The name OCCT comes from OverClock Checking Tool. This application will let you benchmark and overclock your system components.


  • Up to 16-core support ( for instance, up to a Quad-Kentsfield or an Octo-Conroe )
  • Customizable tests ( Duration, Priority, CPU or RAM, ... )
  • CPU and Motherboard detection
  • Monitoring support through 3rd party application ( i.e. MBM5, Speedfan and Everest Ultimate Edition 3.50 or above )
  • Can produce graphs showing temperature and voltages during the test : Unique feature !
  • Multi-language support

What's New:

  • Updated beta version to 6.0.1 Beta 7
  • Main: Revamped a lot of parts of OCCT that had technical debt
  • Main: LOTS of bugfixes everywhere
  • Main: rewrote the test scheduler of OCCT to pave the way for future updates
  • Main: revamped a lot of parts of OCCT that had technical debt
  • Main: Increased the area available for test names in the UI
  • Main: Better handling of multi-GPU and various bugfixes
  • UI: Revamped the test UI for selecting Infinite/Timed tests
  • UI: Dropped the "Timed with idle periods" test in the free edition of OCCT
  • UI: got rid of the space in the test thumbnails - fits much better in tight spaces !
  • Test: added a monitoring-only test that will do nothing, but once cancelled/finished, enabling you to generate reports
  • 3D & Power Supply: Fixed a bug where the resolution list could be empty on startup
  • Report: Names are now prefixed with OCCT- for better sorting
  • Translations: Added Uzbek (Thanks Sher Khan !)