Improve video quality by controlling CPU usage

When hosting or speaking in a webinar, you join into a real time video call and you will often be sharing video from a local camera and sharing your screen.

Broadcasting high-quality video requires processing power of your computer’s CPU. If this isn’t available during the webinar, Chrome will drastically lower the quality of the video being broadcast to ensure the real time connection keeps running.

We generally recommend CPU usage on the computer be limited to a maximum of 60–70% while running a webinar.

Is my computer powerful enough to run webinars?

If you experience low video quality in webinars, it is worth confirming that the computer isn’t running out of resources.

Be particularly mindful of the usage if the video quality on your camera drops when sharing your screen, since sharing two concurrent video streams may be extra taxing for older computers.

How do I see my CPU usage?

On Windows computers you can see CPU usage in the Windows Task Manager. Press Ctrl+Shift+Esc to launch Task Manager, then, click the Processes tab and choose “Show processes from all users”. You should now see everything running on your PC at the moment. Then click the CPU column header to sort by CPU usage.

On Mac computers the same information is available in Activity Monitoring. To find Activity Monitor on a Mac, go to your Applications folder > Utilities folder, and then double-click Activity Monitor.

What can I do to minimize CPU usage during webinars?

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