512 MB minimum, but 2 GB or more is highly recommended for performance with larger models.
A graphics card supporting DirectX 9.0c with at least 256 MB (512 MB recommended) of video RAM. Key Software Components 512 MB minimum, but 2 GB or more
Windows 7 (SP1 required), Windows 8.1, or Windows Server 2008 R2/2012. 512 MB minimum
Intel or AMD processor, minimum 2.0 GHz (3.0 GHz or higher recommended). The CPU must support SSE2 . 512 MB minimum, but 2 GB or more
At least 2.0 GB to 3.5 GB of free space is needed to accommodate temporary setup files and the prerequisite footprint.