Just a technical comparison between 10.4 and 10.5 (tiger and Leo) by a technician.
Tiger is the faster OS that apple produced its the best MacOSX for low powered Macs.
faster than 10 10.1 10.2 10.3 by far
till 10.4 every updated version of apple is faster than previous.
10.5 is another story thought..
most of its user interface is heavily depended on the graphic card GPU instead of CPU than 10.4 prefers.. 10.4 also uses GPU but not for the whole interface.
that gives an advantage for Leo on modern machines say DUAL G5 and up.
Because its frees up the cpu to compute other things..
but generaly in older machines G4 with not some extreme card fitted in it Tiger feels way faster.
Example: on my G4 that is a Dual G4 OC at 1.5 with 2mb L3 cache per prossesor with an X850XT 256mb GFX and 2x Stripe raid (1 on internal ata 100 and one on external raid case Firewire800) leo and tiger are about even.
leo is faster in some things and tiger is faster on some others, but as you see that is not a "common" mirror drive g4.
If you feel that 10.4 is slow then I suggest you to format the drive and do a clean installation of tiger without geeky add ons and the mini will realy fly that way.
