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Cyrix Releases Details of Next-Generation Integrated Processor
"MXi" first processor to integrate 2D and 3D graphics, consumer-quality DVD

Richardson, Texas - October 15, 1997 - Cyrix Corporation (NASDAQ:CYRX) today unveiled the architectural details of its next-generation integrated processor, code named MXi, at Microprocessor Forum '97. MXi will deliver high-performance 2D and 3D graphics, as well as the industry's highest memory bandwidth, in an affordable solution for the mainstream desktop.

Featuring the next-generation Cayenne core, revealed yesterday, MXi is strengthened by a dual-issue, fully pipelined floating point and MMXT unit with 15 new multimedia floating point instructions. The processor also integrates the latest system technology, including SDRAM control, AGP and consumer-quality DVD playback, onto the processor. With its low memory latency and industry-leading memory bandwidth - greater than 2GBytes per second - the MXi is expected to significantly outperform competing non-integrated AGP solutions.

"MXi will deliver a quantum leap in 3D, DVD and multimedia performance in an affordable, two-chip solution - just add memory," said Steve Tobak, vice president of corporate and channel marketing, Cyrix. "This chip will also provide the industry's highest memory bandwidth, resulting in AGP performance twice that of the Pentium™ II processor."

3D Graphics Features and Performance
MXi will incorporate a complete list of state-of-the-art 3D graphics features, including bi-linear and tri-linear filtering, Alpha blending/fog, Gouraud shading, MIP mapping and Z buffering. Additionally, the MXi will be D3D® and OpenGL® compliant for mainstream software compatibility.

With respect to performance, MXi has a 3D rendering capability of greater than 2 million triangles per second with a fill rate of 120 million pixels per second. In summary, MXi will deliver integrated, high-performance 3D processing with all the features of much more expensive multi-chip solutions.

Additional Features, Data
MXi is based on the Cayenne core, featuring a dual-issue floating point and MMX instruction unit, 64KByte L1 cache, and an enhanced sixth-generation integer unit. MXi will initially be manufactured using a .25-micron, 5-layer metal process. This includes a C4 process for flip chip assembly. As a result, the die size is expected to be about 90mm2. With production slated for 2H98, MXi will be available in speeds rated at PR300 to PR400.

Cyrix Corporation
Cyrix Corporation, (NASDAQ: CYRIX) headquartered in Richardson, Texas, is a leading supplier of innovative microprocessor-based solutions that set new standards for the personal computer market. The company delivers compelling value and quality to its customers, the manufacturers of personal computer products, by combining industry-leading design with world class manufacturing. Cyrix's customers include Apple, Compaq, CTX, Cybermax, FIC, Fujitsu, IBM, Trigem and Tulip. For more information visit Cyrix's web site at www.cyrix.com.

Any forward-looking statements in the above release involve risks and uncertainties which could cause actual results to differ from the present anticipated results. These risks and uncertainties include but are not limited to the following: market demand and acceptance of our microprocessor products; the impact of changing economic conditions; product introductions; the verification of our microprocessor's compatibility with industry-standard hardware and software; the maintenance of sufficient cash flow; reliance on third-parties; the impact of market peers and their products as well as risks concerning future technology; and others detailed in the Company's Securities and Exchange Commission filings. These filings can be obtained by contacting Cyrix Investor Relations. Cyrix is a registered trademark and 6x86MX is a trademark of Cyrix Corporation. Pentium is a registered trademark and MMX is a trademark of Intel Corporation. All other brand or product names are trademarks or registered trademarks of their respective holders. OpenGL is a registered trademark of Silicon Graphics, Inc. D3D is a registered trademark of Microsoft Corporation.

© 1997 by Cyrix Corporation, U.S.A.

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