HyperTransport is a faster technology than traditional input/output bus technology that can connect different hardware devices. It requires less electricity, is narrow, and moves data in 32-bit packets. Each HyperTransport has two data lines and creates dedicated lines for each device.
HyperTransport is a technology designed to replace traditional input/output bus technology in computers. This technology is much faster than previous technologies. It is compatible with most microprocessors, regardless of which company made them.
An input/output bus or I/O bus is a data path that connects computer processors to each other or to coprocessors or other components. Until the invention of HyperTransport, the industry standard for connecting different hardware devices was the Peripheral Component Interconnect (PCI) bus. This technology is still used in many computers and can connect network cards or modems to your computer.
As computer technology has evolved, traditional I/O buses have not been able to keep up with evolving processor speeds. To address this problem, Advanced Micro Devices (AMD) developed HyperTransport technology in 1997. In 2001, seven other technology companies joined AMD to create the HyperTransport Consortium. The Consortium is a non-profit group that manages and licenses transport technology within the computing industry. Its membership consists of a variety of businesses and academic organizations.
HyperTransport has many advantages over older bus technologies. It requires less electricity, so users don’t have to worry as much about computer cooling. It’s also narrow, allowing for more flexibility. In the past bus manufacturers would simply enlarge the size of the buses to increase the speed. At some point, this became unworkable. The latest technology is able to move more data in less space so the bus can stay tight.
A PCI bus contains dedicated pins that send only specific types of information. This means that pins are not used if the type of data being sent is not the type they generally handle. With HyperTransport technology, all pins are capable of carrying all types of data, so all pins can be used whenever data is being sent. It moves data in 32-bit packets, which make the most of the bus width to send as much information as physically possible.
Each HyperTransport has two data lines. Each line can move 1.6 billion data transfers per second for each pair of pins. Because it can send more data on fewer pins, manufacturing costs are reduced.
The technology also creates dedicated lines for each device. With traditional bus technology, all devices share a bus. This can slow down processing if more than one device accesses the bus at a time. HyperTransport creates a dedicated line for each device, solving this problem.
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