Comcast reports quadrupled speeds in new '10G' broadband test
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Comcast (CMCSA
+0.5%) has laid claim to a first-of-its-kind test of "10G" modem technology - known as DOCSIS 4.0 - that delivered upload and download speeds of 4 gigabits per second.
That's about quadruple the typical speeds promised by high-end fiber providers throughout the country.

The company says it tested a full-duplex DOCSIS 4.0 system-on-chip cable modem built by Broadcom (AVGO
-2%) as its latest milestone in the speeds that the cable broadband industry are calling "10G" (unrelated to the wireless 5G standard).
The new standard promises not only the scaled speed but also lower latency and increased reliability and performance.
Last April, Comcast had completed the first live lab test of a 10G system-on-chip. And in October, it says it pulled off a successful test of a complete 10G connection using a virtualized cable modem termination system.
On a busy day for Comcast, its NBCUniversal unit selected a partner in its effort to find a new ratings alternative, and it came to a content carriage deal with ViacomCBS.