Mentor Graphics Calibre nmDRC Supports the AMD Opteron Processor

WILSONVILLE, Ore., July 27, 2006 – Mentor Graphics Corporation (Nasdaq: MENT) today announced that the Calibre{reg} nmDRC tool, Mentor’s next generation physical verification technology, is fully supported and qualified on the AMD Opteron™ processor. Calibre nmDRC demonstrated dramatic scalability improvement during benchmark tests, providing exceptional run time improvements for integrated circuit (IC) designs developed at advanced nanometer technologies.

Using AMD's most advanced 90nm microprocessor design as the verification test vehicle, AMD successfully conducted productivity benchmarks evaluating performance of the new Calibre nmDRC.

“We’ve seen astonishing results with the new Hyperscaling technology in Calibre nmDRC when combined with our high-performance AMD Opteron processor - providing run time improvements up to 350%,” said Ed Gasiorowski, Director of Global Verticals, AMD. “The synthesis of these advanced capabilities create a paradigm shift - dramatically reducing the time to market for new IC designs.”

Hyperscaling technology dramatically reduces run times through advanced multi-threading methods, improves scalability on existing hardware, and efficiently uses both single and dual-core CPUs. Hyperscaling technology provides great design computing environment flexibility for customers as it accelerates IC design physical verification using shared memory processor systems or distributed rack systems. Hyperscaling provides the fastest single CPU and multi-CPU performance to verify blocks in seconds and full chips in hours. Hyperscaling improves productivity for designers working on mature designs on the most advanced 90nm designs.

“AMD continues to lead the way developing microprocessors that deliver excellent productivity and flexibility - meeting the needs of the ever-challenging nanometer era world,” said Joe Sawicki, vice president and general manager of Mentor Graphics design-to-silicon division. “Calibre has been a partner in that process, giving both designers and manufacturers the capabilities they need to ensure increased productivity and successful time-to-market.”

About Mentor Graphics
Mentor Graphics Corporation (Nasdaq: MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world’s most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of over $725 million and employs approximately 4,050 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777. World Wide Web site: http://www.mentor.com/.

Mentor Graphics and Calibre are registered trademarks of Mentor Graphics Corporation. AMD, the AMD Arrow logo, AMD Opteron, and combinations thereof, are trademarks of Advanced Micro Devices, Inc. All other company or product names are the registered trademarks or trademarks of their respective owners.

For more information, please contact:
Carole Thurman
Mentor Graphics
503.685.4716
carole_thurman@mentor.com

Sonia Harrison
Mentor Graphics
503.685.1165
sonia_harrison@mentor.com