All Macs In-Depth Tests
Extension Slowdown

I recieved this data from a visitor to the pages (original author unknown) and thought that those who understand what "ticks for calls to Next Event" might mean in terms of performance would find them interesting. Overall I am not sure what window this gives on real world performance. For example MacBench does not show such a slowdown when using RamDoubler (or other extensions for that matter).