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> How is that data stored?

So glad you asked. It's stored poorly because I'm bad at maths and I'm mixing up bits and bytes.

That's what I get for posting on HN while in a meeting.

I would guess 3 colour channels at 16bit (i.e. 2 bytes)

(2^32)÷(1920×1080×4×3×2) = 86

Where does the 4 come from? I thought it was R+G+B+A, but you already have 3 colour channels in that calculation

Yep, my logic is faulty there. And even if we assume that it's 24bpp color, that's still a factor of 2 out.

Apparently with 24 bytes per pixel instead of bits :) Although to be fair, there's HDR+ and DV, so probably 4(RGBA/YUVA) floats per pixel, which is pretty close..