Unified Media Interface

The Unified Media Interface (UMI) interconnect is the link between an AMD Accelerated Processing Unit (APU) and the FCH (Fusion Controller Hub).{{Cite web |last1=Ku |first1=Andrew |title=AMD Fusion, Brazos, Zacate |url=http://www.tomshardware.com/reviews/amd-fusion-brazos-zacate,2786-3.html |website=Tom’s Hardware |date=9 November 2010 |access-date=15 August 2011}}.{{cite web |last1=Shimpi |first1=Anand Lal |title=Previewing AMD's Brazos, Part 1: More Details on Zacate/Ontario and Fusion |url=https://www.anandtech.com/show/4003/previewing-amds-brazos-part-1-more-details-on-zacateontario-and-fusion/3 |website=www.anandtech.com |access-date=10 March 2024 |date=9 November 2010}} It is similar to Intel's DMI, and is based on PCI Express.{{cite web |last1=Hagedoorn |first1=Hilbert |title=AMD A6 3500 APU review (Page 4) |url=https://www.guru3d.com/review/amd-a6-3500-apu-review/page-4/ |website=www.guru3d.com |access-date=10 March 2024 |language=en |date=24 January 2012}} The Fusion Controller Hub is similar to the southbridge of earlier chipsets.