Mac Cpu Stress Test App

The performance of the graphic card has to be tested regularly to make sure that it is working at full capacity and is not causing any problems. This can be done with the help of a GPU stress test software. There are many GPU stability test software that are available online which can be used for MSI afterburner. The OCCT GPU restart will be able to detect any problems with regard to the graphic card so that it can be fixed.

Cpu Stress Test Online


Oct 02, 2012 In fact, as long as there is a command line that is unix based, you could run the ‘yes’ command to stress test a Mac CPU by using this approach. Be sure you quit and kill the ‘yes’ commands when finished stress testing the Mac, as otherwise the CPU usage will remain high and the fans will undoubtedly go on full speed shortly. May 14, 2015 Completely free to download from the Mac App Store, this app has only a single window and very few settings to worry about. You can choose the right hard drive to test, and the level of stress.


  • Apr 07, 2020 In this guide, we’ve given you a rundown on 11 of the best tools to use to stress test your CPU, RAM, and GPU. I f you’ve just built your computer, overclocked any of your components, or you are having problems with an aging system, stress testing your PC will give you a good idea of whether or not your computer is stable and, if it isn’t, where the problem might be coming from.
  • Mar 23, 2007  This command can be used to stress test a CPU and its cooling system. CPUTest may be used to verify stability when undervolting and overclocking CPUs. A universal binary executable of Glucas is included. Documentation is included in the download.

This free software can be used for fur rendering algorithms that will be able to measure the actual performance of the graphic card. This will be able to adapt the overheating of the GPU and the stability test and stress test will be able to detect problems like share overclocks and memory overclocks. This required an OpenGL 2.0 compact graphic card or some of the latest graphic drivers to work.


This software can be used for free to test the CPU, GPU, and the different power supplies. It will also be able to monitor the temperature, voltages and fan speed of the system along with constants like memory usage, FPS, and CPU usage. It will be able to provide very accurate error-detection algorithms that are suited for the CPU.


This freeware can be used to put the server PC or workstation under a heavy load that can be tested so that it can be run reliably. The individual tests can be employed after it has been customized to match the requirements. It will be able to run stress tests on the CPU and GPU. Loads can be used anywhere and disc access can be simulated.

Novabench for Mac

This software can be used on the Mac platform for free to test the performance of the PC. The tests can be done quickly and detailed information of the test could be obtained along with the overall system score. It will be able to run several tests like the floating point test, integer test, disk write speed test, 3D graphics test, and RAM Test.

Valley Benchmark for Linux

This software is available in a free version and as a premium software. It can be used for GPU stress testing that will be able to put the PC under heavy stress so that the power of the computer can be found. It is compatible with the Linux platform.

GpuTest for Mac

This software is compatible with the Windows platform and can be used for free to test the GPU stress. It will be able to run several tests like the stress test, tessellation test, geometry instancing test, pixel shader test and vertex test. It has a simple user interface that can be used to set the various options and launch the test options.

Most Popular Software – BurnIn Test

This popular software can be used for free to simultaneously test for various factors like reliability, stability, and endurance. It will be able to assist in PC troubleshooting and different diagnostics. It can help with reducing the test time as simultaneous testing is possible.

How to install GPU Stress Test?

When the appropriate software to test the GPU stress is found, it can be downloaded from the manufacturer. So most of the GPU stress test software are freeware, users will be able to download it easily. The pro version can also be downloaded to be used on a larger scale with more features. The software has to be downloaded by using the link and it can be installed onto any desired location after unzipping the file.

If the stress of the various systems in the computer is tested, it will help in avoiding problems like downtime, data loss and rebuilding of system. The configurations for the tests can be set and the hardware upgrades can be customized based on what the need is.

Related Posts




When you have a new or old Mac, every so often you will want to stress test your Mac to see if it has any problems or it can handle the heat. There are a variety of different ways in which you can do this, however one of the simplest ways is to use Terminal. This guide will show you how to set your CPU running at max speed, which you can tailor to the number of CPU’s cores you have. Then its just a matter of watching the results in Activity Monitor, watch for stability issues and see the temperature of your Mac rise.

The first step is to open Activity Monitor located in Applications > Utilities folder. Set the entries in the list view to be ordered by CPU %, so you can see what is using your computer. Then, if required, install an app to monitor the temperature of your Mac. I recommend iStat, either the dashboard or menu bar app, however Temperature Monitor, is also a good app if it is slightly more technical.

Digital persona software for mac os Then dbl-click the file to install the USB biometric ID drivers.32-bit64-bitTrouble Downloading?If you have trouble downloading/installing these drivers please try using a different browser.

After you have opened your monitoring software we can now stress your CPU. Open Terminal. As a starter type the following into Terminal:


You will notice, Terminal starts outputting the letter ‘y’ and the CPU of your Mac increasing. The yes command, will keep repeating this command indefinitely. To stop the process either press Control + C on your keyboard or close the Terminal window.

We can now use this command for each CPU (physical) core we have on your Mac. End the previous command, and type the following instead:

yes > /dev/null

This will output the results of yes to a special location on your mac called /dev/null . This is done because opening up multiple instances of the yes command will not increase the load on your computer past 100%. However, when we pipe this command to /dev/null it will.

If you notice in Activity monitor your CPU load will increase to 100% of the yes command. This is fully loading one CPU core to its maximum. If you use something like iStat, you will notice the load is spread evenly between each cores, a feature of your operating system. To load the other cores, open up a new Terminal window, keeping the first one open, and repeat the command.

When you open two instances of the yes command being piped to /dev/null your load will increase to 200%, keep doing this for each core you have.

One of the new features of the Intel cores is the ability to have hyper-threading, as a result your Mac will report more cores than is physically present. This means if you have a quad core processor, your Mac will report eight cores. It allows your computer to run faster. However, in this stress test you will never be able to stress those extra four virtual cores. It doesn’t really matter, but means your CPU monitor will only fill half way, when in reality every core is running at full speed. It also means your the yes command can run at 100% (for each core) and other tasks can compute at the same time.

When you have finally finished stress testing your Mac, either close the Terminal window, of press Control + C. I let the command run for a couple of minutes and watched the CPU temperature slowly rise. If you think you have a problem with your CPU running at full speed, running this command and carrying out normal running of your Mac at the same time will help you eliminate any possible problems.

If you have any questions or comments, please leave one using the form below.

If you want to keep up with the latests post from Mac Tricks And Tips I recommend you subscribe to the RSS Feed.

Related posts:

Where To Next?