This game will not run on Mac systems with processor PowerPC (G3/G4/G5) or video cards with integrated GMA 950 series.
Intel ® Graphics Media Accelerator (GMA) GMA 3-Series.ATI X1600 or Nvidia 7300 GT with 128 MB of video RAM or Intel Integrated GMA X3100.
The NVIDIA GeForce FX series is unsupported under Vista. Please note that attempting to play the game using video hardware that isn’t listed above may result in reduced performance, graphical issues or cause the game to not run at all. Integrated chipsets such as the ATI Xpress and the NVIDIA TurboCache variants will have low settings selected, but should run satisfactorily. Intel integrated chipsets featuring underclocked parts will not perform adequately. Standalone cards that are installed in vanilla PCI slots (not PCIe or PCIx or AGP), such as some GeForce FX variants, will perform poorly. Laptop versions of these chipsets may work, but may run comparatively slower.
You’ll need 300MB of free space if you have a PC and 400MB of free space if you are using a Mac. The only changed requirement for the new stuff pack is the harddrive space. If you are currently running The Sims 3 on your computer, you have no reason to worry as you’ll be able to run The Sims 3 High End Loft Stuff.