My question is this: Nvidia 7800 Cross-fire Video
cards having 512MB on board ram on each card.
When useing two cards in the X-fire configeration,
does this act as 1024MB RAM or does it just give
each card 512 MB RAM independent of each other?
I tried to find out on the Nvidia web site but it
didn't find the answer.

For those that answer this and know what their
talking about I'd like to thank you now. :D

[ 02-03-2006, 10:13 AM: Message edited by: TheCrimsomBlade ]

...well, using SLI, (not Crossfire, that's ATI's standard), I'm pretty sure they each use their own onboard memory for the part of the screen they're responsible for.

Have you tried?
http://www.tomshardware.com/index.html
A good resource/reseach site.

I thought I'd read somewhere, but not sure where, that they would act like one big card. Felix's link would be the best bet though. Oh, Hi TCB...

Thanks again and Robert & ILander are both right
you can configure them so one render the top and
the other the bottom or they can work as one card
and combine Ram to work together. it all depends on
the card manfacturer and the chip set on the card'

Thanks for the Link Felix you can get a complete explanation of both set ups and these combinations are more complex than I ever thought.

THANKS AGAIN GUYS
TCB :D