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H.265 vs H.266: VVC Next-Gen Codec Compared to HEVC

Published on April 19, 2026

H.266 (Versatile Video Coding, or VVC) reduces bitrate by about 50% compared to H.265 (HEVC) at equivalent visual quality. It was finalized in 2020 as the direct successor to HEVC, but hardware and software support is still catching up.

Compression Gains

H.265 already halved the bitrate of H.264, and H.266 does it again. A 4K stream that needs 15 Mbps in H.265 would need roughly 7-8 Mbps in H.266. This is achieved through 67 intra prediction modes (up from 35 in H.265), more flexible block partitioning with multi-type tree structures, and improved in-loop filters. The gains are most dramatic at 4K and 8K resolutions, where large frames give the codec more data to optimize.

Encoding Complexity

H.266 encoding is roughly 10x more computationally expensive than H.265. Software encoders like VVenC can take hours for a single 4K video. This makes H.266 impractical without dedicated hardware encoders, which are only now appearing in the latest chipsets from Qualcomm, MediaTek, and Intel. H.265 encoding, by comparison, is mature and widely accelerated by GPUs and dedicated silicon.

Hardware and Software Support

H.265 decoding works on virtually every device made after 2015, including phones, TVs, game consoles, and streaming boxes. H.266 hardware decoding started appearing in 2024-2025 chips, but mainstream adoption remains limited. No major browser natively supports H.266 playback yet. Media players like VLC have experimental VVC support, but it is not production-ready for most users.

Licensing

Both codecs carry patent licensing fees, which has been a criticism of the MPEG codec family. H.266 licensing is managed through multiple patent pools (MPEG LA, Access Advance, VVC Advance), making the fee structure complex. This is one reason royalty-free alternatives like AV1 continue to gain traction alongside VVC development.

Which One Should You Use?

  • H.265: The practical choice today. Broad device support, mature encoders, and proven quality for 1080p through 4K content.
  • H.266: Future-facing. Worth considering if you are building infrastructure for 8K streaming or bandwidth-constrained delivery where hardware decoders are guaranteed.

For converting or compressing video with H.264 encoding (the most compatible codec), use our video compressor or video to MP4 converter.

Related reading: H.264 vs H.265 covers the previous generation comparison, AV1 vs H.265 compares the royalty-free alternative, H.264 vs AV1 looks at the open-source next-gen codec, and 4K vs 8K covers the resolutions where VVC shines most.