Truth is, Archicad 9 runs fine (except for final rendering) on an old 400MHz Powerbook G3 Firewire with 700MB RAM and a built-in ATI Rage 128 graphics card! (We've tested it) And on my Dual 533 G4 with 1GB of RAM and ATI Radeon 32MBit feels swift, except for some renderings and large Plotmaker layout book updates. I feel no hurry to upgrade, although I will eventually. If I can stand it, i'll wait for the G5 powerbooks.
AC4.1-AC26SWE; MacOS13.5.1; MP5,1+MBP16,1