*Source: TweakTown (
http://www.tweaktown.com/news/7786/index.html)*
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If we're to believe information posted on HKEPC, AMD is working on CrossFire for three cards and the RD790 chipset will be the first to support three cards. Although not a lot of information is known at this time, the addition of HyperTransport 3.0 and PCI Express 2.0 makes this chipset a clear candidate for new features.
Add to this 41 PCI Express lanes and its clear that AMD is working on something, although Physics is of course one of the most touted applications for a third card. However, HKEPC claims that the performance improvement of adding a third card raises CrossFire performance from 1.8x to 2.6x by going from two to three cards over a single card.
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