HDMI Capabilities of the LG 65" B5 TV

Find out which features are included with the LG 65-inch B5 TV, including its compatible HDMI version, refresh rate, and support for VRR and eARC. Additionally, we recommend HDMI cables suitable for this TV.

HDMI Capabilities of the LG 65" B5 TV Kam Idris / Unsplash

Last Updated: October 2, 2025

Written by Brandon Jones

HDMI (High-Definition Multimedia Interface) plays a vital role in modern TVs like the LG 65" B5, ensuring seamless connectivity for a range of devices. HDMI transmits uncompressed, high-definition audio and video signals, guaranteeing exceptional image quality.

One of HDMI's key benefits is its ability to simplify your setup. By using a single cable for both audio and video, it reduces clutter and streamlines connectivity. HDMI also supports advanced features such as 3D video, deep color, and High Dynamic Range (HDR), which create an immersive and lifelike viewing experience. Additionally, it supports cutting-edge audio technologies like Dolby Atmos and DTS:X, enriching the overall sound quality.

In this article, we'll explore the HDMI capabilities of the LG 65" B5, which includes model OLED65B5PUA.

Additionally, we provide Our Recommended HDMI Cables for the 65" B5 for this TV below, ensuring you receive the highest quality viewing experience.

Check another TV size:
LG 65" B5
HDMI 2.0 Ports: NO
HDMI 2.1 Ports: 4
Refresh Rate: 120 Hz
VRR Support: YES

Is HDMI 2.1 Supported on the LG 65" B5?

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After reviewing the LG 65" B5 TV's specs, we found that it supports HDMI 2.1, with a total of four HDMI 2.1 ports.

You can find Our Recommended HDMI Cables for the 65" B5 TV below to find the best HDMI cable available.

HDMI 2.1 cables are backward compatible with HDMI 2.0 ports. However, when connected to HDMI 2.0 ports, these cables only deliver HDMI 2.0 features. To fully utilize HDMI 2.1's capabilities, we recommend using an HDMI 2.1 cable with an HDMI 2.1 port, ensuring both your TV and connected devices are compatible.

Since HDMI 2.1 is backward compatible with earlier HDMI versions, buying an HDMI 2.1 cable ensures future-proofing. HDMI 2.1 cables guarantee maximum performance for any display that supports HDMI 2.1, without compatibility concerns.

HDMI 2.1 supports higher resolutions up to 10K and provides faster refresh rates compared to HDMI 2.0. Additional features include Auto Low Latency Mode (ALLM), Dynamic HDR, Variable Refresh Rate (VRR), Enhanced Audio Return Channel (eARC), Quick Media Switching (QMS), and Quick Frame Transport (QFT).

HDMI 2.1 Features (if Supported by Devices)
HDMI 2.1 Feature Benefit
Increased Bandwidth Adds support for 4K, 5K, 8K, 10K resolutions at 120 Hz.
Auto Low Latency Mode Enables ideal latency setting to be set automatically. Allows smooth lag-free and uninterrupted viewing and interactivity.
Dynamic HDR Lets a display alter the HDR metadata on a scene by scene or frame by frame basis.
Variable Refresh Rate Eliminates stuttering and frame tearing in games.
Enhanced Audio Return Channel Improves support of Dolby Atmos and DTS:X audio standards.
Quick Media Switching Decreases the delay when switching video sources.
Quick Frame Transport Reduces latency for smoother gaming without lag and real-time interactive VR.

Are VRR and eARC Supported on the LG 65" B5?

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After reviewing the LG 65" B5 TV's specs, we found that it supports Enhanced Audio Return Channel (eARC) functionality with the TV's HDMI 2.1 port. TVs with eARC functionality often include additional Dolby Atmos and DTS:X audio capabilities.

We also found that the LG 65" B5 TV supports VRR.

Variable Refresh Rate (VRR) eliminates screen tearing, stuttering, and input lag, providing smoother and more responsive gameplay. VRR adjusts the TV's refresh rate dynamically to match the frame rate of the content. This synchronization between the display's refresh rate and the output of your gaming console or graphics card ensures each frame is displayed perfectly.

VRR provides significant benefits, particularly in gaming scenarios where frame rates fluctuate. VRR contributes to a more immersive and fluid gameplay experience by directly addressing and mitigating problems like screen tearing, stuttering, and input lag.

Refresh Rate of the LG 65" B5 TV

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Our analysis found that the LG 65" B5 TV has a native refresh rate of 120 Hz. Refresh rates, measured in Hertz (Hz), determine how well a TV can handle motion. The higher the refresh rate, the smoother the motion will be.

Refresh rate is the number of times a display can redraw the screen per second. For example, a refresh rate of 120 Hz means the screen redraws 120 times each second. Since 120 Hz is twice as fast as 60 Hz, any motion on the screen, such as during sports, will be much smoother.

If you enjoy fast-paced content, we recommend a TV with a higher refresh rate than 60 Hz. When watching a sports match or playing a game on a 120 Hz TV, the motion on the screen becomes incredibly smooth and lifelike, enhancing the overall experience.

However, if you primarily watch slower-paced content such as films and TV shows, the difference between a 60 Hz refresh rate and higher refresh rates will be less noticeable. A 60 Hz refresh rate can still deliver a satisfactory viewing experience for this type of content. Moreover, 60 Hz refresh rate TVs are often more budget-friendly, making them a suitable choice for those who prioritize affordability. Ultimately, the decision regarding the refresh rate depends on your personal preferences and the type of content you frequently watch.

Max Supported HDMI 2.1 Refresh Rates
60 Hz 120 Hz 144 Hz 240 Hz
1080p Yes Yes Yes Yes
1440p Yes Yes Yes Yes
4K Yes Yes No No
8K Yes No No No
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Anker 8K HDMI 2.1 Cable

  • After conducting our research and analysis, we have found that the Anker 8K HDMI 2.1 Cable offers exceptional performance and a range of impressive features.
  • You can find the Anker 8K HDMI 2.1 Cable (6.6 ft) on Amazon
  • With a bandwidth of 48 Gb/s, it supports high-resolution formats like 8K at 60 Hz, 4K at 120 Hz, and chroma 4:4:4 (no compression), all while delivering stunning Dynamic HDR.
  • Additionally, it boasts support for eARC (enhanced Audio Return Channel), allowing for enhanced audio transmission. It is compatible with Dolby Atmos, DTS X 7.1, and DTS X 5.1 surround sound.
  • We have found that the Anker 8K HDMI 2.1 Cable offers an excellent solution for those seeking top-notch performance and compatibility. Whether you're a casual viewer or a dedicated enthusiast, this cable delivers the reliability and quality necessary to elevate your home entertainment experience.

Monoprice 8K Certified Braided HDMI 2.1 Cable

  • After conducting our research and analysis, we have found that the Monoprice 8K certified braided HDMI 2.1 cable offers exceptional performance and a range of impressive features.
  • You can find the Monoprice 8K Certified Braided HDMI 2.1 Cable on Amazon , available in lengths ranging from 6 to 10 feet.
  • With a bandwidth of 48 Gb/s, it supports high-resolution formats like 8K at 60 Hz, 4K at 120 Hz, and uncompressed video resolutions, all while delivering stunning Dynamic HDR and 3D visuals.
  • Additionally, it boasts support for eARC (enhanced Audio Return Channel), allowing for enhanced audio transmission. It is compatible with Dolby Atmos, Dolby Vision, and DTS X surround sound.
  • We have found that the Monoprice 8K certified braided HDMI 2.1 cable offers an excellent solution for those seeking top-notch performance and compatibility. Whether you're a casual viewer or a dedicated enthusiast, this cable delivers the reliability and quality necessary to elevate your home entertainment experience.

Cable Matters Active 8K Fiber Optic HDMI 2.1 Cable

  • After conducting our research and analysis, we have found that the Cable Matters Active 8K Fiber Optic HDMI 2.1 cable offers exceptional performance and a range of impressive features.
  • You can find the Cable Matters Active 8K Fiber Optic HDMI 2.1 cable on Amazon , available in lengths ranging from 16.4 to 49.2 feet.
  • With a bandwidth of 48 Gb/s, it supports high-resolution formats like 8K at 60 Hz, 4K at 120 Hz, VRR (Variable Refresh Rate), Auto Low Latency Mode (ALLM), and and chroma 4:4:4 (no compression), all while delivering stunning Dolby Vision HDR (10 bit/12 bit color depth).
  • Additionally, it boasts support for eARC (enhanced Audio Return Channel), allowing for enhanced audio transmission. It is compatible with Dolby Atmos, Dolby Vision, and DTS X surround sound.
  • After conducting our research and analysis, we have found that the Cable Matters Active 8K Fiber Optic HDMI 2.1 cable surpasses expectations, providing an unrivaled solution for those seeking top-notch performance and compatibility. Whether you're a casual viewer or a dedicated enthusiast, this cable delivers reliability and exceptional quality that will elevate your home entertainment experience to new heights.

Learn More About the LG 65" B5

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