H.264 is also a more established and widely used format, so it you might find that it's compatible with a wider range of devices and software. This means that some older devices or devices with less powerful processors may not be able to handle H.265 files as well as H.264 files. However, H.265 requires more computational power to encode and decode than H.264. This means that H.265 can produce the same quality video as H.264, but with smaller file sizes, or higher quality video at the same file size.Īdditionally, H.265 supports higher resolution and frame rate video than H.264, which makes it well-suited for applications such as Ultra HD (4K) and high-speed video. H.265 provides higher video quality and compression efficiency than H.264, at the same bit rate. So, what's the main difference between H.264 and H.265? It's their performance. The main differences between H.264 and H.265 H.265 uses advanced techniques like prediction across multiple frames, transform coding, and entropy coding to achieve its improved performance. It's designed to provide even better video quality and compression efficiency than H.264, as well as support for higher resolution and frame rate video. H.265, also known as HEVC (High Efficiency Video Coding), is a newer video compression standard that was first published in 2013. H.265: The next generation of video compression H.264 is known for its high-quality video, even at low bit rates, and for its ability to efficiently compress and decompress video data. It's used in a variety of applications, including high-definition video, Blu-ray discs, and streaming video on the internet. H.264, also known as MPEG-4 Part 10 or AVC (Advanced Video Coding), is a video compression standard that was first published in 2003. H.264: The original digital video standard Both are widely used for encoding and decoding digital video, but there are some significant differences between the two. This reduction in bitrate can have a significant impact on edge cache costs because the file size is now smaller when video is delivered to end consumers.Īnd in some scenarios, like delivery to a high-resolution tablet via 4G, this may allow the viewer to watch a 1080p stream, rather than a 720p stream, improving the overall quality of the viewing experience.If you're working with digital video, you may be wondering about the differences between the H.264 and H.265 video formats. The main takeaway to remember: In general, HEVC should deliver the same quality video as H.264 at roughly half the data rate, though this will vary by type of content.įor a 1080p stream, for example, a publisher might be able to cut the data rate from 8Mbps to 4Mbps with no loss in quality. HEVC also aligns with the push towards high-resolution Ultra HD 4K and 8K video in the mainstream market, as only HEVC and newer codecs are broadly supported by TVs for 4K. In the mobile streaming market, the HEVC codec offers bitrate reduction of 30–50 percent to achieve comparable quality to H.264, which is realized in video delivery cost savings across networks.Īssuming a given device can decode HEVC, mobile operators don’t need to deliver as much data for a given quality level, making for lower costs and more reliable video playback. ½ pixel 6-tap filter, ¼ pixel linear interpolationĪdaptive deblocking filter and sample adaptive offset filter Up to 15 past and/or future reference frames, including long-term references Up to 16 past and/or future reference frames, including long-term references Each size can be partitioned up to 8 ways, and does not need to be a square.Ĭontext adaptive binary arithmetic coding (CABAC) and context adaptive VLC tables (CAVLC)Ĭontext adaptive binary arithmetic coding (CABAC) Multi-direction, multi-pattern, 9 intra modes for 4x4, 9 for 8x8, 4 for 16x16ģ5 modes for intra prediction, 32x32, 16x16, 8x8 and 4x4 prediction sizeģ2x32, 16x16, 8x8 and 4x4 DCT-like Integer TransformĦ4圆4 and hierarchical quad-tree partitioning down to 32x32, 16x16, 8x8. Motion compensated predictive, residual, transformed, entropy coded
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