How to Test NVIDIA/AMD Performance with OCCT

1. Download the free 3.1.0 version of OCCT:

Download

   Information

- Version 3.1.0 should be used as the latest versions of OCCT don't provide the same functionality.
- GPU: MEMTEST will ONLY work on cards that supports Nvidia CUDA
- OCCT can be used to diagnose TDR116/117 errors, faults in the video memory or a defective GPU.
- Also works on Windows 8/8.1.

Make sure you have the latest DirectX 9.0 Runtimes
Download: DirectX End-User Runtime - Microsoft Download Center - Download Details

2. Run the setup, and install the program

The program contains four different tests as shown below

Test 1: GPU Stress Test

In the GPU: OCCT section select your desired options such as your Test type, Test Duration, Shader complexity 1 Hour is usually recommended for the test

Click ON to start the Stress test

Enabling the Error Check will allow the program to log any errors found in the test




Test 2: Video Memory Test

OCCT GPU Memtest, based on Nvidia CUDA runs a Memtest-like test on your GPU Memory. It is aimed at detecting manufacturing errors on the GPU memory


In the GPU: MEMTEST section select the number of Passes, usually 5-7 will be sufficient for detecting errors

Click ON to start the Stress test

At the end of each test a folder containing graph will be created in C:\Users\[user Name\Documents\OCCT\[Date] as shown below:

If any errors are found they will be reported on the graphs

Here is an example of a possible defect in GPU Memory:

   Warning

Monitor your GPU temperatures. If you see artifacts, or the temperature of your GPU exceeds 80C, stop the test.

Related Tutorials

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• How to Install a New GPU
• How to Overclock Your Card
• How to Stress Test a Video Card with Furmark
• Help Diagnose Graphics Card Problems