Link bandwidth

Link bandwidth is how much data a connection can carry each second, often expressed in gigabits per second (Gbps). Not all of the raw signaling rate is available for image data. Encoding and protocol overhead use part of that capacity. VESA’s DisplayPort material distinguishes link and payload bandwidth

A higher resolution, refresh rate or bit depth generally needs more image data. DSC and chroma subsampling can change that requirement. Consider these properties together when reading a connection report.

BetterDisplay shows the rate, lane and bandwidth values the system makes available. Those reports are not a cable-quality measurement or a promise that every combination of mode settings will work.

See Individual Display Settings for the related information.