HomeDisplayPort 1.2
DisplayPort 1.2 bandwidth
DisplayPort 1.2 is rated 21.6 Gbps and carries 17.28 Gbps of video after 8b/10b encoding. At 8-bit without compression it carries 1080p up to 288 Hz, 1440p up to 174 Hz, 3440x1440 up to 133 Hz and 4K up to 81 Hz.
DisplayPort 1.2 doesn't carry DSC, so a mode over its payload doesn't fit.
Highest refresh rate on DisplayPort 1.2
| Resolution | 8-bit | 10-bit |
|---|---|---|
| 1080p (1920x1080) | 288 Hz | 237 Hz |
| 1440p (2560x1440) | 174 Hz | 141 Hz |
| 3440x1440 (3440x1440) | 133 Hz | 107 Hz |
| 4K (3840x2160) | 81 Hz | 65 Hz |
| 5K (5120x2880) | 47 Hz | 37 Hz |
| 8K (7680x4320) | under 24 Hz | under 24 Hz |
Popular modes on DisplayPort 1.2
| Mode | 8-bit | 10-bit |
|---|---|---|
| 4K 60Hz | Pass, 12.54 Gbps | Pass, 15.68 Gbps |
| 4K 120Hz | Fail, 25.82 Gbps | Fail, 32.27 Gbps |
| 4K 144Hz | Fail, 31.35 Gbps | Fail, 39.19 Gbps |
| 4K 160Hz | Fail, 35.10 Gbps | Fail, 43.88 Gbps |
| 4K 165Hz | Fail, 36.29 Gbps | Fail, 45.37 Gbps |
| 4K 240Hz | Fail, 54.84 Gbps | Fail, 68.56 Gbps |
| 1440p 144Hz | Pass, 14.08 Gbps | Fail, 17.60 Gbps |
| 1440p 165Hz | Pass, 16.30 Gbps | Fail, 20.37 Gbps |
| 1440p 240Hz | Fail, 24.62 Gbps | Fail, 30.77 Gbps |
| 1440p 360Hz | Fail, 39.37 Gbps | Fail, 49.21 Gbps |
| 1080p 360Hz | Fail, 22.38 Gbps | Fail, 27.97 Gbps |
| 8K 60Hz | Fail, 49.65 Gbps | Fail, 62.06 Gbps |
| 8K 120Hz | Fail, 102.20 Gbps | Fail, 127.75 Gbps |
Results use PC monitor timings (VESA CVT reduced blanking v2 as the headline), not the TV and console timings in CTA-861, so a TV or console may need more bandwidth than shown. RGB/4:4:4 color.
Sources
- HDMI 2.1 FRL article (Allion Labs), retrieved 27 October 2026
- New HDMI 2.1 Technology, part 1 of 2 (Black Box, 2021), retrieved 27 October 2026
- VESA introduces DisplayPort v1.2 (7 Jan 2010), retrieved 27 October 2026
- VESA publishes DisplayPort Standard Version 1.4 (1 Mar 2016), retrieved 27 October 2026
- VESA publishes DisplayPort 2.0 video standard (26 Jun 2019), retrieved 27 October 2026
- VESA readies DisplayPort UHBR device certification and begins certification of UHBR cables, retrieved 27 October 2026
- Premium HDMI Cable Certification Program (hdmi.org), retrieved 27 October 2026
- Ultra High Speed and Ultra96 HDMI Cables (hdmi.org), retrieved 27 October 2026
- Thunderbolt 5 Technology Brief (Intel, Sept 2023), retrieved 27 October 2026
- VESA CVT Standard, Version 2.1, retrieved 27 October 2026
- VESA CVT v2.1 Generator Version 1 (spreadsheet; sheets CVTv2.1 and CVTv1.2a), retrieved 27 October 2026
- VESA Display Stream Compression (DSC) Standard, Version 1.2b (12 Aug 2021), retrieved 27 October 2026
- VESA DSC Source Device Guidelines r1.0, retrieved 27 October 2026
Data verified 27 October 2026 against these sources. See the methodology for how disagreements are resolved.