OCCT or OverClock Checking Tool is a CPU stability testing program to test your CPU’s stability under various conditions. Often on Windows, we encounter random freezes and lags, while gaming or performing intensive work. The problem may continue to exist, even after you reinstall your Windows because in such cases, it is the hardware that could be causing the problem. We can run a variety of stress tests to find out what is causing the crash – maybe it Overclocking, RAM or CPU. This nifty little program will help in running a variety of stress tests to find out what is causing it.

OverClock Checking Tool for WindowsPC

Benchmark CPU free

Main features:

Three different test types
- CPU = no RAM tested, a lot of heat generated on the CPU, errors are usually CPU-centered
- RAM = Maximum error detection, tests the whole chain CPU-Chipset-Memory
- Mix = CPU and RAM alternated
Three tests modes
- Auto = 1h long Mix test
- Custom (Infinite) = Infinite loop of the test type of your choice
- Custom (fixed) = A test of the type of your choice, and a duration of your choice
Integrated monitoring and System information thanks to CPU-Z and HWmonitor engine
External Monitoring Program support through plugins (Everest, Speedfan, and many more)
Graph output showing temperatures and voltages of your computer

Main stress tests:

CPU:OCCT

CPU-centered tests
Fully compatible Core i7 compatible and optimized

CPU:LINPACK

The very same as IntelBurnTest, based on a test provided by Intel
It will make your CPU hotter than ever!
32 and 64 bits support

GPU:3D

Home-made test written in Direct3D that will make your GPU really hot – this test is similar to ATITool and Furmark
Will make your graphics card real hot – especially the GPU
Has an error detection mode similar to ATITool
SLI and Crossfire support

GPU:Memtest

MemTest86+ like test on your Graphic card memory and report any error found
Requires an Nvidia Graphic Card, and a GeForce 8 or Higher!

Power Supply

Dedicated to power supplies – it’ll launch GPU:3D and CPU:LINPACK at the same time to load your power supply. BEWARE, THIS TEST IS REALLY DEMANDING!
WARNING, DO NOT USE THIS TEST WITH NO-NAME POWER SUPPLY, AS A FEW DEATHS HAVE ALREADY BEEN REPORTED!
This test demands 30 to 40% more power than crisis on a quad-core system with an SLI graphic system installed.

How do I check my CPU benchmark?

There are tons of tools available in the market to check CPU benchmark on Windows 11/10 computers. For example, you can use CineBench, RealBench, CPU-Z, etc. All of them are available for free and show quite an accurate result while using them on Windows PC.

What is a good CPU benchmark tool?

OverClock Checking Tool is one of the best CPU benchmark tools you can download and use for free on Windows 11/10 PC. Whether you need to check the CPU or GPU benchmark, you can use this aforementioned software without any problem. A detailed guide is mentioned here, and it is recommended to follow it to get the best output.

OCCT download

Download OCCT from its here.