Crossfire will be based on two chipsets - one Pentium 775 read powered with RD400 Northbridge and ATI's SB450 Southbridge. In Crossfire ATI cards works as dual 8X PCIe cards. This board is codenamed Stingray.
The second board is based on Athlon 64 / FX socket for AMD CPUs and using RD480 Northbridge and SB450 Southbridge with dual 8X PCIe cards.
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