HDMI · 2009
HDMI 1.4
1080p at any common refresh rate, 4K only at 24–30 Hz. Introduced ARC.
- data: 10.2 Gbps
- video: 4K 30 Hz / 1080p 120 Hz
Spec card
- Max link rate
- 10.2 Gbit/s (340 MHz TMDS)
- Usable video
- 8.16 Gbit/s after 8b/10b
- Max video
- 4K (3840×2160) at 24/25/30 Hz; 1080p at 120 Hz
- Audio
- ARC (Audio Return Channel), 8-channel PCM
- Other
- HDMI Ethernet Channel, 3D
- Cable
- High Speed HDMI (Category 2)
Also sold as HDMI 1.4aHDMI 1.4b
The cable you need
A High Speed HDMI cable. A "Standard" HDMI cable is only rated for 720p/1080i.
Watch out for
- Many cheap USB-C to HDMI adapters are HDMI 1.4 and limit you to 4K 30 Hz.
HDMI 1.4 runs three TMDS channels at up to 340 MHz, 10.2 Gbps on the wire and 8.16 Gbps of actual video. That's comfortable for 1080p at 60 Hz (3.6 Gbps) and enough for 4K, but only at film-like 24–30 Hz. Moving a mouse on a 4K 30 Hz desktop feels sluggish, which is the most common reason to replace an old HDMI port or adapter.
HDMI 1.4 also introduced the Audio Return Channel. ARC lets a TV send its audio back down the same cable to a soundbar, with compressed 5.1 at most. eARC, for lossless and Atmos audio, arrived later.
What it can carry
Computed from each link's usable bandwidth; 4K at 60 Hz and above assumes 10-bit HDR colour. How.
| Mode | HDMI 1.4 |
|---|---|
| 1080p 60 Hz 8-bit | Fits 3.6 Gbps |
| 1080p 144 Hz 8-bit | Fits 8.0 Gbps |
| 1440p 144 Hz 8-bit | Too much 14.1 Gbps |
| 4K 30 Hz 8-bit | Fits 7.1 Gbps |
| 4K 60 Hz 10-bit | Too much 17.8 Gbps |
| 4K 120 Hz 10-bit | Too much 35.6 Gbps |
| 4K 144 Hz 10-bit | Too much 39.2 Gbps |
| 4K 240 Hz 10-bit | Too much 68.6 Gbps |
| 8K 60 Hz 10-bit | Too much 71.3 Gbps |