System Requirements for AutoCAD Civil 3D 2014

For 64-bit AutoCAD Civil 3D 2014
Windows® 8 Professional edition or Windows 7® (recommended) Enterprise, Ultimate, or Professional edition operating system
AMD   Athlon™ 64 processor with SSE2 technology, AMD Opteron™ processor with   SSE2 technology, Intel® Xeon processor with Intel EM64T support and   SSE2, or Intel® Pentium® 4 processor with Intel EM64T support and SSE2   technology
4 GB RAM minimum (8 GB recommended)
12 GB disk space for installation (7 GB for electronic download with at least 2 GB free after installation)
1,280 x 1,024 true color video display adapter (1,600 x 1,200 with true color recommended; multiple monitors are supported)
Microsoft® Internet Explorer® 7 or later
DVD drive
Additional 3D modeling requirements
Pentium 4 or Athlon processor, 3.0 GHz or greater, or Intel or AMD dual-core processor, 2.0 GHz or greater
8 GB RAM or more
2 GB free hard disk available, not including installation requirements
1,280   x 1,024 true color video display adapter 128 MB or greater, Pixel   Shader 3.0 or greater, Direct3D® capable workstation class graphics  card  (1,600 x 1,200 display with true color recommended; multiple  monitors  are supported)