The recommended system requirements have been revealed on www.TheSims.com
REQUIRED: Internet connection required for product activation.
OS: 64 Bit Windows 7, 8, or 8.1
PROCESSOR: Intel core i5 or faster
AMD Athlon X4
MEMORY: 4GB RAM
HARD DRIVE: At least 9GB of free space with at least 1GB additional space for custom content and saved games
DVD-ROM: DVD-ROM drive required for installation only
VIDEO CARD: NVIDIA GTX 650 or better
SOUND CARD: DirectX 9.0c compatible
DIRECTX: DirectX 9.0c compatible
INPUT: Keyboard and mouse
Please keep in mind that these are recommended specs, not minimum required.
Thanks to Sims Community for the tip