MIPS64 Architecture Powers New Superscalar XLP Processor from RMI Corporation

Processor Maintains MIPS’ High Performance Tradition at Speeds beyond 2.0 GHz

MOUNTAIN VIEW, Calif. - May 19, 2009 - MIPS Technologies, Inc. (NasdaqGS: MIPS), a leading provider of industry-standard processor architectures and cores for home entertainment, communications, networking and portable multimedia markets, today announced that its high-performance MIPS64® architecture is powering the new XLPTM Processor from RMI Corporation. The XLP Processor, introduced separately by RMI today, is reportedly the highest performance per watt multi-core processor in the industry based on the MIPS64® instruction set. RMI, a leading provider of high-performance processors for communication and media rich applications, announced that the XLP Processor uses a MIPS64 compatible superscalar, simultaneously multi-threaded processor core with out-of-order processing capabilities.

Many next-generation applications, including security appliances, L4-L7 switching, storage networking, 3G/4G wireless, small business networks and others require extremely high levels of processor performance. Performing at speeds greater than 2.0 GHz and providing a 3x performance per watt improvement over the previous generation processor, the XLP Processor is targeted at OEMs developing these next-generation products. The XLP Processor core architecture is optimized for both data plane and control plane processing, and is developed on a 40nm process technology.

"With the MIPS architecture, we not only get an acknowledged performance advantage, but also scalability, flexibility, functionality, and a robust ecosystem of software and tools," said Behrooz Abdi, president and CEO, RMI Corporation. "Our new XLP Processor enables a broad set of application-specific features for a range of high-performance applications including those in the storage, networking, telecom, wireless and enterprise markets. The XLP Processor has the most advanced architecture and is the highest performing product family in the embedded market."

"RMI continues to push the envelope for the industry in terms of performance in its processors, and we are pleased to acknowledge this latest milestone in our long-term relationship," said John Bourgoin, president and CEO, MIPS Technologies. "It is exciting to be an integral part of the development of the XLP Processor. MIPS Technologies has long been known as the industry's high-performance leader, and this announcement from RMI continues that legacy. We look forward to continuing to partner with RMI as it brings new generations of groundbreaking MIPS-BasedTM products to market."

About MIPS Technologies, Inc.

MIPS Technologies, Inc. (NasdaqGS: MIPS) is a leading provider of industry-standard processor architectures and cores that power some of the world's most popular products for the home entertainment, communications, networking and portable multimedia markets. These include broadband devices from Linksys, DTVs and digital consumer devices from Sony, DVD recordable devices from Pioneer, digital set-top boxes from Motorola, network routers from Cisco, 32-bit microcontrollers from Microchip Technology and laser printers from Hewlett-Packard. Founded in 1998, MIPS Technologies is headquartered in Mountain View, California, with offices worldwide. For more information, contact (650) 567-5000 or visit www.mips.com.

About RMI

RMI Corporation is a fabless semiconductor company providing High-Performance Super System-on-a-Chip (SuperSoCTM) Processor solutions for the Infrastructure, Enterprise, and Consumer Media markets. Applications include Wireless, Networking Security, Thin Clients, and Connected Multi-Media. RMI offers a broad platform of advanced MIPS-compatible processor solutions with both 32/64-bit architectures supporting frequencies from 300MHz to greater than 2.4 GHz. RMI is headquartered in Cupertino, CA with branch and subsidiary operations in Texas, France, India, Korea, Japan, Taiwan, Hong Kong and China. More information about RMI can be found on the company's website at www.RMICorp.com.