32-bit systems are typically limited to 4 GB of RAM. The 64-bit version allows the software to utilize much larger amounts of system memory, which is essential for handling complex 3D models and high-density 2D drawings.
Modern operating systems like Windows 10 and 11 are optimized for 64-bit applications, ensuring better stability and integration with current hardware. System Requirements for 2008-era CAD CADPower - BricsCAD PRO, LITE, Mechanical and BIM Cadpower 2008 64bit