WINDOWS XP

- Windows XP (Service Pack 2)
- 2.0 GHz P4 processor or equivalent
- 1 GB RAM
- At least 6.5 GB of hard drive space
- 128 MB Video Card with support for Pixel Shader 2.0

WINDOWS VISTA

- Windows Vista (Service Pack 1)
- 2.4 GHz P4 processor or equivalent
- 1.5 GB RAM
- At least 6.5 GB of hard drive space
- 128 MB Video Card with support for Pixel Shader 2.0

For computers using built-in graphics chipsets, the game requires at least:

Intel Integrated Chipset, GMA X3000 or above
2.6 GHz Pentium D CPU, or 1.8 GHz Core 2 Duo, or equivalent 0.5 GB additional RAM

SUPPORTED VIDEO CARDS

NVIDIA GeForce series
FX 5900, FX 5950
6200, 6500, 6600, 6800
7200, 7300, 7600, 7800, 7900, 7950
8400, 8500, 8600, 8800
9600, 9800, GTX 260, GTX 280

ATI Radeon™ series
9500, 9600, 9800
X300, X600, X700, X800, X850
X1300, X1600, X1800, X1900, X1950
2400, 2600, 2900
3450, 3650, 3850, 3870
4850, 4870

les aviso que no se si son los recomendados o los minimos.fijense aqui si creen que los requisitos los invente yo:

http://www.thesims2website.co.uk/index.php?page=thesims3systemrequirements