The Intel version is way heavier than the PowerPC one: there's more to update on the Intel build (e.g. Rosetta).
The 10.4.8 Update is recommended for all users and includes general operating system fixes, as well as specific fixes for the following applications and technologies:
- connecting to wireless networks using the EAP-FAST protocol
- Apple USB modem reliability
- using OpenType fonts in Microsoft Word
- compatibility with 3rd party USB hubs
- scanner performance
- RAW camera support
- printing documents with Asian language names
- performance of the Translation widget
- broadband network performance
- security updates
For detailed information on this Update, please visit this website: http://www.info.apple.com/kbnum/n304200.
For detailed information on Security Updates, please visit this website: http://www.info.apple.com/kbnum/n61798.
