Skip to main content

Arris Surfboard SVG2482AC Vs TG862G. Which is better?

Arris Surfboard SVG2482AC (left) and Arris Surfboard TG862G-CT (right)

Arris Surfboard SVG2482AC (left) and Arris Surfboard TG862G-CT (right)

What are both the SVG2482AC and TG862G?

Both the Arris SurfBoard SVG2482AC and Arris Surfboard TG862G are telephony voice gateways or EMTA (embedded multimedia terminal adapter - a combination cable modem and telephone adapter) gateways.

In other words they are a 3 in 1 combo box that includes a fast cable modem, advanced Wi-Fi router and a VOIP box for your telephone connection - all in a single box.

If you do not need a VOIP (Voice Over IP) telephone connection but just a combo box of cable modem and wireless router, then you may want to check out either the Arris Surfboard SBG6782AC or Motorola MG7550 instead.

What you get in the box - Surfboard SVG2482AC

What you get in the box - Surfboard SVG2482AC

Between the SVG2482AC and the TG862G, the Arris Surfboard SVG2482AC is the newer of the two and is also major upgrade to the older Arris SBG6782-AC Surfboard eXtreme that was released about two years ago.

This new gateway provides voice and gigabit broadband speed as well as the Reference Design Kit-B (RDK-B) technology. In fact it is one of the first consumer class gateway to incorporate RDK-B technology.

On the Wi-Fi router side, the Surfboard SVG2482AC features 3x3 802.11ac. With 24 download and 8 upload channels, it has a capability of a top speed of 1,300Mbps on the 5GHz band and up to 450Mbps on the 2.4GHz channel; giving a total of 1750 Mbps.

However what you actually get is dependent on the plan you have with your provider and also the availability of that speed in your area.

As with the SBG6782AC, it also has four Gigabit LAN ports for wired devices.

RDK - Reference Design Kit

RDK - Reference Design Kit

What is RDK-B and how does it benefit you?

With the growth of consumer devices connected to the Internet and the rise of streaming video as well as the Internet of Things (IoT), service providers need to react quickly to adapt and provide faster and more reliable networks to the consumer.

The Reference Design Kit for Broadband (RDK-B) is an open source initiative to standardize software functionalities in broadband devices. This is to enable service providers to efficiently deploy services to a large customer base; thus saving cost and increase profitability!

The RDK-B is an important step forward because it is an integrated open-source software stack which provides a common framework for customers' equipment such as set-top boxes, modems, routers, gateways and other devices to communicate with service providers.

RDK-B solutions provide all needed features to manage complex broadband functions such as Wide Area Networking (WAN), Local Area Networking (LAN), data reporting and management, and home-networking technologies, such as Wi-Fi and Multimedia over Coax Alliance (MoCA).

The service providers use the RDK-B technology to standardize certain elements of these devices; thus enabling them to quickly launch their own new services or customize applications.

The other advantage to RBK-B is the service provider can now actively update the SVG2482AC Gateway's firmware instead having it done by the hardware manufacturer.

For example, Comcast can now actively update the SVG2482AC Gateway's firmware whenever it introduces some new features or implement some bug fixes.

RDK-B can also be used to deliver more with a much better support for IoT devices.

Why is DOCSIS important?

Why is DOCSIS important?

Scroll to Continue


Another important technology utilized by both the Arris AVG2482AC and the Arris TG862G is DOCSIS; specifically DOCSIS 3.0.

DOCSIS stands for Data Over Cable Service Interface Specification, an international standard for data transfer over cable TV (CATV) systems. Internet service providers use it to provide internet access using existing hybrid fiber-coaxial (HFC) infrastructure.

CableLabs led a consortium of thirteen networking and electronics companies that jointly developed the DOCSIS standard.

The first version of DOCSIS, Version 1.0, was published in March 1997 while the latest version, DOCSIS 3.1, was published in October 2013, to meet increasing demands for symmetric services such as IP telephony.

DOCSIS 3.0 is a very practical standard as it maintains cross-version compatibility; devices using older versions can communicate with newer devices using the highest supported version common to both devices.

As mentioned earlier, both devices incorporate the DOCSIS 3.0 technology.

Back of the Arris SVG2482AC

Back of the Arris SVG2482AC

Specifications for the ARRIS SURFboard SVG2482AC Docsis 3.0

The SURFboard SVG2482AC is an Internet, Wi-Fi & Voice Modem and is certified to Work with Internet Service Provider XFINITY.

Here are the specifications:

  • DOCSIS 3.0
  • Optimized for use with XFINITY Internet & Voice Service with RDK-B technology to support next-gen products and services
  • 24 Download and 8 Upload Channels ideal for Internet plans up to 1Gbps
  • AC1750 WiFi Router with 4 Gigabit Ethernet Ports
  • 2 Telephony (VOIP) ports
  • Battery backup for placing and receiving voice calls during power outages
Back of the Arris TG862G-CT

Back of the Arris TG862G-CT

Specifications for the Arris Surfboard TG862G

The Arris Surfboard TG862G uses multi-processor technology to achieve high bandwidth performance without affecting voice quality. Installation is relatively simple and it is supported by Comcast.

Here are the specifications:

  • DOCSIS 3.0
  • Cable Modem requires Comcast internet service. 802.11n Wi-Fi router on 2.4GHz (backwards compatible with 802.11b/g) and 4-port gigabit ethernet router
  • Supports 2 voice lines with Comcast Xfinity or other service provider service
  • Download speeds up to 320 Mbps and upload speeds up to 120 Mbps based on subscribed service from provider
  • Supports both IPv4 and IPv6
  • USB 2.0 host port
  • Ideal for streaming HD video and gaming on multiple devices at the same time

You can get more in depth details on the TG862G-CT by checking on that link.

For easier comparison purpose, I have put the specs of both devices side by side in a table below:

Side by side comparison of the functions and features of the Arris Surfboard SVG2482-AC and the Arris Surfboard TG862G-CT

Side by side comparison of the functions and features of the Arris Surfboard SVG2482-AC and the Arris Surfboard TG862G-CT

ARRIS SURFboard SVG2482AC Docsis 3.0 vs TG862G-CT

Side by side comparison analysis between Arris Surfboard SVG2482AC vs TG862G-CT


DOCSIS Version



DOCSIS Download Speeds

1 Gbps

343 Mbps

Wi-Fi Speeds

1750 Mbps

300 Mbps

Download x Upload Channels

24 x 8

8 x 4

RDK-B technology



Wifi Standard 802.11

AC and backward compatible

N and backward compatible

Gigabit Ethernet Ports



Telephone Ports



USB Ports



Wi-Fi Protected Setup (WPS)



Baterry Backup Available?



2 Year Limited Warranty



Installation & Tech Support by ARRIS



Approximate price at time of writing



Which device is better for your needs?

Which device is better for your needs?

So which is better for you?

First of all, if you are taking the option of buying and owning your telephony gateway, you will not need to pay Comcast the $10 equipment rental fee anymore.

That comes to $120 per year. Assuming that you opt for the Arris Surfboard TG862G-CT and you buy it from Amazon at the price of $120, then you will start saving after one year.

However if you opt for the Arris Surfboard SVG2482AC, then you will start saving after owning the device for two years.

Both scenarios are only taking into consideration of the dollar value without looking at the features and functionalities yet. Taking into consideration that you are covered by two years' warranty, I feel it makes sense to own either the SVG2482AC or TG862GCT - rather than rent from the service provider. .

Comparing functionalities of both

Comparing functionalities of both

What about functionalities?

Both are DOCSIS 3.0. However the maximum theoretical download speed of the SVG2482-AC is 1,000 Mbps while that of the TG862G is only 343 Mbps i.e. approximately one third of the SVG2482-AC.

The total WiFi speed of the SVG2482-AC at 1,Mbps is approximately six times more than that of the TG862G. This could be due to the fact that the router part of the 2482 is AC while that of the 862 is only N.

On top of that, the SVG2482-AC is RDK-B enabled.

All the better features in the SVG2482AC is to be expected as it has been only recently released as compared to the TG862G which was released a couple of years ago.

What's the catch?

What's the catch?

The catch is that right now the SVG2482AC is roughly twice the cost of the TG862G-CT. So the question is this - are you willing to cough up $120 more to get all these fancy features which may not even available to you at the moment?

Are you willing to future proof yourself for $120? It may only be available to you somewhere along the way within the two years. Then again, what is your service cost?

So you will have to make that decision as only you yourself will know what your needs are.

As for me, it is very clear. I will choose either the SVG2482AC or TG862G-CT as a continuous rental of equipment from Comcast is definitely out.

Can you help me?

I always try to ensure that the information I provide benefits my readers and keep improving. So I will appreciate very much if you could kindly take a minute to respond to a survey below.

Arris Surfboard SVG2482AC vs TG862G-CT


eric on February 13, 2019:

My current Xfinity modem/router is the Arris TG1682G/CT-0. I want to know what router I should buy that has the required MOCA technology that supports a whole house Xfinity DVR.

PSS on December 02, 2018:

I purchased the SVG2482AC, had problems

- difficult getting the phones to work, the SVG continued to reboot 9 times

Comcast came out twice . The first time the tech got the voice and WiFi working but after he left lost the voice and modem rebooted continually

-2nd time-out the Tech could not stop the rebooting and stated it could be a SVG hardware problem. In order to get up and running needed to replace the newly purchase with the Comcast SVG modem to resolve.

Returned the SVG to Bestbuy but plan to try again in a couple of weeks. Comcast phone support not the best.

mardidouglass on February 24, 2018:

Picked up the surfboard svg2482ac and hoping we get better connectivity in a two-story layout. router is upstairs, man cave is downstairs. are we gonna be delighted or bummed?

v. Ralph on December 11, 2017:

Arris Surfboard SVG2482AC , was easy to set-up. I had no problem(s).

Pandarichards on December 07, 2017:

I have WOW! as my internet/phone provider. In Feb 2017 they installed the Arris TG862 gateway. The range is spotty in our house (2 story). What kind of Wi-Fi booster would work with this and would it be any help? My daughter constantly complains that the wifi in her room sucks.

Eileen Mac on June 27, 2017:

Is there a gateway compatible w/ Comcast that allows for turning off WiFi when it is not needed? Thank you.

Dwight on May 27, 2017:

For both the the SVG2482AC vs TG862G-CT 2 Telephone ports, do you know the Ringer Equivalent Number (REN) for each of the ports on each of the gateways? I have a wired house system wit a few corded phones and would like to understand how much the Telephone ports can drive

Related Articles