Press Release - 2003

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MARKHAM, Ontario – ATI Technologies Inc. (TSX: ATY, NASDAQ: ATYT) today announced that Valve®, a leading game developer, has named ATI as the preferred graphics card partner for its upcoming game Half-Life® 2. As a part of this agreement with Valve, ATI customers will get the full Half-Life 2 game free¹ with the purchase of select Radeon® products.

Valve’s Half-Life 2 is among the most anticipated games in history and caught the attention of the industry and gamers alike winning Best of Show at this year’s E3. It is the first game to make full use of Microsoft's DirectX® 9 programming interface by taking advantage of features like high dynamic range lighting, bump mapped characters, soft shadows and improved full scene anti-aliasing. As such, it provides an excellent demonstration of the full capabilities of ATI's DirectX 9 hardware.

“ATI’s DirectX 9 graphics architecture is the best in the industry,” said Rick Bergman, Senior Vice President, Marketing, General Manager, Desktop, ATI Technologies Inc. “We are thrilled to be able to offer Half-Life 2 as an example of the unbelievably realistic gaming experience that is now possible thanks to Radeon graphics.”

Built from the ground up with new shader-intensive games in mind, ATI’s DirectX 9 hardware, like the Radeon® 9800 XT and Radeon® 9600 XT, has proven to be ideal development and gaming platforms for Half-Life 2.

“ATI has been a great partner on the engineering front. Our work with ATI has enabled DirectX 9 functionality that wouldn’t have been possible with any other company,” said Gabe Newell, Founder and Managing Director, Valve. “ATI’s hardware gives our customers the best experience with our software. So we’ve chosen to extend our relationship to include marketing initiatives that will showcase both Half-Life 2 and Radeon products.”

A part of ATI’s Get in the Game initiative, this co-marketing agreement with Valve is an extension of an already robust relationship. ATI works closely with game developers and publishers worldwide to ensure that gamers can enjoy the best experience possible with ATI’s visual processors and today’s hot new games

¹ Shipping, handling and applicable taxes or customs charges are not included. Charges vary depending on purchaser's mailing address and method of delivery (i.e.; download vs. land delivery). Offer only available while supplies last.

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About ATI Technologies Inc.
ATI Technologies Inc. is a world leader in the design and manufacture of innovative 3-D graphics and digital media silicon solutions. An industry pioneer since 1985, ATI is the world’s foremost visual processor unit (GPU) provider and is dedicated to delivering leading-edge performance solutions for the full range of PC and Mac desktop and notebook platforms, workstation, set-top and digital television, game console, and handheld markets. With 2002 revenues in excess of U.S. $1 billion, ATI has more than 2,000 employees in the Americas, Europe and Asia. ATI common shares trade on NASDAQ (ATYT) and the Toronto Stock Exchange (ATY).

Contact Information

For media or industry analyst support, visit our Web site at http://www.ati.com

For Information:
Patricia Mikula, Public Relations Manager, Desktop and Workstation Products, ATI Technologies Inc., at (905) 882-2600, Ext. 8809 or pmikula@ati.com

Other ATI Contacts:
Tenille Cuthbertson, Consultant, Porter Novelli Canada, at (416) 422-7163 or tenille.cuthbertson@porternovelli.com

For investor relations support, please contact:
Janet Craig, Director, Investor Relations, ATI Technologies Inc., at (905) 882-2600, Ext. 2631 or janet@ati.com