High Efficiency Video Coding


High Efficiency Video Coding (HEVC), also known as H.265, is a video compression standard designed to improve the efficiency of video data compression. It enables the delivery of high-quality video content, such as Ultra High Definition (UHD) and 4K resolution, using roughly half the bandwidth that previous standards, like H.264, required. This results in reduced file sizes and lower demands on network resources, thus enabling smoother streaming and faster video playback for viewers.


The phonetics for “High Efficiency Video Coding” are:High: /haɪ/Efficiency: /ɪˈfɪʃənsi/Video: /ˈvɪdiˌoʊ/Coding: /ˈkoʊdɪŋ/

Key Takeaways

  1. High Efficiency Video Coding (HEVC), also known as H.265, is a video compression standard that provides higher compression efficiency compared to its predecessor, H.264/AVC.
  2. HEVC allows for reduced file sizes and bandwidth usage, making it ideal for streaming high-quality videos, 4K/8K resolutions, and immersive experiences like 360-degree videos and virtual reality.
  3. Despite its advantages, HEVC’s main drawback is its higher computational complexity, which can lead to increased encoding and decoding times, as well as greater demand on device resources and hardware compatibility.


High Efficiency Video Coding (HEVC) is an important technology term because it represents a video compression standard that significantly improves video quality and enables efficient video transmission and storage.

As video resolutions increase and higher quality content becomes more widespread, the demand for more efficient video compression techniques also grows.

HEVC, also known as H.265, addresses this demand by offering up to 50% greater compression efficiency compared to its predecessor, H.264, without compromising on video quality.

This allows users to stream higher resolution videos with less bandwidth and storage space required, facilitating smoother and more cost-effective video experiences, especially in today’s world where video streaming and content consumption are increasingly vital components of everyday life.


High Efficiency Video Coding (HEVC), also known as H.265, serves a crucial purpose in the world of digital media by enabling the compression of video files without significantly degrading their quality. As consumers demand higher resolutions and better video quality, such as 4K and 8K, the file sizes of these videos increase significantly, creating challenges in storage and transmission. HEVC helps to address these challenges by compressing video data using advanced encoding techniques, resulting in smaller file sizes that are more manageable for storage and streaming purposes.

This not only saves bandwidth and reduces the time taken to transmit video data, but also enables users to store more videos and stream them more efficiently even in areas with limited network connectivity. In addition to its primary purpose of efficient video compression, HEVC also provides numerous benefits to various industries that rely on video content. For instance, the broadcast industry benefits greatly from the increased efficiency of HEVC, as broadcasters can transmit higher quality video content while conserving limited frequency spectrum.

Similarly, video streaming services can offer their customers higher quality video with reduced data consumption, leading to better user experiences and satisfaction. Furthermore, users can easily edit and share high-quality videos with reduced file sizes, thus promoting the growth of user-generated content and stimulating creativity. Overall, the adoption of High Efficiency Video Coding has not only revolutionized the way digital media is consumed, but has also influenced the production and distribution of video content across various platforms.

Examples of High Efficiency Video Coding

High Efficiency Video Coding (HEVC), also known as H.265, is a video compression standard that provides significant improvements in coding efficiency compared to its predecessor, the Advanced Video Coding (AVC) or H.264 standard. Here are three real-world examples of how HEVC is being utilized:

Streaming Services: Many popular video streaming platforms, such as Netflix, Amazon Prime Video, and YouTube, have adopted HEVC to deliver high-quality video content at a lower bandwidth. This technology allows these services to offer 4K UHD and HDR (High Dynamic Range) video to their customers while using less data, making it more efficient for both service providers and viewers.

Video Surveillance Systems: HEVC has found its way into many video surveillance applications as it allows for efficient storage and transmission of high-resolution video feeds. Security camera manufacturers are incorporating HEVC to maximize video quality while reducing the size of recorded video files, resulting in more efficient and cost-effective storage solutions for security systems.

Broadcasting: Satellite and cable television providers benefit from HEVC by being able to deliver higher-quality video content, such as 4K UHD and HDR formats, to subscribers. By adopting HEVC, broadcasters can fit more channels or higher resolution streams within their available bandwidth. This enables them to provide better-quality video content while using their existing infrastructure efficiently.

High Efficiency Video Coding (HEVC) FAQ

1. What is High Efficiency Video Coding (HEVC)?

High Efficiency Video Coding (HEVC), also known as H.265, is a video compression standard designed to provide better video quality and compression efficiency than its predecessor, H.264/AVC. It enables higher resolution video streaming and reduced file sizes, making it ideal for 4K and 8K video content.

2. What are the benefits of using HEVC?

HEVC offers several advantages over H.264/AVC, including improved video quality, better compression efficiency, and support for higher resolution video. This leads to reduced storage and bandwidth requirements, making it ideal for streaming services and users with limited internet connections.

3. How does HEVC compare to other video codecs?

HEVC is a more advanced codec than its predecessors like H.264/AVC and offers better compression efficiency. It allows for higher resolution video and increased quality at the same file size. Other newer codecs, such as AV1 and VVC, may provide even better compression efficiency but are not as widely adopted or supported by devices and software yet.

4. What devices and software support HEVC?

Many modern devices and software support HEVC, including smartphones, tablets, TVs, and media players. Popular software and platforms that support HEVC include Apple’s iOS and macOS, Android, Windows 10, and video streaming services like Netflix, Amazon Prime Video, and YouTube. However, some older devices and software may not support HEVC, so compatibility should be checked before using this format.

5. Is there a downside to using HEVC?

While HEVC provides many benefits, it also has some downsides. The main drawback is that it is more computationally demanding, which can result in slower encoding and decoding times, especially on older or less powerful devices. Additionally, not all devices and software support HEVC, which may limit its compatibility and use.

Related Technology Terms

  • HEVC (H.265)
  • Video Compression
  • Bitrate Reduction
  • Block-based Coding
  • Intra Prediction

Sources for More Information


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