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There are Eight current HSI tiers.

These are the Advertised Rates of service as follows:


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


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

Performance: 25 Mbps / 5 Mbps [25000 Kbps / 5000 Kbps]


Performance 50: 50 Mbps / 5 Mbps [50000 Kbps / 5000 Kbps]


Blast: 50 Mbps / 10 Mbps [50000 Kbps / 10000 Kbps]


Blast 105: 105 Mbps / 10 Mbps [105000 Kbps / 10000 Kbps]

Extreme 150: 150 Mbps / 20 Mbps [150000 Kbps / 20000 Kbps] 

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

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


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: 7200 Kbps
Upstream: 1200 Kbps

This translates into about 900 KB/sec maximum transfer rate when you are downloading and about 150 KB/sec maximum transfer rate when you are uploading.

Performance: 25000 Kbps / 5000 Kbps 
Downstream: 30000 Kbps
Upstream: 6000 Kbps

This translates into about 3750 KB/sec maximum transfer rate when you are downloading and about 750 KB/sec maximum transfer rate when you are uploading.


Performance 50: 50000 Kbps / 5000 Kbps 
Downstream: 60000 Kbps
Upstream: 6000 Kbps

This translates into about 7500 KB/sec maximum transfer rate when you are downloading and about 750 KB/sec maximum transfer rate when you are uploading.


Blast: 50000 Kbps / 10000 Kbps 
Downstream: 60000 Kbps
Upstream: 12000 Kbps

This translates into about 7500 KB/sec maximum transfer rate when you are downloading and about 1500 KB/sec maximum transfer rate when you are uploading.


Blast 105: 105000 Kbps / 10000 Kbps 
Downstream: 126000 Kbps
Upstream: 12000 Kbps

This translates into about 15750 KB/sec maximum transfer rate when you are downloading and about 1500 KB/sec maximum transfer rate when you are uploading 

Extreme 150:
150000 Kbps / 20000 Kbps 
Downstream: 180000 Kbps
Upstream: 24000 Kbps

This translates into about 22500 KB/sec maximum transfer rate when you are downloading and about 3000 KB/sec maximum transfer rate when you are uploading

Extreme 505: 505000 Kbps / 100000 Kbps (Fiber To The Home / FTTH tier)
Downstream: 606000 Kbps
Upstream: 120000 Kbps

This translates into about 75750 KB/sec maximum transfer rate when you are downloading and about 15000 KB/sec maximum transfer rate when you are uploading.


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:
  • I agree, you are doing an awesome job with the FAQs you edit. We are so fortunate you are willing to take the time to do this!

    2015-03-29 17:27:40 (sortofageek See Profile)

  • Thank you for this! This is the only place I could find the upload speeds for Comcast.

    2015-01-30 23:24:52

  • Nicely done, thank you!

    2014-07-20 13:51:22



Expand got feedback?

by Johkal See Profile
last modified: 2015-04-19 13:40:59