from the sys requirements in the support center.
Recommended:
- OS: Windows XP SP2 or newer, Mac OS X 10.5 or newer. 32 bits or 64 bits. (ZBrush 4 is a 32-bit application, but can use up to 4 GB of system RAM when run under a 64-bit OS.)
- CPU: For Windows: Pentium D or newer (or equivalent such as AMD Athlon 64 X2 or newer) with optional multithreading or hyperthreading capabilities. For Mac: Intel Macintosh.
- RAM: 2048MB recommended for working with multi-million-polys.
- Monitor: 1280x1024 monitor resolution set to 32 bits or Millions of Colors.
- Pen tablet: Wacom or Wacom compatible.