[Dave Baumann]

ATI's Radeon'R' Xpress 200M Drives HP's New Thin-and-Light AMD Turion'TM' 64 Mobile Technology-Based Commercial Notebooks
Radeon(R) Xpress 200M Delivers Powerful Graphics Performance and Long Battery Life to HP Compaq nx6125 Notebook PCs

MARKHAM, Ontario - June 22, 2005 - ATI Technologies Inc. (TSX:ATY - News; NASDAQ:ATYT - News), the global leader for notebook PC graphics, today announced that Radeon® Xpress 200M is the chipset platform in HP's new line of AMD Turion(TM) 64 mobile technology-based thin-and-light commercial notebooks - the HP Compaq nx6125 notebook PC.

The combination of Radeon Xpress mobile platform technology and innovative AMD Turion 64 mobile processor technology, developed specifically for notebook PCs, delivers powerful graphics performance and long battery life in an attractive thin-and-light mobile design. Supporting today's most advanced applications and operating systems for maximum investment protection, the HP Compaq nx6125 offers a flexible and stable high-performance mobile solution for small and large enterprises alike.

Backed by Radeon Xpress 200M the industry's first DirectX 9 chipset for notebooks, along with ATI's ground-breaking PowerPlay 5.0 power management technology, the nx6125 is a visually-rich multimedia support center for today's most sophisticated mobile professionals. The HP Compaq nx6125 leads the industry for more security features in a notebook PC and is affordably priced.

"Today's mainstream commercial notebooks must deliver performance and long battery life," said Phil Eisler, Senior Vice President and General Manager, Mobile and Chipset Business Unit, ATI Technologies, Inc. "The industry-leading Radeon Xpress graphics enables the HP Compaq nx6125 to deliver the best performance to battery life ratio of any AMD Turion 64-based notebook to raise the bar for the commercial notebook."

"HP is focused on delivering superior quality professional grade notebooks designed to empower businesses," said Dan Forlenza, vice president, worldwide commercial notebook, Personal Systems Group, HP. "By incorporating ATI's industry-leading Radeon Xpress graphics technology, we can provide a visually-rich user experience, supporting the most advanced multimedia applications available and maximize the lifespan of our systems."

"As HP's exciting thin-and-light AMD 64 technology-based notebooks become available, it is clear that our work with industry leaders like ATI is helping drive mobile technology to the next level of power and portability on an open-standard platform," said Marty Seyer, corporate vice president and general manager, Microprocessor Solutions Sector, AMD (NYSE: AMD - News). "The feature-rich Radeon Xpress 200 chipset fully supports AMD Turion 64 mobile technology delivering cutting-edge graphics performance for demanding 32- and 64-bit business and consumer applications."

About ATI Technologies
ATI Technologies Inc. is the world leader in the design and manufacture of innovative 3D graphics and digital media silicon solutions. An industry pioneer since 1985, ATI is the world's foremost graphics processing 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 device markets. With 2004 revenues of approximately US $2 billion, ATI has more than 2,700 employees in the Americas, Europe and Asia. ATI common shares trade on NASDAQ (ATYT) and the Toronto Stock Exchange (ATY).