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throwaway48476
on Oct 28, 2024
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New iMac with M4
Not sure how that's possible. With 80gbit you can only do 8K 90hz. 120hz would need the 120gbit of the 3 lane alt mode of thunderbolt 5.
whatever1
on Oct 29, 2024
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Maybe some sort of compression?
throwaway48476
on Oct 29, 2024
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parent
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That level of compression would kill latency and cause artifacts.
wtallis
on Oct 29, 2024
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root
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Either Display Stream Compression or 4:2:2 chroma subsampling will easily make 8k120 fit into 80Gb/s with minimal added latency and artifacts that are barely visible to the trained eye.
throwaway48476
on Oct 29, 2024
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root
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Must be subsampling because DSC gets you to 70hz at 8K.
whatever1
on Oct 29, 2024
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root
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parent
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They fixed the spec sheet. Now they report 8k60hz.
throwaway48476
on Oct 29, 2024
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root
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parent
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That's one way to do it. :)
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