Hello, I have a MacBook Pro 2.4 Core 2 Duo with 2GB 667 DD2 SDRAM and I am running Mac OS X 10.5.2 and using UnRarX 2.2.
I find it kinda slow for this processor and system when it unrars files of 2GB or 4GB in size.
Thanks, I hope this helps.
Ryan
Toronto, Ontario