ATI Invites Gamers to Tweak Their PCs With the PROs and Get a Sneak Peek at the World’s First 512MB Gaming Card

ATI sponsors the Ultimate LAN at Texas Gaming Festival

MARKHAM, ON February 23, 2005 Gamers from around the world are invited to join ATI Technologies Inc. (TSX: ATY, NASDAQ: ATYT) and its marketing partners at the Ultimate LAN, held in association with the Texas Gaming Festival in Dallas, February 25th to 27th. In addition to offering gamers three days of top-notch gaming, the event will include an overclocking demonstration and a PC modding event. Attendees will get the opportunity to preview the world’s first 512MB gaming card and one lucky gamer will even get to take one home.

“Participating in events like this gives us the opportunity to find out what gamers want and need for competitive gaming,” said Rich Heye, Vice President and GM, Desktop Discrete Products, ATI. “And to say thanks for supporting ATI, we are giving attendees at this event an opportunity to check out the world’s first 512MB gaming cards before we send them out to our software partners for development of next-generation games.”

In addition, world champion overclockers will test their mettle and their silicon to set new world records. Top overclockers Eric Kronies, Charles Wirth and Sami Makinen will also take a break from overclocking their own systems to answer attendees’ system-tweaking questions and offer tips for overclocking PCs for ultimate performance.

Attendees will vote on whose PC at the event is most in need of an overhaul. The lucky winner will have his or her PC rebuilt by modding experts using the latest technology from ATI and its partners.

And as is the norm at ATI-sponsored LAN parties, participants can expect lots of giveaways and prizes, including high-end desktop and notebook PCs powered by ATI hardware. Other sponsors of the event include ABIT, AMD, ArenaNet, ATARI, Corsair, Gigabyte, Kingston, LG, NCSoft, OCZ, Running with Scissors, Sapphire and UBISOFT.

For more information or to register, please visit ATI at www.ati.com/gitg or the Texas Gaming Festival at www.txgf.com.

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About ATI Technologies

ATI Technologies Inc. is a 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 processor unit

(GPU) provider and is dedicated to deliver 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 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).