Crossfire Xpress 3200: A Chipset Overview
 

Through development the chipset was called RD580, but today ATI launches their new dual x16 Northbridge with the official name of Crossfire Xpress 3200. This contrasts to the earlier Radeon Xpress 200, a name which covered both the single x16 and dual x8 Crossfire versions of the Rx480 chipset.