What is the role of the video card in video editing?

When you render an edited video, is it the video card that actually does the rendering process, or is it the CPU, or both of them? When you are running a video editing software such as Final Cut or Sony Vegas, what is the video card doing?
Thanks for your help.

Some video editing programs can use the graphics card for additional computing power, but most of the time they simply display what’s going on.

One Response to “What is the role of the video card in video editing?”

  1. Some video editing programs can use the graphics card for additional computing power, but most of the time they simply display what’s going on.
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