Mac OS X 10.9 Mavericks
Mac OS X Mountain Lion 10.8.4 or later
Mac OS X 10.7.5 Lion or later
Mac OS X Snow Leopard 10.6.8 or later
Intel-based Mac with Intel Core 2 Duo processor (Intel Core Solo and Core Duo processors are no longer supported)
Minimum 2GB of memory, 4GB of memory is recommended
At least 700MB of disk space on the boot volume (Macintosh HD) for Parallels Desktop installation plus space to allocate to your virtual machine.