Windows: PIII 800 MHZ, 256 MB RAM, GeForce 2 MX, ATI Radeon 7500 ( 32 MB VRAM ), Windows 98/98SE/2000/XP. Macintosh: G4 800 MHZ, 384 MB RAM, GeForce 2 MX, ATI Radeon 7500 ( 32 MB VRAM ) Mac OS X 10.2.6