MARKHAM, ON – June 9, 2005 – ATI Technologies Inc., (TSX: ATY, NASDAQ:ATYT), a leader in graphics and media processors, today announced the release of a major upgrade to CatalystTM, ATI’s comprehensive software suite that enhances the company’s portfolio of high-performance graphics
processors. The publicly available Catalyst 5.6 represents a number of
firsts in graphics software including a real-time video preview with on-the-fly adjustments, monthly software upgrades for notebook PCs and plug-and-play HDTV connectivity. Addressing a range of market segments and user needs, Catalyst 5.6 delivers on a commitment to offer certified software with the highest levels of stability, performance and ease of use.

Mobile Catalyst
Power notebook users have long lacked the ability to update drivers at the same pace as their desktop counterparts. With the release of Catalyst Mobility notebook users will now have access to monthly driver updates, ensuring the best levels of game performance and application compatibility.
Catalyst Mobility delivers the same full feature-set as desktop, along with all of ATI’s mobile-specific power management options. The initial launch of Catalyst Mobility will support Mobility Radeon® X700 and Mobility Radeon ® X800 with more products to follow in the coming months. Catalyst Mobility will be supported by industry leading ODMs and system builders, including Alienware, Arima, Clevo, Eurocom, Falcon Northwest, Mitac, rockdirect, Uniwill and Voodoo PC.

Video Control Redefined
ATI has long been a pioneer and leader in video on the PC and with the release of Catalyst 5.6 this is taken to the next level. Now users can make simplified on-the-fly adjustments to their video quality and see the results instantly through a real-time video preview. The novice user benefits from a set up wizard that automatically detects and optimizes for the best video quality. Enthusiast users can access more advanced setup options to easily control features like de-interlacing, hue and gamma. In addition HDTV users have an improved user experience with a simplified
connection wizard for plug-and-play HD connectivity. Video playback
efficiency also sees a noticeable improvement with the addition of WMV9 acceleration.

High Performance Gaming
Gamers also reap substantial benefits from Catalyst 5.6 with sizable performance improvements in some of today’s most popular games including Doom 3, Chronicles of Riddick and Halo.

Additional benefits in Catalyst 5.6 include All-in-Wonder® support for Windows® MCE 2005 and a new Linux installer for simpler and more intuitive driver installation for open source uses.

You can download the ATI Catalyst Radeon 5.6 for Windows XP/2000/Media Center here.