# item.guide
Side-by-Side Comparison Display Cables

DisplayPort 2.1 vs. HDMI 1.0

Comparing 2 standards across 10 specifications. 10 key differences identified.

Comparing:
DisplayPort 2.1
HDMI 1.0
DisplayPort 2.1 →

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.

View full DisplayPort 2.1 spec sheet →
HDMI 1.0 →

HDMI 1.0, released December 9, 2002 by a group of seven consumer electronics companies, was the original single-cable digital audio/video connector. It carried up to 4.95 Gbps over TMDS signaling -- enough for 1080p at 60Hz -- replacing separate analog video and digital audio cables with one connector.

View full HDMI 1.0 spec sheet →

Specification Comparison Table

10 Parameters
Parameter / Spec
DisplayPort 2.1
HDMI 1.0
Max Resolution @ Refresh Rate
16K @ 60Hz (DSC) / 8K @ 120Hz / 4K @ 240Hz 1920x1080 or 1920x1200 @ 60Hz
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) —
Release Date
— December 9, 2002
Max Bandwidth (raw / video)
— 4.95 / 3.96 Gbps
Max Audio
— 8-channel LPCM, 192kHz/24-bit

Other Alternatives to Compare

Compare DisplayPort 2.1 vs. DisplayPort 1.0 → Compare DisplayPort 2.1 vs. DisplayPort 1.2 → Compare DisplayPort 2.1 vs. DisplayPort 1.4 → Compare DisplayPort 2.1 vs. DVI → Compare DisplayPort 2.1 vs. HDMI 1.3 → Compare DisplayPort 2.1 vs. HDMI 1.4 → Compare DisplayPort 2.1 vs. HDMI 2.0 → Compare DisplayPort 2.1 vs. HDMI 2.1 → Compare DisplayPort 2.1 vs. VGA →