said by buzz_4_20:
Upload is limited by the tech, but not as much as the end user gets.
The tech (DOCSIS 3.0) limits upload to a bit over 50% of the download speed (per channel).
TW is no where close to that ratio on upload.
A QAM channel, which is what a downstream channel is, is about 38mbit.
Upstream channels are ~10mbit.
DOCSIS 3.0 bonds 8 downstreams and 8 upstreams. That is about ~310mbit down max and ~80mbit up max. A little more than 25%, not close to 50%.
No, the end user doesn't get 25% either, but they won't be getting 50% unless their downstream is limited while their upstream is raised.