Rambus Signs Patent License Agreement with AMD

Agreement for $75M over five years covers all chips except memory

LOS ALTOS, California, United States - January 3, 2006 --  Rambus Inc. (Nasdaq:RMBS), one of the world’s premier technology licensing companies today announced the signing of a five-year patent license agreement with Advanced Micro Devices, Inc. (NYSE:AMD) which grants AMD a license to Rambus patents. The license includes Rambus patents used in the design of DDR2, DDR3, FB-DIMM, PCI Express* and XDR™ controllers as well as other current and future high-speed memory and logic controller interfaces.

The five-year term of the agreement carries the possibility of renewal or extension. Specific terms of the agreement are confidential.

“The license of our patent portfolio with AMD’s demonstrated innovation in the microprocessor market is highly compelling,” said Harold Hughes, chief executive officer at Rambus. “We are very pleased to start the new year with an agreement that reflects a new approach for pricing our controller licenses and to continue to provide the market with innovative high-speed chip interface technologies.”

Since its founding in 1990, Rambus has focused on advancing electronic system performance through innovations in logic and memory interfaces, controller architectures, and system design. The result is a broad portfolio of innovations and patents that enables semiconductor manufacturers and system designers to achieve ever-increasing levels of functionality and performance, to lower system costs, to mitigate risk with silicon-proven designs, and to reduce time to market. For more information on Rambus’ patent portfolio, please visit www.rambus.com/products/innovationslicensing/.

About Rambus Inc.
Rambus is one of the world’s premier technology licensing companies specializing in the invention and design of high-speed chip interfaces. Since its founding in 1990, the company’s innovations, breakthrough technologies and integration expertise have helped industry-leading chip and system companies solve their most challenging and complex I/O problems and bring their products to market. Rambus’ interface solutions can be found in numerous computing, consumer, and communications products and applications. Rambus is headquartered in Los Altos, California, with regional offices in Chapel Hill, North Carolina; Bangalore, India; Taipei, Taiwan; and Tokyo, Japan. Additional information is available at www.rambus.com.