---
title: "HDMI 1.4 size — 10.2 Gbit/s — 1080p at 120 Hz or 4K at 30 Hz"
description: "HDMI 1.4: 4K but only at 30 Hz, which is why it feels wrong for desktop use. Full dimensions in millimetres, centimetres and inches, and what the standard actually s"
url: https://atoneplace.net/size/hdmi-14/
site: "At One Place"
---

# HDMI 1.4 size

**HDMI 1.4: 10.2 Gbit/s — 1080p at 120 Hz or 4K at 30 Hz**

Adequate for 1080p and for 4K video at 30 frames a second, but not for 4K at 60 Hz. A 4K display running at 30 Hz over HDMI 1.4 has visibly laggy mouse movement, which is the usual reason someone concludes their new monitor is faulty.

## The numbers

- **Specification:** 10.2 Gbit/s — 1080p at 120 Hz or 4K at 30 Hz
- **Defined by:** HDMI Forum

## Video connectors

| Size | Millimetres | Inches |
| --- | --- | --- |
| HDMI 1.4 ← | 10.2 Gbit/s — 1080p at 120 Hz or 4K at 30 Hz | — |
| HDMI 2.1 | 48 Gbit/s — 4K at 120 Hz, 8K at 60 Hz | — |
| HDMI 2.0 | 18 Gbit/s — 4K at 60 Hz | — |
| DisplayPort 1.4 | 32.4 Gbit/s — 4K at 120 Hz with compression | — |

## Common questions

### What size is HDMI 1.4?

4K but only at 30 Hz, which is why it feels wrong for desktop use.

### Which standard defines HDMI 1.4?

HDMI Forum

## Related pages

- [HDMI 2.1 size](https://atoneplace.net/size/hdmi-21/)
- [HDMI 2.0 size](https://atoneplace.net/size/hdmi-20/)
- [DisplayPort 1.4 size](https://atoneplace.net/size/displayport-14/)

## Sources

- Official vendor product documentation — At One Place (/about/)