Windows XP Service Pack 2 or Windows Vista Service Pack 1 or Windows 7
CPU Intel Pentium 4 or equivalent 2.0GHz (XP) 2.4GHz (Vista or 7) [If built-in graphics chipsets then 2.6 GHz Pentium D CPU, or 1.8 GHz Core 2 Duo, or equivalent.]
Memory 1 GB (XP) 1.5GB (Vista or 7) [If built-in graphics then add 0.5 GB additional RAM]
Hard drive space 6.1GB or more for extra content
Graphics hardware DirectX 9.0c compatible card with 128 MB RAM (NVIDIA FX 5900/ATI 9500 or better) and support for Pixel Shader 2.0
Sound hardware 100% DirectX 9.0c compatible card
I would say low settings since based on what I've read; the Sims 3 actually needs a decent video card unlike the Sims 2. The nVidia 6200 is considered to be very low end. Intel's current HD 2000 and HD 3000 graphic cores are more powerful than the nVidia 6200.