Amd Volcanic Islands details

[zalbard]

http://videocardz.com/46186/amd-rade...d-october-15th

Great to see that Eyefinity now doesn't care which display outputs are being used.

I don't understand why they didn't just update the crossfire bridge. I don't see what the big deal is, it comes with the card.

Looks like my assumption from before may be correct. From the article:

AMD R9 graphics cards will not use CrossFire bridges, instead each card will communicate through PCI-E interface. This could mean that AMD went back to their original idea of SidePort, although this is just a theory coming from few years back. This technology basically fixes most of the AMD’s frames pacing problems, especially with CrossFire configuration, at least that’s what the leaked slide tells us.

[Greg83]

likely its not that removing it had not performance penalty, but keeping it , did hurt performance.
maybe they found the low latency, low bandwhich crossfire link was harming performance. unless they create a 16x pci-e on the top for the crossfire , it doesn't actually make any sense
now that they're trying to prevent lag, micro stuttering. if you have a lower latency bus for crossfire. you introduce a calculation differential .
does 1x pci-e bandwhich really make any difference.

sounds like crossfire left the old realm, of copy all to both cards, process 1/2 on each. to how that hybrid ati + nvidia card tech was gonna work.

maybe this will also result in closer to 100% scaling now.

even ati said in 4870's time that the crossfire link had become pretty useless and only became a bus used to say "hello" and initiate crossfire.