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I know that I can view CPU usage using System Monitor:

8-core CPU usage in Ubuntu

Is there such a tool for viewing GPU usage, as well?

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this ques has already been answered hope this helps – hunt Mar 18 '14 at 17:09
up vote 2 down vote accepted

Yes, but it is in the proprietary drivers, it is called nvidia-smi. See [1]


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This only applies to Nvidia drivers.... – Joren Oct 30 '13 at 9:34
@Joren, yes, because the question says "Nvidia GPU"... – Gerhard Burger Oct 30 '13 at 11:08
I interpret this answer as "No, unless you switch to the Nvidia drivers"—disappointing, but a valid answer. – ændrük Dec 7 '14 at 15:06

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