Side-by-Side Comparison
Display Cables
DisplayPort 1.0 vs. HDMI 2.1
Comparing 2 standards across 10 specifications. 10 key differences identified.
Comparing:
DisplayPort 1.0
HDMI 2.1
DisplayPort 1.0, approved by VESA on May 3, 2006, was the original version of the royalty-free digital display standard. Its High Bit Rate (HBR) mode delivered 10.8 Gbps raw bandwidth across 4 lanes, with hot-plug detection and embedded digital audio built in from the start.
HDMI 2.1 increases total bandwidth to 48 Gbps via Fixed Rate Link (FRL). It mandates Ultra High Speed HDMI Cable certification and supports Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), and eARC.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
Approved
|
May 3, 2006 (VESA) | — |
|
Max Bandwidth, HBR 4 lanes (raw / effective)
|
10.8 / 8.64 Gbps | — |
|
Link Rates
|
RBR: 1.62 Gbps/lane | HBR: 2.70 Gbps/lane | — |
|
Max Resolution @ Refresh Rate
|
— | 8K @ 60Hz / 4K @ 120Hz (10K with DSC) |
|
Max Bandwidth / Data Rate
|
— | 48 Gbps (FRL 4 lanes) |
|
Pin Count
|
— | 19 Pins (Type A) |
|
Display Stream Compression (DSC)
|
— | DSC 1.2a Supported |
|
Variable Refresh Rate (VRR)
|
— | HDMI Forum VRR & Quick Media Switching (QMS) |
|
Max Audio Channels
|
— | 32 Channels (eARC up to 192kHz / 24-bit uncompressed) |
|
Max Recommended Cable Length
|
— | 3 Meters (Passive Ultra High Speed) / 100m+ (Active Optical AOC) |
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