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by phillco 597 days ago
Incidentally, it was observed that the new iMac can support an external 8K 120Hz display: https://x.com/vadimyuryev/status/1850929080281321899
1 comments
throwaway48476 597 days ago
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.
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whatever1 597 days ago
Maybe some sort of compression?
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throwaway48476 597 days ago
That level of compression would kill latency and cause artifacts.
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wtallis 597 days ago
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.
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throwaway48476 597 days ago
Must be subsampling because DSC gets you to 70hz at 8K.
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whatever1 597 days ago
They fixed the spec sheet. Now they report 8k60hz.
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