Minimum Spec Details for The Sims 3
FOR WINDOWS XP
* 2.0 GHz P4 processor or equivalent
* 1 GB RAM
* A 128 MB Video Card with support for Pixel Shader 2.0
* The latest version of DirectX 9.0c
* Microsoft Windows XP Service Pack 2
* At least 6.1 GB of hard drive space with at least 1 GB of additional space for custom content and saved games

FOR WINDOWS VISTA
* 2.4 GHz P4 processor or equivalent
* 1.5 GB RAM
* A 128 MB Video Card with support for Pixel Shader 2.0
* Microsoft Windows Vista Service Pack 1
* At least 6.1 GB of hard drive space with at least 1 GB of additional space for custom content and saved games


อ้างอิง: http://thesims3.ea.com/view/pages/feature6.jsp
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