System Requirements


Most modern Windows PCs meet FlexSim's minimum requirements. Medium to large simulations and unique or complex modeling situations may carry additional hardware requirements. The recommended specs will give you the best experience using FlexSim Simulation Software.

Review our FlexSim Answers article Recommended System Requirements for an in-depth discussion regarding the hardware components that make the most difference when building and running your simulation models.

Minimum System Requirements

Most desktop and laptop computers produced in the last few years meet FlexSim’s minimum requirements. A system that meets these minimum requirements will allow you to:

  • evaluate FlexSim
  • work through the tutorials
  • build and run small to medium-sized models
CPU Any modern 64-bit Intel or AMD processor1.

To meet minimum requirements for performance, compatibility, and vendor support (such as driver updates) we recommend a CPU produced within the last 5 years, such as:

ARM processors are not supported.

Graphics A GPU supporting OpenGL 3.1 or higher.

To meet minimum requirements for performance, compatibility, and vendor support (such as driver updates) we recommend a GPU produced within the last 5 years, such as:

You may need to update your graphics driver for FlexSim to work properly.

See the FlexSim Answers article Graphics Compatibility - Common Problems and Solutions for more suggestions on improving graphics compatibility and performance in FlexSim.

FlexSim is not designed for use with GPU virtualization2.

OS FlexSim supports the following 64-bit editions of Windows3:

FlexSim is not designed for use in virtual OS environments2.

Disk Space 3 GB free
  • FlexSim’s installer may be up to 1.2 GB in size, depending on version. After successful installation, the installer file may be deleted.
  • After installation, FlexSim’s program files may use up to 1.2 GB of disk space, depending on version.
  • Your model files, CAD layouts, images, custom 3D shapes, data for import, exported reports, and other simulation related assets that you provide will take disk space in addition to the software’s installation footprint.
Additional Software


  1. Some modern processors built specifically for low power devices have lower performance than mainstream desktop and notebook processors. Consequently, for a highly demanding app like FlexSim responsiveness will suffer and simulations will take longer to complete on these low power CPUs.

  2. FlexSim requires compatible 3D hardware and driver support, which may be missing from virtual environments. Certain virtualization platforms, configurations, and drivers may successfully run FlexSim, but FlexSim does not test or support installations on virtual systems.

  3. Once an operating system reaches its end of extended support with Microsoft, FlexSim no longer actively supports that OS. Windows on ARM is not supported.

  4. FlexSim uses functionality provided by Microsoft’s latest .NET framework. A compatible .NET framework is already installed on most computers, though if necessary, it can be downloaded directly from Microsoft.