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OCCT: Benchmark and overclock your system components with ease

OverClock Checking Tool (OCCT) is a free application designed for benchmarking and overclocking system components.

OCCT includes 4 different tests to assess the stability of your computer. CPU and CPU: Linpack to test the processor, GPU: 3D to test the stability of the graphic processing unit, and Power Supply which combines CPU: Linpack and GPU: 3D to load your power supply to the max.


- All tests can be customized using several criteria such as priority, duration, RAM, CPU…etc.
- Detection is enabled for CPU and Motherboard.
- Monitoring is supported via 3rd party applications such as Speedfan, MBM5 and Everest Ultimate Edition 3.5 or higher.
- Option to produce graphs displaying temperature and voltage during the test.
- Supports multiple languages.

Download Details

  • License:
  • Platform:
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  • File size:
    15.70 Mb
  • Updated:
    Jul 02, 2021
  • User Rating:
    4.2 / 5 (21 votes)
  • Editors' Review:
    Not yet reviewed
  • Downloads:
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