From the 'Read Me First.htm' file:
SYSTEM REQUIREMENTS
Operating System:
Windows XP Professional
Windows XP Professional x64 Edition*
Macintosh® OS X 10.3
Macintosh® OS X 10.4
CPU:
Intel® Pentium 4, Intel® Centrino, or compatible
Power Macintosh® G4 1 GHz required
Power Macintosh® G5 series recommended
RAM:
1 GB of RAM is required
more than 1GB is recommended for complex models
Hard Drive:
Minimum of 500 MB free hard disk space is required for a full installation.
Additional 2 GB is required for work with complex projects and 3D visualization.
Display:
Minimum resolution: 1024x768,
Recommended resolution: 1280x1024
Standard Open GL graphic card with on-board video memory of 64 MB is required.
On-board video memory of 128 MB or more is recommended.
To find compatibility data for Open GL VGA-cards, please visit the following website:
http://archicad-talk.graphisoft.com/compatibility.php
Note for Windows users: QuickTime 6.5 or later and Java 2v1.4.2 or later are required to run ArchiCAD.
ArchiCAD installer will automatically install Java 2v1.5 and QuickTime 7 if they are not present on your computer.
* On Windows XP Professional x64 Edition the PDF output is not available.
To learn more about XP 64-bit, please visit:
http://archicadwiki.com/Windows_XP_64-bit_edition
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AC 28 USA and earlier • macOS Sonoma 14.7.1, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB