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Why does is it make sense to compare RGB32 to YUV?

I would’ve thought simple RGB24 to be a more apt comparison in the context below:

With RGB32, you need 32 bits per pixel. With an YUV 4:2:0 format, for 4 pixels you need to store a total of 6 samples, so 6x8= 48 bits. That is effectively 48/4 = 12 bits per pixel, so only 37.5% of RGB32. That matters.

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This was in the context of using the video as a texture. As I tried to explain, the RGB texture formats with 8-bit precision use 32-bit words. There are no 24-bit formats available as a texture format. NV12 is also a native texture format, so it makes sense to compare these two formats in this context.

That makes sense, thanks. Nice write up btw.

I'm confused as well. Idk why the author is comparing RGB32 to YUV.

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