Rambus Acquires Digital Core IP from GDA Technologies

Digital interface IP complements Rambus's high-speed interface IP products

LOS ALTOS and SAN JOSE, Calif. - April 21, 2005 –   Rambus Inc. (Nasdaq:RMBS), one of the world's premier technology licensing companies specializing in high-speed chip interfaces, along with GDA Technologies, a leading Electronic Design Services (EDS) solution provider, today announced that Rambus has acquired digital core intellectual property (IP) assets from GDA Technologies.

This multi-faceted deal provides Rambus with digital controller IP to complement its existing line of high-speed interface physical (PHY) layer products. This agreement enables Rambus to deliver complete physical and digital layer IP for high-speed interface designs. Specifically, Rambus is acquiring digital core IP compatible with PCI Express, Ethernet, SPI-4, USB and SATA protocols, as well as products that are currently in development and will be made available based on customer demand. Rambus will be extending offers to a number of GDA Technologies employees, both in San Jose, California and Bangalore, India that are affiliated with the design and development of these digital IP cores.

"By adding these IP cores from GDA to our existing line of high-speed interface technologies, we are very well positioned to provide a broad portfolio of easy to use, customer proven and tightly integrated solutions to our customer base," said Samir Patel, vice president of engineering at Rambus. "In addition, a team of digital IP developers in India and the U.S. will join Rambus. Prakash Bare, vice president of GDA's IP business unit, will also move to Rambus as general manager of the Digital IP business. This enables us to accelerate the expansion of our design center in Bangalore, India and gives us an additional ability to attract top engineering talent in that region."

As part of this agreement, GDA becomes a reseller of these digital controllers and will offer this IP along with its IP and IP-enabled services. Additionally, GDA may use the controllers in custom designs through a technology licensing agreement. GDA Technologies will continue to provide Electronic Design Services, Semiconductor IP, Verification IP and value-added IP-enabled services.

"This agreement enables us to focus and scale our business, while Rambus can focus on delivering a strong product roadmap of integrated controller and PHY solutions. The combination of Rambus's physical layer expertise and products with GDA's digital core IP provide chip designers a complete interface solution," said A.G. Karunakaran, President of GDA Technologies. "We are very excited to partner with a larger IP company that is focused on providing the industry with high-speed interface designs that solve its customers' challenges."

For more information about GDA Technologies services, go to www.gdatech.com. Additional information on the Rambus family of high-speed interface solutions can be found at www.rambus.com.

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's 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.

About GDA Technologies, Inc.

GDA Technologies Inc. is a leading Electronic Design Services (EDS) and Silicon Intellectual Property (SIP) solution provider for the embedded, networking, and consumer electronics markets. GDA specializes in designing ASICs, FPGAs, IPs, boards, SoCs, software and complete systems from concept to product. GDA has successfully developed products in the areas of desktop, server, and embedded computing, digital audio and video applications, Internet appliances, and voice and data networking applications. In the IP front, GDA has been the leading solution provider for fast interconnect technologies such as HyperTransport, PCIExpress, Ethernet and Advanced Switching with many licenses sold in compute, networking and communication markets. GDA is headquartered in San Jose, California, and has satellite design centers in Boston, Sacramento, Singapore, Chennai and Bangalore, India. The GDA web site is www.gdatech.com.