ModelSim-Altera 6.4a Software

This version of ModelSim-Altera Edition for Quartus II software will no longer be available after 6/26/2020. This version does not include the latest functional and security updates and will not be supported. All versions are provided as is. Intel recommends that users of this version uninstall and discontinue use as soon as possible. Users should upgrade to the latest available software version for their device and follow the technical recommendations to help improve security.

Select a previous version of Quartus II:

Available Mentor Graphics® ModelSim®-Altera® software:

  • ModelSim-Altera Edition—A license is required (paid)
  • ModelSim-Altera Starter Edition—No license is required (free)

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ModelSim-Altera Edition 6.4a Software (Includes Pre-Compiled Libraries for the Quartus® II Software Version 9.0) Download File Size
Windows (ModelSim-Altera Edition)
Windows Vista (32-bit) and Windows XP (32-bit)

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Requires a license

332 MB
221 MB
Windows (ModelSim-Altera Starter Edition)
Windows Vista (32-bit) and Windows XP (32-bit)

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No license required

332 MB
221 MB
Linux (ModelSim-Altera Edition)
Red Hat Linux Enterprise 4/5 and SUSE Linux Enterprise 9 (32-bit)

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Requires a license

284 MB
217 MB
Linux (ModelSim-Altera Starter Edition)
Red Hat Linux Enterprise 4/5 and SUSE Linux Enterprise 9 (32-bit)

Download Button
Download service pack
No license required

284 MB
217 MB

System Requirements

Requirement Type
Operating SystemWindows Vista (32-bit)
Windows XP (32-bit)
Red Hat Enterprise Linux 4 (32-bit)
Red Hat Enterprise Linux 5 (32-bit)
SUSE Linux Enterprise 9 (32-bit)

Download Notes

  1. Installation Instructions: View Installation Instructions for all operating systems.
  2. Support: The Quartus II Software Support web page can help with questions or problems that are not answered by the information provided here or in Quartus II Help. If you have a question or problem that is not answered by the information provided through these resources, contact Altera Applications through the mySupport website.
  3. Legal Notice: The Altera Software Subscription License Agreement governs the installation and use of this software.