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CPU Stress Test — An online tool to test your CPU stability

CPU Stress Test — An online tool to test your CPU stability | CPU Expert

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“CPU Stress Test Online” or simply “CPU Load Test” is a free processor performance test allowing you to check online your processor at heavy load. Unlike the “CPU Benchmark Online”, here you can manually set the required load, as well as stop or resume testing at any time. However, your results will not be stored in the “CPUs Rank”, and you will not be able to compare your processor to the other ones. On the other hand, here you can find out the limits of your processor’s performance.

Threads

Power

What do the indicators mean?

Before starting the CPU stress test, review the indicators below to understand what they are for. Given that not all processors and devices withstand high loads, it is strongly recommended to gradually increase indicator values.

  • Speed
    The speed measures how fast the processor is, and is measured in the number of hash operations per second. Obviously, a more powerful processor develops a higher speed. However, you need to remember that for maximum speed you need to use the full power of the CPU (that is, specify as many threads and power as possible).
  • Threads
    The number of threads determines the number of simultaneous operations for computing hashes. Thus, more threads lead to a higher speed, but at the same time to a higher load. Multi-core CPUs cope better with the multithreading, this is why in such cases modern processors work faster and get better results.
  • Power
    The power indicates how much CPU time can be used by one thread (for example, 100% power means full speed without time idle). Since the power and the number of threads almost proportionally affect the speed, a 100% power + 1 thread will give the same speed as 50% power + 2 threads, or 25% power + 4 threads. Thus, more power and threads will provide higher speed and CPU load (for example, 50% power + 10 threads will result in a 500% load).
  • Points
    The number of score points indicates how many hashes were computed during the test. As you might have guessed, the number of points directly depends on the speed and the test duration.
  • FPS
    The number of frames per second (abbreviated as FPS) indicates how fast your browser is able to render new frames. As a rule, in most cases, browsers render frames at a speed of 60 FPS (although sometimes a slightly lower speed may be acceptable). However, if the frame rate drops below 30 FPS, it means that something is wrong (for example, the system cannot keep up with the current workload). Thus, FPS is a good indicator while running a CPU stability test.

How to run a CPU stability test?

The purpose of a processor stability test is to determine how smoothly the CPU works, even if it is under high load. So, to run a CPU stability test you have to:

  1. Start the CPU Stress Test at maximum load and wait 30-60 seconds.
  2. Keeping this tab in the background (don’t close it), switch to other applications or tabs, and do what you do as usual.
  3. Make sure everything runs smoothly and this “stressful situation” does not affect your usual tasks.
  4. Monitor the “Speed” and “FPS” indicator and make sure that their values do not drop significantly.

How to test the CPU at maximum load?

If you want to feel the smell of a heated device and hear the sound of the roaring fan, don’t hesitate to burn stress your CPU at heavy load as follows:

  1. Enter the maximum number of “Threads”: 128.
  2. Set the full “Power”: 100%.
  3. Press the “Start CPU Stress Test” button.
  4. Stay tuned for global warming news.

Why did my system become unstable during testing?

At maximum load, the stress test will try to use the full capacity of your CPU, which in the long term can lead to the fact that other processes will be performed more slowly and slowly, and some will even hang. For this reason, the stability of the system or other applications may be affected during testing. As a rule, modern systems and processors perfectly handle this and you should not experience big performance issues. Given this, you can consider it as a CPU stability test, which will show how well your system is coping with heavy loads. If you are planning to knockout your system by torturing all hardware, consider to use a PC Stress Test.

Why did my device shut down during the stress test?

Most likely your device shuts down to protect its hardware from overheating, which can definitely damage it if the temperature is not dropped or/and device is not de-energized immediately. This is why your device shuts down suddenly without any warning and it reports the reason for shutdown the next time it is turned on (although sometimes devices are silent about it).

This is a common and required behavior, so you should not worry about the fact that your device has turned off. However, you should be worried if your device heats up and shuts down too fast. Most often this happens if cooling system does not work properly (for example, lack of sufficient air flow or faulty heat dissipation). Another common reason might be that your device is not designed for heavy loads or its hardware is misconfigured. Either way, you must find out the cause and fix it before running more stress tests.

What is the difference between a PC Stress Test and CPU Stress Test?

They both are trying to knockout your system, except a CPU Stress Test tortures only the processor, while a PC Stress Test has a richer arsenal to test not only the CPU, but also GPU, RAM, HDD, and other hardware.

What is the best CPU stress test?

First of all, like any software, the best CPU stress testing tool must meet your system requirements. Next, it should be able to really torture your CPU. Finally, useful, but not necessary it should allow you to monitor system performance, measure temperature, create reports, run benchmarks, and provide features that you need.

If someone refers to the CPUX.Net Stress Tool as the best CPU Stress Test, I certainly won’t argue with that, especially if we’re talking about online testing tools 😉 However, if you are planning overclock your CPU, perhaps you may want a better stability tester written in a low-level programming language and it is able to torture all hardware at maximum. That’s why I recommend you to take a look at Prime95, Furmark CPU Burner, MSI Kombustor, Cinebench, CPU-Z, AIDA64, Intel Extreme Tuning Utility (Intel XTU), OCCT Linpack.

What are the system requirements to run the online CPU Stress Test?

Since this is web based CPU stress test, by and large you can run it almost anywhere, such as:

  • Browsers (Chrome, Firefox, Edge, Safari, Internet Explorer).
  • Devices (laptop, desktop, smartphone, tablet).
  • Operating systems (Windows, Linux, macOS, Android, iOS).
  • CPU Manufacturers (AMD, ARM, Huawei, Intel, Mediatek, Nvidia, Qualcomm, Samsung).

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The 11 Best Tools to Stress Test Your PC (CPU, RAM, & GPU)

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.

If 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.

So, in this guide, we’re going to give you our choice for the 11 best tools to use to stress test your system’s components, including the best CPU stress tests, the best RAM stress tests, and the best GPU stress tests. We’ve also included a number of hardware monitoring tools that you can use to monitor how your system is behaving during the stress tests as well.

Table of Contents

1. Hardware Monitoring Tools

2. CPU Stress Test Tools

3. RAM Stress Test Tools

4. GPU Stress Test Tools

5. Which Stress Test Tool Should You Use?

Hardware Monitoring Tools to Use While Running Stress Tests

While running stress tests on your system, it’s a good idea to monitor your system’s temperature and load levels. The following tools can be used in unison with the benchmarks listed below in order to give you more information while you benchmark your computer.

1. Core Temp

Core Temp is a nice lightweight CPU monitoring tool that will provide you with real-time CPU temperature readings and load percentages on your processor. If you have an Intel processor, Core Temp will also provide readings for the temperature and load on each individual core on your CPU. However, for AMD temperatures it just shows a single temperature for the entire CPU.

Core Temp also provides you with some basic info on your processor and tells you the voltage and frequency your CPU is running at as well. And, there are a few different handy plugins available for Core Temp that expand its capabilities, including an add-on that allows you to sync your RGB lights to the temperature of your processor or to its load, and a remote server plugin (for remote access),

Get Core Temp Here

2. GPU-Z

GPU-Z is similar to Core Temp, except that instead of monitoring your CPU, GPU-Z will, obviously, monitor your GPU. With GPU-Z you can monitor the temperatures and load on your GPU, as well as your GPU’s clock speed, onboard memory clock speed, fan speed, and the amount of memory being used among other things. GPU-Z is also free to use.

Get GPU-Z Here

3. MSI Afterburner

MSI Afterburner is another graphics card hardware monitoring tool. However, it dubs itself as being a graphics card ‘utility tool’ because of all of the other features it comes with. Along with being able to provide you with much of the same information that GPU-Z offers you, MSI Afterburner will also let you overclock your GPU, set custom fan profiles, run in-game benchmarks, and even record gameplay video or take in-game screenshots. Like Core Temp and GPU-Z, MSI Afterburner is free to use.

Get MSI Afterburner Here

4. HWiNFO64

HWiNFO64 is one of the more advanced hardware monitoring tools out there as it allows you to monitor multiple core components in your system. With HWiNFO64 you can track temperatures and other information on your CPU, GPU, RAM, and motherboard, as well as track fan speeds, component loads, and plenty more.

Get HWiNFO64 Here

CPU Stress Test Tools

If you’re looking to stress test your CPU, whether to check how stable your processor is running after overclocking it or to check and see if there is a cooling issue on your CPU, the tools listed below will help you get the information you need.

1. Prime95

Prime95 was developed by GIMPS, a computing project aimed at finding new Mersenne prime numbers (any prime number that can be the result of the equation: 2n − 1). However, while Prime95 was originally intended to find Mersenne prime numbers, the torture test that is included in the program (which helps ensure correct operation when searching for Mersenne prime numbers) has been adopted by many hardware enthusiasts to help them stress test their processor (and memory)—especially after overclocking their CPU and memory.

Get Prime95 Here

2. Aida64

Aida64 is another CPU stress test tool that a lot of users prefer over Prime95. Whereas Prime95’s torture test can push your processor to operate in an unrealistic manner, Aida64 takes a more practical approach by mimicking real-world processes that place a 100% load on your processor to test how it will hold up.

The only problem with Aida64 is that it isn’t free. For a basic license (that can be used on up to 3 computers), Aida64 costs $34.99 which, while not expensive, is probably not an ideal option for the majority of users who will only use the stress test a handful of times. There is a 30-day free trial, though, so if you only need to use it right now then you won’t have to pay for it.

Get Aida64 Here

3. IntelBurn Test

IntelBurn Test is another CPU stress testing tool that will help you push your CPU to the max in order to determine if it is stable. Like Prime95, IntelBurn Test also gets some flack for pushing the processor further than necessary. And, many feel that IntelBurn Test puts even more unnecessary stress on your processor than Prime95 does.

Get IntelBurn Test Here

RAM Stress Test Tools

For those of you that are looking to stress test your system’s memory, either to diagnose any issues that may be going on with your RAM or to check for stability after overclocking, the tools listed below will work for you.

1. MemTest86

PassMark Software’s MemTest86 will test your system’s memory to try and uncover any problems. There is also MemTest86+, which was an offshoot of MemTest86, but is no longer considered to be a viable option due to the fact that it hasn’t been updated since 2013—whereas the original MemTest86 continues to get updated.

Get MemTest86 Here

2. Prime95 (Blend Test)

We’ve discussed Prime95 as a popular CPU stress test tool, but its ‘Blend’ mode torture test also serves as a great RAM stress test as well. Unlike MemTest86, though, Prime95’s ‘Blend’ mode doesn’t check your RAM for errors. So, if you’re looking for a stress test tool that can also diagnose any issues your memory may be having, the MemTest86 is a better option. If you’re overclocking your RAM, though, and you want to check for stability, Prime95’s Blend test is a good option to use.

Get Prime95 Here

GPU Stress Test Tools

For GPU stress testing, the benchmarks listed below will give you a variety of options that will push your GPU to the max.

1. Heaven & Valley Benchmarks (Unigine)

Uningine’s Heaven & Valley benchmark tests are some of the more popular options to stress test your graphics card, either after overclocking it and testing for stability, or just as a synthetic benchmark to see how your graphics card performs. Unigine’s newer Superposition benchmark is worth considering as well, especially if you’re looking for a GPU benchmark that has VR features included in it.

Get Unigine Benchmarks Here

2. 3DMark

3DMark is another commonly used GPU stress testing tool that can be used on a variety of devices (PCs, laptops, phones, tablets, etc. ). 3DMark also monitors the clock speed, framerate, load, and temperatures during each benchmark as well. There is a basic edition of 3DMark that is free to use, but the full version will run you ~$30 on Steam.

Get 3DMark Here

3. FurMark

FurMark is another common GPU stress test option that is worth noting. However, FurMark doesn’t get a lot of love among hardware enthusiasts as it has been known to put an unrealistic amount of stress on your graphics card. FurMark can be used for short periods of times, but probably isn’t the best overall option for stress testing your graphics card.

Get FurMark Here

Which Stress Test Tool Should You Use?

While all of the stress test tools mentioned above can work for you, the reality is that your best bet for stress testing your system is to use multiple stress tests tools. If you’re looking for the most information possible, running multiple stress tests will give you the best idea of how the components in your system will hold up in extreme real-world scenarios.

TOP 10. Programs for computer stress testing

Computer stress testing programs are needed in various situations. Especially when buying used components, you need to check them for stability. Stress testing will first of all help determine the condition of the processor and video card.

This article contains the TOP 10 programs for stress testing the computer in general. The ones below can test all components (processor, video card, RAM and even a drive). Some of them are aimed at individual components.

Contents:

AIDA64 Extreme

The program contains all the detailed technical specifications of the computer. You can easily view them and even find out the temperature of the components. Available for free in the trial period. See how to use AIDA64 Extreme for more details.

Additionally, you can test your PC for stability. You can run a stress test of the processor, video card, RAM, and even the installed drive. Test all components at the same time or create stress on individual components.

OCCT Perestroika

This is a program directly for testing a computer. You can run a multifunctional test that can check the processor, RAM, video card, and even the power supply. See all test descriptions: how to use OCCT Perestroika.

The interface of the updated fifth version has become more convenient. All tests are in one place. You can change the number of threads directly in the program. Built-in monitoring will help control the main indicator — operating temperatures.

FurMark

This is a mild to very intense graphics card/GPU stress test on Windows 10. Ideal for testing graphics card performance prior to purchase. Shows all the necessary data for assessing the condition.

Used to diagnose video cards and look for artifacts or damage. All received data can be saved in a text document or a screenshot can be created. And send it to any person (friend or buyer) for analysis of its condition.

MSI Kombustor

The program is mainly used for synthetic tests of the video card. It includes all the necessary tools for stress testing, and also allows you to identify changes in important parameters before and after overclocking the graphics card.

You can check the performance of the user’s current configuration. Includes about ten synthetic tests. Displays all important graphics card parameters, including temperature, voltage, load level, FPS and others.

IntelBurnTest

Another CPU stress testing tool to help you maximize your CPU usage. This will show how stable it works. It is often used to test the stability of a processor overclock.

Compared to Primer95 programs, Linpack (using IntelBurnTest ) offers more accurate test results. Works with processors manufactured by Intel and AMD. A simple graphical interface allows you to adjust important parameters.

Intel Processor Diagnostic Tool

The program supports testing only Intel processors (which is very expected). The optimal test is a functional test that takes full advantage of the Intel Processor Diagnostic Tool and runs a stress test within a few minutes.

Additionally, you can check the functionality of all cores, the operating frequency, check specific processor functions, or perform a stress test. As a result, it shows the minimum and maximum temperatures recorded during the tests.

Prime95

This is a free application used to check stability when overclocking components. The test is performed by a huge amount of mathematical calculations designed to find a large amount of prime numbers.

Designed for testing the processor and RAM. The interface of the program is far from the best. Although the functions are really very few. You can choose only one from the available tests. Separately, we look at the temperature of the processor in Windows 10.

CPU-Z

Everyone knows the utility as a small application for viewing computer characteristics. But it contains a powerful stress test of the performance of the central processor. You have no idea how convenient it is. You can choose a certain number of cores.

There is a choice of reference processor for performance comparison. We have not yet seen such functionality in programs for stress tests. You can use not only the free, but also the portable version of the program.

Cinebench R20

The new benchmark is designed exclusively for testing processors. It was created to determine the level of processor performance when calculating a scene using Cinema 4D technology and the Intel Embree ray tracing engine.

Graphics card benchmark has been removed from Cinebench R20. Added support for multi-threaded processors. Now preference is given to chips with high clock speeds. The complexity of the processor test scene has increased significantly — up to 8 times.

3DMark

The most popular 3DMark benchmark gets stress testing functionality. True, it is available only for the Advanced and Professional editions. The stress test uses the Sky Diver and Fire Strike load scenarios. The check is carried out 20 times for more than 10 minutes.

As a result, the user is shown a graph of component temperature and frame rate. If there was throttling during testing, this will be displayed on the chart. The app can be purchased from the Steam Library.

Conclusion

Please note! Stress testing can damage your computer as a whole. Since not only the process works at the limit, but also other elements of the motherboard. In any case, the user simply needs to control the operating temperatures of all components.

There are many programs for computer stress tests. We recommend using AIDA64 Extreme. For professional graphics card testing, users prefer FurMark. Some benchmarks also load both the processor and the video card very adequately.

Computer stress test

Hello friends. In this article, we will look at how to perform a computer stress test. This is necessary to check the stability of PCs and laptops after they have been cleaned and repaired, when they are bought and sold, and in similar situations where we need to make sure that all computer components are in full working order. Comprehensive stress testing will let us know which of the components is prone to overheating. And separately stress-testing components will let us know which one fails when crashing into a BSOD or an emergency reboot. Below we will directly look at how to stress test the motherboard, processor, RAM and video card in the well-known AIDA64 program. And also we will mention the OCCT Perestroika program, stress tests of the processor and video card using this program were previously considered on the pages of the site.

What is a computer stress test

An extremely useful thing, friends, is computer stress testing. As part of such testing, the programs that conduct it create maximum loads on the components of the computer we have chosen and allow us to monitor temperature fluctuations. It is believed that if the computer works stably under such loads for half an hour, or better, an hour, and none of its tested components fail in various ways, the computer does not reboot abnormally, the system does not fly into a BSOD, the temperature of the components does not reach a critical limit, then the computer works perfectly. Did you get your computer back from service? Offer to buy a computer with hands? Or do you want to sell your computer on the secondary market? Run a stress test, wait at least those same half an hour, monitoring the temperature of the tested components. And you will know for sure whether you need to bring the computer back to the service, whether it is worth buying the offered computer from your hands, and if you are selling your own, which component of the computer you need to put in order.

Permissible component temperatures

But, friends, before stress testing your computer, you should know the permissible temperatures of your processor and video card. You must know these temperatures so that when they are reached, the stress test is immediately terminated. The generally accepted temperature indicators, above which the operation of the device is undesirable, are considered for processors — 70 ° C, for video cards — 80 ° C. But I recommend that you find out the allowable temperatures for your particular processor and video card. And you can find out these temperatures on the official websites of the devices, if, of course, they are supported by manufacturers. For Intel processors, the Tcase value will be indicated — the maximum temperature value allowed by the processor’s integrated heat sink.

Friends, please note that this is exactly the permissible temperature, this is the temperature at which the processor starts throttling, but this is not yet a critical temperature. However, if the processor under load produces a higher temperature than the Tcase value, this is no longer the norm. But for AMD processors, their website indicates the critical temperature — i.e. temperature at which the overheating protection is triggered.

For video cards, friends, manufacturers also display the maximum temperature. And, by the way, they don’t always display it, see the site’s article “How to find out the maximum temperature of a video card”. To determine the allowable temperature, subtract 20-25% from the maximum temperature.

So let’s move on to the stress tests.

Computer stress test in the AIDA64 program

AIDA64 is a well-known program for diagnosing computer components, for many it does not require introduction. The program displays detailed characteristics of PCs and laptops, their components, measures temperature, allows you to perform tests of the monitor, hard drive, RAM, as well as stress tests under conditions of maximum CPU, RAM and video card loads. The AIDA64 program, friends, is not free, but it has a 30-day trial version. Program download site — www.aida64russia.com.

By the way, you can use AIDA64 to find the allowed or maximum temperature of your processor. Go to the «Motherboard > CPU» section of the program, here in the «CPU manufacturer» block there should be a link leading to the official website of your processor, to the page of its characteristics.

We start the stress test in the «Service» menu, this is the «System stability test» item.

At the top left, mark the components that we want to stress test. I’ll select everything except the hard drive. Of them:

  • Stress CPU is a test of the actual operation of the processor;

  • Stress FPU — increasing the load on the processor by using floating point operations;

  • Stress cache – processor cache test;

  • Stress system memory – RAM test;

  • Stress GPU(s) — video card test.

Click «Start».

Switch to the “Statistics” tab, it will be more convenient for us to monitor the temperature in it. We do not perform any operations on the computer, we just monitor the temperature of the components for at least half an hour. Before us, the temperatures of the motherboard, each of the processor cores and the video card will be displayed in columns with the current value, minimum, maximum and average. During the stress test, we look at the graphs:

  • «Current» — current temperature,

  • «Maximum» — maximum temperature.

The time of the test is fixed at the bottom of the window in the «Elapsed Time» column. In my case, it took a little more than 4 minutes for the processor temperature to exceed Tcase. There is no point in testing further, the temperature will rise and in a few minutes it will reach critical. So I’m stopping the stress test.

If your hardware problems do not manifest themselves in the form of temperature rise, but artifacts on the screen, other glitches, the computer goes into a BSOD or an emergency reboot, in order to identify the causative component, run separate stress tests of the processor, RAM and video card in AIDA64. If you want to make sure that the hard drive is working in addition to analyzing its S.M.A.R.T., you can look at its performance under stress test conditions.

Note : Friends, please note that AIDA64’s CPU stress tests are very powerful. If you select all three processor tests — Stress CPU, Stress FPU and Stress cache, after a while your temperature may rise above the permissible Tcase even if the computer is dusted, the thermal paste is replaced, the cooler is working. It may be that your cooler is simply not designed for such loads that are applied to the AIDA64 processor. And if you don’t play games on the computer or otherwise put heavy loads on the processor, then you don’t need to do anything with the cooler. Replace it with a more powerful one or install additional cooling in the PC case when you need heavy loads.

Computer stress test in the OCCT Perestroika program

And another program that conducts stress tests of a complex computer system — OCCT Perestroika, stylized under the theme of the USSR. Conducts tests under maximum loads of processors, video cards, power supplies, looks for hardware errors in the operation of computer components. The program is completely free. An overview of its capabilities and a video card stress test can be found in the website article “Testing the stability of a video card with the OCCT Perestroika program”. And about the stress test of the processor in this program, read the article «Checking the processor».

On By alexxlab