Dual video cards for the mac?

Hey this is a question for the mac users

I was wondering if there is an advantage in having dual video cards and im not talking about dual monitors. 2 video cards inside the mac. is there a speed test out there on the net? Im asking because i want to know for a video/3d animation editor for a macpro is there an advantage in having dual video cards each one being nvidia geforce 7300gt 256mb or is it better to have one video card the ati radeon x1900 xt 512mb. I want to find out which one would make render time faster|||To get greater speed by coupling two video card together Windows computers have two choices. They can use either SLI mode with NVIDIA video cards or Crossfire mode with ATI Radeon video cards. In addition with either approach you need two PCI express X16 slots on the motherboard; two identical video cards that support either SLI or Crossfire; and a motherboard that supports either SLI or Crossfire.



The Mac does not support SLI and Crossfire technology with its motherboard; Macs don’t have the chipset. Therefore for the maximum speed use the fastest single video card your Mac supports.

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Graphics card gaming performance charts:

http://www23.tomshardware.com/graphics.h…

http://www.pcper.com/article.php?aid=399…

http://www.fudzilla.com/index.php?option…



http://www.tomshardware.com/2007/08/06/t…



Integrated/Mobile Graphics - Benchmark List

http://www.notebookcheck.net/Mobile-Grap…



The Integrated/Mobile Graphics Card Info Page

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