1. What is DisplayPort Bandwidth?

DisplayPort bandwidth refers to the maximum data transfer rate supported by a DisplayPort connection. It determines the resolution, refresh rate, and color depth that can be transmitted over the connection.

2. How Does the Calculator Work?

The calculator uses the DisplayPort bandwidth equation:

Where:

• \( Resolution \) — Total number of pixels (width × height)
• \( Refresh \) — Refresh rate in Hertz (Hz)
• \( Bits \) — Color depth in bits per pixel
• 1.62 — Overhead factor for DisplayPort protocol

Explanation: The equation calculates the raw bandwidth required to transmit the video signal, accounting for the DisplayPort protocol overhead.

3. Importance of Bandwidth Calculation

Details: Calculating bandwidth helps determine if a DisplayPort version can support your desired display configuration (resolution, refresh rate, and color depth).

4. Using the Calculator

Tips: Enter the total resolution (width × height), refresh rate in Hz, and color depth in bits. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are common DisplayPort bandwidth versions?
A: DisplayPort 1.2 supports up to 17.28 Gbps, DP 1.3/1.4 supports 25.92 Gbps, and DP 2.0 supports up to 77.37 Gbps.

Q2: How does this relate to actual DisplayPort versions?
A: Compare your calculated bandwidth with the maximum bandwidth of your DisplayPort version to check compatibility.

Q3: What factors affect real-world bandwidth requirements?
A: Compression (DSC), chroma subsampling, and blanking intervals can affect actual bandwidth needs.

Q4: Does cable length affect bandwidth?
A: Yes, longer cables may reduce maximum achievable bandwidth due to signal degradation.

Q5: How does HDR affect bandwidth requirements?
A: HDR typically requires higher color depth (10-bit or more), increasing bandwidth needs.