System Requirements


FlexSim's system requirements are divided into two tiers:

  • Minimum: Most modern Windows PCs meet FlexSim's minimum requirements. While the minimum requirements are adequate to trial the software, they may be underpowered for many common simulation modeling scenarios.
  • Recommended: Following the recommended specifications will give you the best experience using FlexSim Simulation Software. Many common modeling scenarios require this added performance.

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
Operating System

A 64-bit edition of Windows under current Microsoft extended support 1

FlexSim is tested and designed for Windows personal computer systems 2.


A modern x64 Intel or AMD processor

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.


8 GB RAM or more


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.

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. 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.

  2. FlexSim Software is designed for and tested on Windows personal computer systems. Remotely connected systems, thin-clients, virtual operating systems, virtualized GPUs, and other non-PC environments are not tested or directly supported. FlexSim Software requires compatible 3D hardware and driver support, which may be missing from such environments.

    Certain non-PC environments may successfully run FlexSim Software and meet your compatibility and performance needs. FlexSim provides no guarantees about the suitability of such environments. If you choose to use FlexSim Software in a non-PC environment, please test thoroughly and understand that FlexSim will not be able to provide more than general system support for your unique environment.

  3. FlexSim Software 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.