Output
Uncompressed payload, Gbit/s
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Display Bandwidth Calculator
Estimate raw video payload from resolution, refresh rate and bits per channel.
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Display Bandwidth Calculator · At a glance
Quick answer: Estimate raw video payload from resolution, refresh rate and bits per channel. The result is a payload estimate.
Display Bandwidth Calculator
The test loads when you open it. Device access is requested only after you choose to start.
Detailed guide
How to use this tool
- Enter resolution, refresh rate, bits per channel and blanking allowance.
- Read the estimated uncompressed RGB payload.
Input
Values and units entered in the calculator
Browser requirement
Local arithmetic; no hardware access
Processing
Runs on your device; no tool-result upload
How it works and what the result means
The result is a mathematical estimate under the stated formula. It does not read your hardware or change system settings.
Reading the result
The result is a payload estimate. Cable standards also involve link encoding, supported timings, compression and chroma formats.
Worked example and assumptions
RGB payload = width × height × Hz × bits per channel × 3 × blanking factor
2560 × 1440 at 144 Hz, 8 bits/channel and 10% blanking is approximately 14.01 Gbit/s.
This is payload, not a guaranteed DisplayPort or HDMI mode. Link encoding, timings, DSC and chroma matter.
2560 × 1440 at 144 Hz, 8 bits/channel and 10% blanking is approximately 14.01 Gbit/s.
This is payload, not a guaranteed DisplayPort or HDMI mode. Link encoding, timings, DSC and chroma matter.
What to check next
Check whether the intended mode uses DSC or chroma subsampling. A payload number alone cannot certify a specific cable or port combination.
Keep consistent units and compare the assumptions with your actual game, display or network configuration.
Frequently asked questions
Does a low enough result guarantee the display mode works?
No. Both devices and the cable must support the exact link mode, timings and configuration. This is a planning calculation.
How do I start the Display Bandwidth Calculator?
Enter your own values and press Calculate. Units are shown beside each field; invalid or impossible values are rejected.
Does this tool require a download or an account?
No. Open the interactive tool above in a modern browser. The instructions and explanations are available even with JavaScript disabled; running a test needs JavaScript.
Will this change my device or game settings?
No. The calculator or generator only creates a result for you to review. It does not detect or modify your hardware, operating system or game configuration.
Why can another calculator show a different answer?
Compare the units, rounding and assumptions. The same inputs and formula give the same result here; background CPU load does not change the mathematics.