With 300+ new features, Leopard is the most impressive Mac OS X version yet. Watch the Guided Tour
Grab a front-row seat for a walkthrough of the top attractions in Mac OS X Leopard. See how the biggest system update in Mac history can help you love your Mac even more.
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http://www.apple.com/macosx/guidedtour/Technical Specifications General requirements
Mac computer with an Intel, PowerPC G5, or PowerPC G4 (867MHz or faster) processor
512MB of memory
DVD drive for installation
9GB of available disk space
Some features require a compatible Internet service provider; fees may apply.
Some features require Apple's .Mac service; fees apply.
Feature-specific requirements
Time Machine requires an additional hard drive (sold separately).
Photo Booth requires an iSight camera (built-in or external), USB video class (UVC) camera, or FireWire DV camcorder; and an Intel or PowerPC G5 processor. Backdrop effects require an Intel Core Duo or faster processor. Backdrop effects when using a DV camcorder require fixed focus, exposure, and white balance.
Boot Camp requires a Mac with an Intel processor and Windows XP Service Pack 2 or Windows Vista (sold separately).
Screen sharing in iChat and in the Finder requires a 128-Kbps Internet connection (300-Kbps recommended).
Front Row requires a Mac with built-in IR and an Apple Remote.
DVD Player requires a 1.6GHz processor or faster for improved de-interlacing.
iChat requirements
Audio chats require a microphone and a 56-Kbps Internet connection.
Video chats require an iSight camera (built-in or external), USB video class (UVC) camera, or FireWire DV camcorder; and 128-Kbps upstream and downstream Internet connection.
Photo Booth and backdrop effects require an Intel Core Duo or faster processor.
Backdrop effects when using a DV camcorder require fixed focus, exposure, and white balance.
Some iChat features offer better performance and quality with higher system capabilities.
More details
Developer tools require 1GB of memory and an additional 3GB of available disk space.
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