←Display Output Standards Comparison

Enter resolution, refresh rate and color depth to estimate bandwidth and compare HDMI and DisplayPort link-rate tiers.

Video Output Parameters

Resolution Width (px):

Resolution Height (px):

Refresh Rate (Hz):

Common Resolutions:

Common Refresh Rates:

Bits per color channel

Special Feature Settings

Filter for VRR-capable standardsVariable refresh rate requires support from the GPU and display

Estimated Required Bandwidth

32.97Gbps

Visually Lossless DSC3:1 estimateReduces bandwidth demand; applied only to DSC-capable tiers

Matching Standards:

Search related standards, link rates or cable names:

✓ Meets requirements

VRR

HDMI 2.1 (FRL)

Link Rate / Cable Name

Ultra High Speed HDMI CableCopy

Historical & Compatible Aliases

HDMI 2.1aHDMI 2.1b48GFRL6

Supported Connectors:

HDMI

Devices & Applications:

4K 120Hz gaming TVs, monitors and game consoles.

Theoretical Max Bandwidth48.0 Gbps

Physical Layer EncodingFRL 16b/18b

Maximum Effective Bandwidth42.60 Gbps

Estimated Demand32.97 Gbps

✓ Meets requirements

VRR

HDMI 2.2

Link Rate / Cable Name

Ultra96 HDMI CableCopy

Historical & Compatible Aliases

Ultra9664G80G96G

Supported Connectors:

HDMI

Devices & Applications:

4K 240Hz gaming monitors and 8K 60Hz HDR video.

Theoretical Max Bandwidth96.0 Gbps

Physical Layer EncodingFRL 16b/18b

Maximum Effective Bandwidth85.20 Gbps

Estimated Demand32.97 Gbps

✓ Meets requirements

VRR

DisplayPort 2.1 (UHBR10)

Link Rate / Cable Name

UHBR10 / DP54 CableCopy

Historical & Compatible Aliases

DP 2.0DP 2.1aDP 2.1bDP40

Supported Connectors:

DisplayPort / Type-C

Devices & Applications:

4K 144Hz gaming monitors and high-refresh desktop displays.

Theoretical Max Bandwidth40.0 Gbps

Physical Layer Encoding128b/132b

Maximum Effective Bandwidth38.68 Gbps

Estimated Demand32.97 Gbps

✓ Meets requirements

VRR

DisplayPort 2.1 (UHBR13.5)

Link Rate / Cable Name

UHBR13.5 / DP54 CableCopy

Historical & Compatible Aliases

DP 2.0DP 2.1aDP 2.1bDP54

Supported Connectors:

DisplayPort / Type-C

Devices & Applications:

4K 165Hz gaming monitors and 4K 240Hz displays (using DSC).

Theoretical Max Bandwidth54.0 Gbps

Physical Layer Encoding128b/132b

Maximum Effective Bandwidth52.22 Gbps

Estimated Demand32.97 Gbps

✓ Meets requirements

VRR

DisplayPort 2.1 (UHBR20)

Link Rate / Cable Name

UHBR20 / DP80 / DP80LL CableCopy

Historical & Compatible Aliases

DP 2.0DP 2.1aDP 2.1bDP80

Supported Connectors:

DisplayPort / Type-C

Devices & Applications:

4K 240Hz gaming monitors and 8K 60Hz HDR content creation and playback.

Theoretical Max Bandwidth80.0 Gbps

Physical Layer Encoding128b/132b

Maximum Effective Bandwidth77.36 Gbps

Estimated Demand32.97 Gbps

✗ Estimated bandwidth insufficient

HDMI 1.4

Link Rate / Cable Name

High Speed HDMI CableCopy

Historical & Compatible Aliases

HDMI 1.4aHDMI 1.4b10.2G

Supported Connectors:

HDMI

Devices & Applications:

1080p TVs, everyday monitors and 4K 30Hz video playback.

Theoretical Max Bandwidth10.2 Gbps

Physical Layer EncodingTMDS

Maximum Effective Bandwidth8.16 Gbps

Estimated Demand32.97 Gbps

✗ Estimated bandwidth insufficient

HDMI 2.1 (TMDS)

Link Rate / Cable Name

Premium High Speed HDMI CableCopy

Historical & Compatible Aliases

HDMI 2.0HDMI 2.0aHDMI 2.0b18G

Supported Connectors:

HDMI

Devices & Applications:

4K 60Hz TVs, monitors and media players.

Theoretical Max Bandwidth18.0 Gbps

Physical Layer EncodingTMDS

Maximum Effective Bandwidth14.40 Gbps

Estimated Demand32.97 Gbps

✗ Estimated bandwidth insufficient

DisplayPort 1.2

Link Rate / Cable Name

HBR2Copy

Historical & Compatible Aliases

DP 1.2

Supported Connectors:

DisplayPort / Mini DP / Type-C

Devices & Applications:

QHD 144Hz gaming monitors and 4K 60Hz office monitors.

Theoretical Max Bandwidth21.6 Gbps

Physical Layer Encoding8b/10b

Maximum Effective Bandwidth17.28 Gbps

Estimated Demand32.97 Gbps

✗ Estimated bandwidth insufficient

VRR

DisplayPort 1.2a (HBR2)

Link Rate / Cable Name

HBR2Copy

Historical & Compatible Aliases

DP 1.2a

Supported Connectors:

DisplayPort / Mini DP / Type-C

Devices & Applications:

QHD 144Hz gaming monitors and 4K 60Hz displays, with optional Adaptive-Sync.

Theoretical Max Bandwidth21.6 Gbps

Physical Layer Encoding8b/10b

Maximum Effective Bandwidth17.28 Gbps

Estimated Demand32.97 Gbps

✗ Estimated bandwidth insufficient

VRR

DisplayPort 1.3 (HBR3)

Link Rate / Cable Name

HBR3 / DP8K CableCopy

Historical & Compatible Aliases

DP 1.3

Supported Connectors:

DisplayPort / Mini DP / Type-C

Devices & Applications:

QHD 240Hz gaming monitors and 4K 60Hz displays.

Theoretical Max Bandwidth32.4 Gbps

Physical Layer Encoding8b/10b

Maximum Effective Bandwidth25.92 Gbps

Estimated Demand32.97 Gbps

✗ Estimated bandwidth insufficient

VRR

DisplayPort 1.4

Link Rate / Cable Name

HBR3 / DP8K CableCopy

Historical & Compatible Aliases

DP 1.4a

Supported Connectors:

DisplayPort / Mini DP / Type-C

Devices & Applications:

QHD 240Hz gaming monitors and 4K 144Hz displays (using DSC).

Theoretical Max Bandwidth32.4 Gbps

Physical Layer Encoding8b/10b

Maximum Effective Bandwidth25.92 Gbps

Estimated Demand32.97 Gbps

Assumes RGB / 4:4:4, the selected bits per channel, a fixed 15% blanking allowance and four DP lanes. DSC uses a 3:1 estimate; tiers without DSC retain uncompressed demand. This is not a device compatibility guarantee. Timing, negotiated link rate, lane configuration and device features determine actual support. HDMI 2.2 temporarily uses approximately 88.75% efficiency, not a verified exact payload.

This card represents a link-rate ceiling. A version number, connector or cable name does not guarantee a device reaches it. VRR and DSC require support throughout the connection.

HDMI / DP Version Numbers Do Not Guarantee Features

HDMI 2.1 features such as FRL, VRR and DSC are optional; the version number does not guarantee 48 Gbps. Older HDMI 2.0 products do not all have to be relabeled HDMI 2.1. HDMI 2.2 reaches up to 96 Gbps; Ultra96 can identify products with maximum rates of 64, 80 or 96 Gbps. DP 2.1b does not guarantee UHBR either. Check the source, display, adapters and cables. Ultra High Speed / Ultra96 and DP54 / DP80 / DP80LL refer to cable names or certification tiers, not display feature certifications.

DSC Is Visually Lossless, Not Mathematically Lossless

Display Stream Compression reduces video bandwidth demand with low latency and targets visually lossless quality, rather than bit-for-bit recovery. This tool assumes 3:1 compression; actual ratios and activation depend on device negotiation. The source, display and any intervening adapters must support the required transport. DP 1.4 introduced DSC; DP 1.3 uses the same HBR3 rate without DSC.

USB-C Video Depends on Transport and Lane Configuration

USB-C describes a connector. USB 5 / 10 / 40 / 80 Gbps does not directly specify a DP link rate. DP Alt Mode can use four high-speed lanes. Some multifunction hubs allocate two lanes to DP and two to SuperSpeed USB, halving DP bandwidth. This depends on configuration, not simply plugging in a USB peripheral. USB4 / Thunderbolt can also tunnel DP and follow different bandwidth allocation rules. UHBR20 over DP Alt Mode does not require Thunderbolt 5. Whether 4K 60Hz works depends on link rate, color depth and timing.