Does GPU need a lot of processing power

Intel Celeron 2.80 ghz processor
January 6, 2011 at 13:42:27
Specs: Windows 7, Intel Celeron 2.8Ghz

I'd like to know if having a graphics card installed on a desktop computer (e.g. any Nvidia card) uses more processing power than if you just used the internal graphics card that comes with some motherboards.


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January 6, 2011 at 14:05:02
Just the opposite.

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January 6, 2011 at 14:50:19
One of the advantages of a more advanced video card is that it reduces the workload on the CPU.

Take the example of drawing a line.
In very old video systems the CPU would have to calculate the position of each pixel and then put the necessary data in video memory. This was very time consuming.

In a more modern video system the CPU simply tells the video processor "draw a white line between points x and y", and then continue with other things. Modern video cards can do far more complex things than that, all with little intervention by the CPU.

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January 6, 2011 at 20:02:35
Oh right, Thanks very much for that!

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