I don't know for sure either.<br>Obviously nVidia does not make their own cards.<br>I think ATI does because you can buy the 3870 right from their web site.<br>You'll be able to buy the 4870 from their web site also.<br><br>4870x2 is the cat's meow. <br>IMO, Apple will never offer it in a million years. <br>I believe that even though it is one card, it requires a crossfire driver.<br>For whatever reason Apple has never offer sli or cf cards.<br><br><br>
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