DisplayPort 2.1 vs. DVI
Comparing 2 standards across 14 specifications. 14 key differences identified.
DisplayPort 2.1, announced October 2022, is a certification-level refinement of the DisplayPort 2.0 specification VESA released back in June 2019. Its fastest UHBR20 mode delivers 80 Gbps raw bandwidth -- enough for a single 10K display at 60Hz uncompressed, or multiple high-refresh 4K/8K displays daisy-chained with compression.
DVI (Digital Visual Interface) comes in five variants -- DVI-D (digital only, 19 or 25 pins), DVI-I (digital + analog, 23 or 29 pins), and DVI-A (analog only, 11 pins) -- with single-link supporting up to 1920x1200 @ 60Hz and dual-link up to 2560x1600 @ 60Hz.
Specification Comparison Table
14 Parameters| Parameter / Spec | ||
|---|---|---|
|
Max Resolution @ Refresh Rate
|
16K @ 60Hz (DSC) / 8K @ 120Hz / 4K @ 240Hz | — |
|
Max Bandwidth / Data Rate
|
80.0 Gbps (UHBR20, 77.37 Gbps payload) | — |
|
Pin Count
|
20 Pins (DP) / USB-C (DP40 / DP80 certified) | — |
|
Display Stream Compression (DSC)
|
DSC 1.2a Mandatory Support | — |
|
Variable Refresh Rate (VRR)
|
VESA Adaptive-Sync & Panel Replay | — |
|
Max Audio Channels
|
32 Channels | — |
|
Max Recommended Cable Length
|
1–2 Meters (Passive DP80) / 3m (DP40) | — |
|
DVI-D Single-Link
|
— | 19 pins |
|
DVI-D Dual-Link
|
— | 25 pins |
|
DVI-I Single-Link
|
— | 23 pins |
|
DVI-I Dual-Link
|
— | 29 pins |
|
DVI-A
|
— | 11 pins |
|
Single-Link Max Resolution
|
— | 1920x1200 @ 60Hz |
|
Dual-Link Max Resolution
|
— | 2560x1600 @ 60Hz |