I run XBMC on an old laptop and it struggles, but manages to play, X.264 encoded videos.
However, it doesn't handle X.265 videos very well - pauses every few frames.
How come? I'm assuming its because 265 is much more CPU intensive.
What's the typical compression benefit of using x.265 vs x.264?
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Update: noticed this comment below from @Causality1 "devices from over a decade ago have hardware h264 decoders. Extremely low powered modern devices can play very large 265 videos, if they have a hardware decoder."