3 ms·
It would add too much latency (even if it would be only a few milliseconds.)
by phonon 3y ago
It would add too much latency (even if it would be only a few milliseconds.)
- lolc 3y agoFew milliseconds is way off. Over fiber I get sub-milli ping to the datacenters in the same city.
- phonon 3y agoA cable doesn't have the bandwidth of chip to chip so it will be have to serialized/deserialized or decoded etc.
- lolc 3y agoIf we take USB4 80 Gbps as a guideline: That's 80 mbit per millisecond. Apple says their goggles have 23 mpixels. So if we multiply by 24 bits for color, transmission has a lower bound of 7 ms per frame. So I agree now that the delay is in milliseconds which can push perception into nausea. I hadn't considered the pixel density. Of course they could use something faster than USB4, but it wouldn't be easy to go below 1 ms I guess.