HDMI 2.0 Cable: The 4K60 Standard Almost Everything Uses
Quick answer / TL;DR: Short answer: an HDMI 2.0 cable carries 18 Gbps, supporting 4K at 60 Hz, 1440p at 144 Hz and 1080p at 240 Hz. Look for Premium High Speed certification, which is the HDMI programme for this bandwidth. It supports HDR, HDCP 2.2 and ARC but not 4K above 60 Hz or 8K, which require HDMI 2.1 and 48 Gbps. Passive 18 Gbps cable works to about 5 m.
Four versions, four bandwidth ceilings: the cable must match the signal.HDMI 2.0 raised the interface to 18 Gbps, which is enough for 4K at 60 Hz with 8-bit colour and 4:4:4 sampling. It is the most widely deployed HDMI generation and the one most displays and sources still operate at.
The cable side of HDMI 2.0 is called Premium High Speed, and it is certified rather than merely claimed. That certification is the useful thing to look for, because it distinguishes a tested cable from one that has been labelled.
What 18 Gbps Buys
The bandwidth figure translates into specific modes. Everything below fits within 18 Gbps at 8-bit colour; 10-bit at 4K60 also fits, but with less margin.
| Mode | Approx payload | Fits 18 Gbps | Notes |
|---|
| 1080p at 240 Hz | about 14.9 Gbps | yes | competitive gaming | 1440p at 144 Hz | about 14.1 Gbps | yes | comfortable | 1440p at 165 Hz | about 16.1 Gbps | yes | tight | 4K at 60 Hz, 8-bit | about 12.5 Gbps | yes | the standard case | 4K at 60 Hz, 10-bit | about 15.7 Gbps | yes | HDR content | 4K at 120 Hz | about 25.0 Gbps | no | needs HDMI 2.1 |
The last row is the boundary. Buying an HDMI 2.0 cable for a 4K120 display wastes the display's capability, and the system will fall back to 4K60 without any error message.
Premium High Speed Certification
HDMI Licensing Administrator operates certification programmes tied to bandwidth. Premium High Speed covers 18 Gbps, and Ultra High Speed covers 48 Gbps. A certified cable carries a test result, while an uncertified one carries a claim.
- Premium High Speed: tested at 18 Gbps, suitable for HDMI 2.0
- Ultra High Speed: tested at 48 Gbps, required for HDMI 2.1 features
- Standard Speed: 10.2 Gbps, adequate for 1080p only
- Certification is per assembly, so a long cable must be certified at that length
- Serial number lookup is available for Premium certified cables
Real-World Applications
4K television with a streaming device
Eighteen gigabits covers 4K at 60 Hz with HDR, which is what streaming services deliver. A Premium certified cable at 2 m is the correct and inexpensive answer.
Gaming monitor at 1440p 144 Hz
This fits comfortably inside 18 Gbps and is a common reason to use HDMI 2.0 over DisplayPort. Either works, and HDMI 2.0 is often the more convenient connector on a console.
Office 4K60 monitor
The most common desktop case. A certified 2 m cable supports 4K at 60 Hz at 8-bit or 10-bit, and there is no reason to pay for an HDMI 2.1 cable unless the display supports higher rates.
Where HDMI 2.0 is the wrong buy
Any 8K display or 4K display above 60 Hz. Those require HDMI 2.1 at 48 Gbps, and an HDMI 2.0 cable will silently limit the system to 4K60.
Related reading: HDMI 2.1 and 48 Gbps — blogs/news/hdmi-2-1-cable
Related reading: Choosing a cable for a monitor — blogs/news/hdmi-cable-for-monitor
Standards and Verification
HDMI versions and their bandwidths are specified by HDMI Licensing Administrator, with HDMI 2.0 at 18 Gbps and the Premium High Speed certification programme covering cables for that bandwidth. HDCP 2.2 is required for protected 4K content.
Verify by checking the reported mode, not by observing an image. A system running 4K at 30 Hz on a 4K60 display is a cable or port limitation, and the picture looks correct enough that the problem goes unnoticed.
Length matters at this bandwidth: passive copper is reliable to about 5 m, and beyond that an active or optical cable is required. A long uncertified cable may work at 1080p and fail at 4K60, which is the classic marginal-signal symptom.
Keep the certification serial number if the cable is installed inside a wall. It is the only evidence available if the cable later fails to deliver the mode it was sold for.
Frequently Asked Questions
Is HDMI 2.0 enough for 4K at 60 Hz?
Yes. 4K at 60 Hz needs about 12.5 Gbps at 8-bit and 15.7 Gbps at 10-bit, both within the 18 Gbps of HDMI 2.0.
What is a Premium High Speed HDMI cable?
The HDMI certification for 18 Gbps cables, which covers everything HDMI 2.0 can carry. It is a tested rating rather than a marketing label.
Does HDMI 2.0 support HDR?
Yes. HDR metadata is carried within the 18 Gbps budget at 4K60, provided the source, cable and display all support it.
Can I use an HDMI 2.0 cable for 4K at 120 Hz?
No. That mode needs about 25 Gbps, which requires HDMI 2.1 and a 48 Gbps cable.
How long can an HDMI 2.0 cable be?
About 5 m for passive copper at 18 Gbps. Beyond that, an active or optical cable is required for reliable 4K60.
Sourcing cables for a project, a store, or a private-label line? Contact our B2B sales team for specifications, certification evidence, and volume terms – FOB and CIF options available. Request a quote or sample.
