Radeon® Xpress 200 provides broad support for the AMD Athlon(tm) 64 X2 Dual-Core Processors

MARKHAM, ON/ Munich, Germany - June 1, 2005 - ATI Technologies Inc. (TSX: ATY, NASDAQ:ATYT) today announced broad platform support for the new AMD Athlon(tm) 64 X2 dual-core processor with its Radeon® Xpress 200 platform technology. Built from the ground up with flexibility and scalability in mind, Radeon Xpress 200 offers full support for AMD Athlon 64 X2 dual-core processors, lending itself to maximum end-user investment protection. With the broadest portfolio of AMD DirectX 9 PCI Express chipsets, Radeon Xpress 200 addresses the needs of every audience - from entry-level to enthusiast-class.

Additionally, ATI's recently launched dual-slot Radeon Xpress 200 CrossFire(tm) Edition platform supports both dual-GPU and dual-core configurations for unprecedented performance and blistering-fast visuals; making it the ideal solution for gaming and multimedia enthusiasts alike.

"AMD's leadership in dual-core processing, along with ATI's PCI Express chipset support, Radeon graphics and now with its dual-GPU CrossFire technology support, can offer customers unprecedented power and performance," said Bob Brewer, corporate vice president, Desktop Marketing Segment, Microprocessor Solutions Sector, AMD (NYSE: AMD). "As the PC becomes an important part of today's homes the AMD Athlon 64 X2 dual-core processors provide the backbone for incredibly compelling visual experiences, system performance and functionality,"

"As the established platform-of-choice for the enthusiast, AMD has proven its commitment to technical innovation and is a key driving force in the market," said Peter Edinger, Vice President EMEA and Managing Director ATI Technologies (Europe) GmbH. "ATI has worked closely with AMD to support this innovation and bring these technologies to market to serve as the foundation for next-generation multimedia, gaming and performance."

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).