You're ignoring signalling and overhead. The actual usable bandwidth is about 17... | Hacker News

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		milen on Oct 16, 2014 \| parent \| context \| favorite \| on: iMac with Retina 5K display You're ignoring signalling and overhead. The actual usable bandwidth is about 17.3Gbps, thus not enough (for 60fps uncompressed stream). DisplayPort v1.3 can deliver 25.92Gbps of usable bandwidth, thus required for 5k [1]. [1] http://www.extremetech.com/electronics/190130-displayport-1-...

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