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System Requirements

System Requirements

The following table lists the platforms that the current version of ENVI supports.



Operating System

Supported Versions


Intel/AMD 64-bit




Intel 64-bit


10.14, 10.15*


Intel/AMD 64-bit


Kernel 3.10.0 or higher, glibc 2.17 or higher

* If you are installing ENVI on a Mac 10.15 operating system, or if you have ENVI installed on a previous Mac OS and are upgrading to 10.15, please refer to this Help Article before you begin the installation.

An X-Windows manager is required for Macintosh. ENVI was tested using XQuartz 2.7.11.

Supported versions indicate that ENVI was either built on or tested on that version. You can install and run ENVI on other versions that are binary-compatible with those listed.

The 64-bit Windows installer contains 32-bit binaries so that you can launch ENVI in 32-bit mode on 64-bit Windows systems. This ensures interoperability with ArcGIS. You can find the 32-bit versions of ENVI in the ENVI x.x program group under Start > Programs > ENVI x.x > ENVI for ArcGIS and Tools > ENVI Classic x.x (32-bit), where x.x is the software version.

ENVI Help requires an HTML5-compatible browser.

Hardware for Optimizing Performance

Recommending the best hardware configuration for ENVI is difficult, as hardware needs vary depending on the type of processing that is anticipated. Moreover, Harris Geospatial Solutions does not have the resources to test the wide variety of configurations that are possible. The following are issues to consider when choosing a system configuration for use with ENVI. These are only suggestions and not official recommendations.

Memory (RAM)

Most image display and processing capabilities in ENVI and IDL have been designed to work with minimal amounts of system RAM. Having a lot of RAM can help to avoid occasional memory allocation problems, especially with large datasets. Tests have shown that 8 to 16 GB of RAM is adequate for most tasks run using the latest versions of ENVI and IDL. However, if you anticipate working with very large datasets, or if you are building custom applications with ENVI+IDL code, then you may consider adding more RAM to your system.

Video RAM

For optimal performance, your video card should have a minimum of 1 GB RAM and should support OpenGL 2.0 or later. Also be sure to install the latest drivers for your video card. If you anticipate implementing sophisticated graphical displays while building custom applications in ENVI+IDL—or if you expect to work with large datasets—then the more video RAM the better.

Processors and Cores

ENVI inherits some of IDL's multithreaded routines. This allows for a significant performance boost in many processing tasks on systems that have multiple processors. Keep in mind, however, that the performance boost will never scale with the number of processors/cores. For example, two processors will not yield performance that is twice is fast as one. This is because many processes are not multithreaded; for example, file input and output.

Disk space

Recommending a minimum amount of hard-drive space is difficult because it depends on the specific workflows and data that will be used. Our technical support group uses systems with 1 TB of disk space, which is more than adequate for day-to-day use. However, this would not address the needs of a production facility that processes large amounts of data on a daily basis.

See Also

Multithreading and Distributed Processing in ENVI, Feature Support

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