3 ms·
You can get a good idea of the current state of the art in pushing bits over copper in internal PCIe cables. Those are short, thick, and pricy and the connecti
by lmz 3y ago
You can get a good idea of the current state of the art in pushing bits over copper in internal PCIe cables. Those are short, thick, and pricy and the connections even within a single chassis often needs a retimer / redriver chip [0] to recover signal integrity.
[0]: https://www.asteralabs.com/smart-retimers/pci-express-retimers-vs-redrivers-an-eye-popping-difference/ https://www.asteralabs.com/smart-retimers/pci-express-retime...
- kjs3 3y agoThat's some pretty cool tech, but 'State of the art' wasn't really what I was talking about. I mean at some point, there's likely a physical limit to how many bits per second that can be pushed down an 4-pair copper networking cable of current girth no matter how clever we get. My bet is that it's north of 100G; a beer to the winner.