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Video codecs

H.264 vs H.265: which is better for IPTV?

H.264 and H.265 (HEVC) are the two video codecs you’ll meet most in IPTV. H.265 gives better picture quality for the same amount of data, which is why 4K relies on it. H.264 plays on almost everything. Which suits you depends on your device more than on the channel.

Updated · 2 min read

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Side by side

H.264 (AVC)H.265 (HEVC)
Standardised20032013
EfficiencyBaselineSimilar quality at a substantially lower bitrate
Typical IPTV useSD and HD channels4K and some HD channels
HDR and 10-bit colourRare in practiceCommon (Main 10 profile)
Device supportAlmost universalMost recent 4K devices; limited on older and budget devices
Decoding effortLightHeavier, so hardware decoding matters

What “more efficient” means for you

A more efficient codec keeps the same picture quality with less data. That gives you:

  • Less buffering on a modest connection, because each channel needs less bandwidth.
  • Less data used on capped or mobile connections. See data usage.
  • 4K that fits through normal broadband.

The trade-off is decoding effort. Without hardware support, H.265 overloads a device, and you get stutter or a black screen.

Choosing in practice

  1. 4K and HDR channels: H.265 is effectively required. Check your device supports it; see HEVC and IPTV.
  2. HD on a capable device: either is fine. Choose H.265 versions on a slower connection.
  3. Older or budget devices: prefer H.264 versions of channels for reliable playback.

If you’re buying a device for IPTV, choose one that decodes H.265 in hardware so both codecs are covered.

FAQ

H.264 and H.265 questions

Does H.265 look better than H.264?

At the same bitrate, yes: H.265 keeps more detail and shows fewer blocky artefacts. At a generous bitrate, the two can look very similar in HD. The difference matters most for 4K and on slower connections.

Why do some of my channels use H.264 and others H.265?

Each channel is encoded separately. Providers often use H.264 for SD and HD channels, for the widest compatibility, and H.265 for 4K channels, where its efficiency is essential.

Should I choose H.265 channels if I have the option?

If your device decodes H.265 in hardware and your connection is modest, yes: you get the same or better quality with less data. If channels stutter or show a black screen, choose H.264 versions.

Sources

Facts on this page were checked against these sources. Details were correct when checked; apps and devices change, so we review this page regularly.

  1. ITU-T Recommendation H.264: Advanced video coding, International Telecommunication Union (2026-09-27)
  2. ITU-T Recommendation H.265: High efficiency video coding, International Telecommunication Union (2026-09-27)

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