The system requirements for VF2 are:

Windows System Requirements

Windows XP, Vista, Windows 7, Windows 8
1024x768 or larger display
512MB of RAM (1 GB for Vista or later)
700 MHz Processor (1 GHz for Vista or later)

Note that the game will run more slowly on older computers with slower processor speeds and limited memory.

I will check on the Mac System Requirements and update this post. We will also update the game pages as soon as we can.