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For video it's not as easy as it takes way more compute and requires hardware support.

You can take any random device and it will be able to decode h264 at 4k. h265 not so much.

As for av1 - my Ryzent 5500GT released in 2024 does not support it.

I think the only cpus with av1 support right now, whether encode, decode or both, are tile era Meteor/Lunar/Arrowlake cpus from Intel.

Actually, it goes back to Tiger lake (2020; 2021 for desktop). [0]

Addendum: AMD since RDNA2 (2020-2021-ish) [1], NVIDIA since 30 series (2020) [2], Apple since M3? (2023).

Note: GP's processor released in 2024 but is based on an architecture from 2020.

Apple M3 and newer CPUs and A17Pro and newer mobile CPUs also have hardware AV1 decode.