to directly connect the FPGA devices to the other CPU socket and both provide memory controllers to access memory on the motherboard. An accelerator card for offloading antivirus search was another example. Related projects Torrenza was closely (though not exclusively) identified with HyperTransport technology promoted by the HyperTransport Consortium. AMD is a supporter and partner of the OpenFPGA Consortium. Technology elements of Torrenza were related to the AMD Fusion, later Accelerated Processing Unit, project, which targets the integration of graphics processing units (or other coprocessing functions) and CPU cores onto one chip. As a programmatic distinction, Torrenza refers to external acceleration technology (including graphics processing units in PCIe slots), while Fusion refers to integrated acceleration technology. It was rumored in 2007 that the future IBM POWER7 processors would be socket compatible with Opteron processors. The IBM Roadrunner supercomputer connected thousands of Opteron cores to almost as many Cell Broadband Engines in an effort to reach 1 petaflop of processing power. However, it is not clear if this system configuration should be considered an example of a coprocessing architecture because the Opteron and Cell processors run independent operating systems and communicate using software-based message-passing protocols. Delivered in mid-2008, AMD was not expected to emphasize the Torrenza initiative from about that time. It was not mentioned in a 2009 news release about the Roadrunner, for example. See also AMD FireStream – product line targeting stream processing and GPGPU List of AMD Opteron microprocessors List of AMD processors with 3D graphics References External links PCWatch: The era of co-processors, AMD's "Torrenza" initiative (Machine Translation using Google) DailyTech report on the official announcement of Torrenza In-Stat report. Retrieved June 19, 2007. AMD Coprocessors