A Premium High Speed (18Gbps) cable is sufficient for 4K at 60Hz with standard HDR.
You need an Ultra High Speed (48Gbps) cable. This is mandatory to enable 4K at 120Hz, Variable Refresh Rate (VRR), and Auto Low Latency Mode (ALLM). which hdmi cable should i buy
To determine which HDMI cable to buy in 2026, you must match the cable's speed rating to your highest-performing device —typically a gaming console, streaming box, or 4K/8K TV. For most modern users, a cable is the safest "future-proof" choice, as it supports all advanced features like 4K at 120Hz and eARC. Quick Selection Guide A Premium High Speed (18Gbps) cable is sufficient