how to update catalyst v3 to v4

[samsc]

which video card is better to catalyst v4? We would like one video card with both dvi ports.
and we need know the link to contact catvx to buy the dongle licenses.
our powermac g5 dual processor have 10.3.6 osx at 2 gb. with 512mb ddr ram
is better update the osx to the leopard or to 10.4 osx?



we want upgrade the catalyst to be operative with HD. I need purchase the kit to upgrade it and need the info to upgrade this myself

Miguel -

You have older machines -

We need to know a more complete spec.

When you say "operative with HD" what do you mean by this?
Have you any experience with this?

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Leopard is not recommended -