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Does A High End Graphics Card Affect An Image's Render Quality?

Asked by zonkerman in Video Cards, 3D-Studio 3D Graphics Software, Maya

Tags: 3d rendering opengl directx nvidia ati 3ds max maya

Hello everyone.
I am trying to put together a PC that I can used for creating 3D content such as 3D images rendered from 3D Studio Max or Maya. I am somewhat confused at this point on what video card to get.  I've heard from several persons that the Video card does not affect the render time of an image. Basically I've heard that the render process is all performed by the PC's CPU and that the video card only affects what you see on screen while you are designing but not the final render.  

So if an image takes 16 hours to render the only way to reduce the render time is to get a faster CPU or more CPUs but not a better video card.  Is this true?

Does this also mean then that the video card on the pc that is rendering an image does not affect the quality of the image being rendered?  In other words, the 3d image quality of an image designed and rendered on a PC with a cheap video card such as an NVidia 8800GT(which costs about ($200) will look just as good as a pc with an expensive video card such as an NVidia Quadro FX 4800 (which costs about $1,600)? The textures such as metals and such will look just as high quality on both PCs final rendered image file (i.e. .png file formats)?

The most helpful responses to these questions for me will be those that can provide internet links to articles from reputable sources.  Thanks in advance.

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