Tomb Raider: Underworld - Mac These minimumsystem requirements are Provisional - please check the publisher's website for final system requirements before purchasing. Processor: 1.8GhzrunningMac OS X 10.6.8 or later RAM: 3.0GB,Free Space: 8.0GB Optical Drive: DVD. Accessories: Keyboard & Mouse Graphics: 128MB VRAM (The following graphics cards are NOT supported: ATI X1xxx series, NVIDIA 7xxx series and Intel GMA series).