Support XFINITY Internet Is Your Computer or Internet Speed Too Slow?


Do you think your computer may be running too slowly? Learn how to analyze your computer's speed and find out if it's performing at the level it should be.


Are you concerned about your computer’s speed and want to check to make sure it’s running as fast as possible? While your Internet speed determines how fast your computer or network can load websites or download files, your computer’s processor speed and amount of memory (or RAM) affects the speed with which you can open and run programs.

  • Processor speed indicates how fast your computer runs, and is measured in megahertz (MHz) and gigahertz (GHz). Comcast recommends a minimum of 800 MHz for Mac computers and 1.5 GHz for PCs using Windows.
  • Memory or RAM is storage space your computer uses to store and read data. The more memory your computer has, the faster it can open and run programs. Comcast recommends at least 1GB of memory for all computers, and more is better. RAM can be added to your computer physically with a piece of hardware known as a RAM module.

Even with a fast Internet connection, low processor speeds or memory can slow down your computer’s entire system. If you’re concerned about your computer’s performance, you’ll want to run both an Internet speed test and a computer speed test.

You can check your Internet speed with the free XFINITY Speed Check to determine how long it should take you to download and upload data. To get started, see XFINITY Speed Check.

You can check your computer including processor speed and available memory by reviewing the operating system information for Windows and Mac that follows.


  1. Click Start.
  2. Select the Control Panel.
    Navigating to the Control Panel from the Start Menu in Windows
  3. Select System. Some users will have to select System and Security, and then select System from the next window.
    The Control Panel in Windows
  4. Select the General tab. Here you can find your processor type and speed, its amount of memory (or RAM), and your operating system.
    The General tab in the Control Panel displaying system information - Windows


  1. Click on the Apple icon.
  2. Select About This Mac from the drop-down menu.
    The Apple drop-down menu - Mac OS X
  3. Click the More Info button. Here you can find your processor type and speed, its amount of memory (or RAM), and your operating system.
    About this Mac - Mac OS X

Additional Troubleshooting

If your computer is running slower than usual, you can also see Troubleshoot a Slow Computer for some basic troubleshooting tips to bring your speed back to normal.

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