# Transcoding 4K Requirements

**URL:** <https://forums.plex.tv/t/transcoding-4k-requirements/136994>\
**Category:** Plex Media Server\
**Tags:** server-windows\
**Created:** [February 28, 2016, 1:13am UTC](https://forums.plex.tv/t/transcoding-4k-requirements/136994 "2016-02-28T01:13:21Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![anon18523487](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@anon18523487](https://forums.plex.tv/u/anon18523487)\
**Post date:** [February 29, 2016, 10:08am UTC](https://forums.plex.tv/t/transcoding-4k-requirements/136994/3 "2016-02-29T10:08:37Z")

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PMS recommends a CPU with a passmark score of 2000 for a 10 Mbps video so an 80 Mbps video would need a score of 16,000. This is also assuming you are referring to H264 video. H265 takes a lot more power, so consider at least double the score needed if it is H265.

PMS when transcoding runs at 100% cpu load for the first minute to build up a buffer, so looking at the first minute is not a good indicator of the cpu usage needed. Either look later or check the server log itself for the “speed=” value.

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