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HDMI 2.0 vs. HDMI 2.1: A Speed and Capability Comparison

HDMI 2.0 and HDMI 2.1 are two versions of the High-Definition Multimedia Interface standard, and their primary distinction lies in their speed and capabilities.

1. Bandwidth Capacity
HDMI 2.0: Offers a bandwidth capacity of 18 Gbps.
HDMI 2.1: Boasts an impressive 48 Gbps bandwidth capacity.

2. Video Data Transmission
HDMI 2.1 excels at transmitting substantial amounts of video data at higher speeds without the need for data compression. This preserves the quality, especially when transmitting larger resolutions.

3. Frame Rate and Refresh Rate
HDMI 2.1 surpasses HDMI 2.0 in terms of frame rate and refresh rate support.
HDMI 2.1 delivers a maximum frame rate of 120 fps and a maximum refresh rate of 120 Hz. In contrast, HDMI 2.0 supports resolutions up to 4K at 60 Hz, while HDMI 2.1 can transmit resolutions up to a stunning 10K at 120 Hz. If you plan to use 8K devices, opting for HDMI 2.1 cables is advisable.

4. New Features
HDMI 2.1 introduces new features that HDMI 2.0 lacks. Notable additions include eARC (Enhanced Audio Return Channel), facilitating the transmission of higher-quality audio signals, and VRR (Variable Refresh Rate), which minimizes screen tearing and stuttering, particularly in fast action content and video games