refresh Rate (VRR), High Frame Rate (HFR), 4K@120Hz (up to 165Hz for PCs), as well as 8K@60Hz. HDMI port 3 offers Enhanced Audio Return Channel (eARC).
~ Samsung Specialist