Infinity Fabric

Updated: 01/31/2019 by Computer Hope

Infinity Fabric is a system bus technology used by AMD as part of their Ryzen, Threadripper, EPYC, and Vega processor lines. It is a HyperTransport technology, providing high data transport speeds between CPUs (central processing units), GPUs, and RAM (random-access memory). It was announced in December 2016, and became available to consumers with the first Ryzen processors in February 2017.

Diagram: Infinity fabric bus of an EPYC 32-core CPU.

The data transfer rate of the first Infinity Fabric implementations is 30 GB/s, and AMD has stated that it will scale to a maximum rate of 512 GB/s in future product lines.

CPU terms, HyperTransport, System bus