Display Bandwidth Calculator
Estimate video data rate from resolution, refresh rate and color depth.
It does not replace the port’s specifications: HDMI and DisplayPort use different encoding and transmission modes.
What this tool does
Resolution, refresh rate and colour depth determine much of the data rate required by a display mode. This estimate helps compare modes, but real interface limits depend on timing, chroma format, blanking, compression and the exact DisplayPort or HDMI version.
How to use it
Enter the values requested by the calculator and check the result together with the notes shown below it.
Practical example
Use a realistic example from your own setup to compare scenarios. The result is a reference, not a replacement for manufacturer specifications.
How to interpret the result
Treat the result as an estimate whenever real-world factors are not available to the browser. For hardware, network or safety decisions, verify the relevant technical specifications.
Frequently asked questions
Why check video bandwidth?
To see whether a resolution and refresh rate fit within the bandwidth of a cable or port such as HDMI or DisplayPort.
Why is the link not used at 100 %?
Besides pixels there is synchronisation, encoding and overhead. That is why the tool gives an estimate with a selectable efficiency.