Other notable features included:
Report: Availability and Installation of ArchiCAD 16 (32-bit)
32-bit systems can only utilize a maximum of 4GB of RAM , which significantly limits the size of the architectural models you can handle.
Around the time Archicad 16 was released, the computer industry was in the middle of a massive transition from 32-bit to 64-bit operating systems.
The query contains an interesting variable: the number "12".