1. What is DisplayPort 1.4 Bandwidth?

DisplayPort 1.4 bandwidth refers to the data transfer capacity required to support specific display resolutions, refresh rates, and color depths. It helps determine if a DisplayPort 1.4 connection can handle a particular display configuration.

2. How Does the Calculator Work?

The calculator uses the DisplayPort 1.4 bandwidth formula:

Where:

• \( H \) — Horizontal resolution in pixels
• \( V \) — Vertical resolution in pixels
• \( Refresh \) — Refresh rate in Hz
• \( Bits \) — Color depth in bits per pixel

Explanation: The formula calculates the raw bandwidth requirement for uncompressed video data transmission.

3. Importance of Bandwidth Calculation

Details: Accurate bandwidth calculation is crucial for ensuring display compatibility, preventing signal degradation, and optimizing display performance with DisplayPort 1.4 connections.

4. Using the Calculator

Tips: Enter horizontal and vertical resolution in pixels, refresh rate in Hz, and color depth in bits. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum bandwidth of DisplayPort 1.4?
A: DisplayPort 1.4 supports a maximum bandwidth of 32.4 Gbps with HBR3 transmission rate.

Q2: Does this calculation include compression?
A: No, this calculates raw uncompressed bandwidth. DisplayPort 1.4 supports Display Stream Compression (DSC) which can reduce bandwidth requirements.

Q3: How does color depth affect bandwidth?
A: Higher color depth (8-bit vs 10-bit vs 12-bit) significantly increases bandwidth requirements as more data needs to be transmitted per pixel.

Q4: What factors besides resolution affect bandwidth?
A: Refresh rate, color depth, and chroma subsampling are the main factors that determine bandwidth requirements.

Q5: Can DisplayPort 1.4 handle 4K at 144Hz?
A: Yes, DisplayPort 1.4 can handle 4K (3840×2160) at 144Hz with 8-bit color, or with DSC for higher color depths.