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AV1 VS HEVC - Quick Guide about Two Video Codec

Author by Cooper

Updated on Apr 25, 2022

There are many articles describing AV1 and HEVC, which contains a lot of information. To make everyone understand the difference between the two codecs is what the article is introduced to you for. Check it now.

HEVC, High Efficiency Video Coding is a successor to AVC, which is also called H.264. What is AV1? AV1, is a new replacement for VP9, which is one of the newest video codecs. To learn about AV1, you should better know well about its premier version – VP9, which is well known as the main competitor of HEVC. Due to the compression ratio of 34% higher than VP9, AV1 is widely used for streaming videos on the Internet and web browsers nowadays. Many HTML5 videos and videos on popular video-hosting sites are encoded with this codec. In conclusion, we can say that AV1 provides a better compression ratio than VP9 and HEVC. But to various preference parameters, I will show you more comparisons on the most important aspects in the following content. Scroll down now to find what you want to know about two new video codec.

Read More: Reduce Video Size | H.265 VS H.264 | XAVC S VS AVCHD

AV1 VS HEVC – Exhaustive Difference Between AV1 and HEVC

1. Compression Ratio

As shown above, comparing to VP9, HEVC provides a 34% (100 – 100/134) lower compression ratio than AV1. In other words, AV1 saves more bit rate and its coding efficiency can be about two-times higher than HEVC.

By the way, about the compression ratio, it determines the number of bit per second, which means a higher compression ratio can help to reduce video file size. So it is also the main reason why AV1 is widely used in video streaming on the Internet.

2. Video Quality

In the first aspect - frame rate, which influences the fluency of videos. HEVC’s: The HEVC standard defines two tiers, the maximum frame rate can arrive at 300 FPS, which is used for very demanding applications. Another one is the normal or main one, which is designed for most applications with frame rates from 15 to 60 FPS. AV1’s: The most used FPS in AV1 encoded videos are 25. The second aspect – resolution: HEVC’s: It supports resolution up to 8192x4320, i.e. the known UHD videos. AV1’s: 7680×4320 is the maximum supported by AV1.

3. File Size

To be honest, this part is not a basic parameter of any codec. But in order to make you understand well about the differences, I would like to introduce it to you. The file size is usually influenced by the parameters listed above, i.e. bit rate, compression ratio, and frame rate. (Although this only considers the video track part, you can also apply these parameters to the audio track, most of which are the same.) So, we can draw a conclusion that AV1 file size is usually smaller than HEVC video files in the same conditions, such as the length of the video and the resolution.

At last...

After learning the basic information about AV1 VS HEVC, I am sure you have some denouement. Share your point with your friends or maybe to me. I’m glad to work out your questions.

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