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There are Ten current HSI tiers.

These are the Advertised Rates of service as follows:


Economy: 1.5 Mbps / 384 Kbps [1500 kbps / 384 Kbps]


Economy Plus: 3 Mbps / 768 Kbps [3000 Kbps / 768 Kbps]


Performance Starter: 6 Mbps / 1 Mbps [6000 Kbps / 1000 Kbps]


Performance: 20 Mbps / 4 Mbps [20000 Kbps / 4000 Kbps] ( DOCSIS 3.0 tier )


Performance: 25 Mbps / 5 Mbps [25000 Kbps / 5000 Kbps] ( DOCSIS 3.0 tier )


Blast: 50 Mbps / 10 Mbps [50000 Kbps / 10000 Kbps] ( DOCSIS 3.0 tier )


Blast: 50 Mbps / 15 Mbps [50000 Kbps / 15000 Kbps] ( DOCSIS 3.0 tier )


Extreme 105: 105 Mbps / 20 Mbps [105000 Kbps / 20000 Kbps] ( DOCSIS 3.0 tier )


Extreme 305: 305 Mbps / 65 Mbps [305000 Kbps / 65000 Kbps] ( Fiber To The Home / FTTH tier )


Extreme 505: 505 Mbps / 100 Mbps [505000 Kbps / 100000 Kbps] ( Fiber To The Home / FTTH tier ) **Upgrade


The Provisioned Rates which are the overhead/caps are as follows:


Economy: 1500 Kbps / 384 Kbps
Downstream: 1500 Kbps
Upstream: 384 Kbps

This translates into about 187.50 KB/sec maximum transfer rate when you are downloading and about 48 KB/sec maximum transfer rate when you are uploading.


Economy Plus: 3000 Kbps / 768 Kbps
Downstream: 3000 Kbps
Upstream: 768 Kbps

This translates into about 375 KB/sec maximum transfer rate when you are downloading and about 96 KB/sec maximum transfer rate when you are uploading.


Performance Starter: 6000 Kbps / 1000 Kbps
Downstream: 6600 Kbps
Upstream: 1100 Kbps

This translates into about 825 KB/sec maximum transfer rate when you are downloading and about 137.50 KB/sec maximum transfer rate when you are uploading.

Performance: 20000 Kbps / 4000 Kbps (DOCSIS 3.0 tier)
Downstream: 22000 Kbps
Upstream: 4400 Kbps

This translates into about 2750 KB/sec maximum transfer rate when you are downloading and about 550 KB/sec maximum transfer rate when you are uploading.


Performance: 25000 Kbps / 5000 Kbps (DOCSIS 3.0 tier)
Downstream: 27500 Kbps
Upstream: 5500 Kbps

This translates into about 3437.5 KB/sec maximum transfer rate when you are downloading and about 687.5 KB/sec maximum transfer rate when you are uploading.


Blast: 50000 Kbps / 10000 Kbps (DOCSIS 3.0 tier)
Downstream: 55000 Kbps
Upstream: 11000 Kbps

This translates into about 6875 KB/sec maximum transfer rate when you are downloading and about 1375 KB/sec maximum transfer rate when you are uploading.


Blast: 50000 Kbps / 15000 Kbps (DOCSIS 3.0 tier)
Downstream: 55000 Kbps
Upstream: 16500 Kbps

This translates into about 6875 KB/sec maximum transfer rate when you are downloading and about 1875 KB/sec maximum transfer rate when you are uploading.


Extreme 105: 105000 Kbps / 20000 Kbps (DOCSIS 3.0 tier)
Downstream: 116000 Kbps
Upstream: 22000 Kbps

This translates into about 14500 KB/sec maximum transfer rate when you are downloading and about 2750 KB/sec maximum transfer rate when you are uploading.


Extreme 305: 305000 Kbps / 65000 Kbps (Fiber To The Home / FTTH tier)
Downstream: 335500 Kbps
Upstream: 71500 Kbps

This translates into about 41937.5 KB/sec maximum transfer rate when you are downloading and about 8937.5 KB/sec maximum transfer rate when you are uploading.


Extreme 505: 505000 Kbps / 100000 Kbps (Fiber To The Home / FTTH tier)
Downstream: 555500 Kbps
Upstream: 110000 Kbps

This translates into about 69437.5 KB/sec maximum transfer rate when you are downloading and about 13750 KB/sec maximum transfer rate when you are uploading.


These provisioned rates do not reflect PowerBoost


Acceptable download/upload speeds by opinion are 80% of your advertised rates.


Actual speeds may vary and are not guaranteed.


If you are running a home network, keep in mind that this bandwidth is shared amongst each computer.
A computer accessing the home network at the same time as another computer, will not get the full bandwidth. It will be distributed between the computers.

Note:
b = bits
B = Bytes


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*This FAQ is based on user knowledge from a volunteer core of BroadbandReports' members. This FAQ in no way constitutes official information from Comcast or any of its affiliates.





Feedback received on this FAQ entry:
  • Need Extreme 150 in there too. Thanks!

    2014-07-12 10:50:16 (Coelispex See Profile)



Expand got feedback?

by Johkal See Profile
last modified: 2013-11-24 11:35:39