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Best Tools for CPU Stress Test & RAM Stress Test

by | Nov 21, 2022 | How to


CPU and RAM Stress test and other computer components are necessary for evaluating performance. By running this test, we can determine the PC’s breaking point and stable point. By doing this, we can keep up with our PC work. The stress test can be run on both software and hardware. Once the test is completed, we can prevent harming our PC. But doing this carries certain risks. Applying the precise method while performing the test safely is advised. The best tools for stress testing your PC: After spending a lot of money on a new gaming PC. You should always check that it is operating as it should. You can do this with the use of a PC stress test. We will discuss RAM stress test and CPU stress test tools in this article to push your components to their limits while analyzing component stability.

However, stress testing is a useful technique for older systems as well to make sure everything is operating properly and performing as it should. Stress testing isn’t just for new systems. Stressing your system is an excellent way to check the stability of newly overclocked components’ overclocks and ensure that older components are still fully working.

In this article, we will describe the best RAM stress test and CPU stress test to run along with where to download them online. To help you monitor your gear and its performance, we will also include several hardware monitoring tools.

Please be aware that the GPU is not covered in this post. If you’re interested in learning more about GPU overclocking, see our page on how to do a GPU stress test.

Stress Test: What is it?

The concept of stress tests is rather straightforward. Both synthetic and real-world cases can be used in a stress test, although most of the time, synthetic tests are used to keep as many factors under control as feasible. In order to evaluate the stability of a component, stress tests are frequently used when overclocking, underclocking, or a component issue is suspected.

A component is treated to a maximum load during a stress test, and that load is maintained until an issue arises or the component passes the test.

RAM Stress Test Necessity

Is a RAM memory stress test required? It is, indeed! You can find memory errors and behavioral failures, such as blue screens,  random system reboots, paging errors, cache problems, slow read/write speeds, and hardware failures, by performing a random access memory stress test. It can also assist you in determining whether the RAM card under test will function in some unusual circumstances.

CPU Stress Test Necessity

  • For the purpose of determining the working life of CPUs, CPU reliability experts frequently test CPUs under predicted stress or accelerated stress. People, particularly CPU builders, typically need to perform a CPU stress test for the following reasons:
  • To test the stability of the CPU beyond what is typically used and its limits
  • To identify the causes of CPU failure
  • calculate the maximum CPU load
  • To ensure that intended requirements are satisfied
  • In order to properly optimize the CPU cooling system
  • In order to optimally reduce CPU noise

What differentiates real-world testing from synthetic testing?

There are two fundamental types of testing, and both are necessary in various circumstances. There are positives and negatives to both. We will attempt to provide an understandable explanation of both the precise dynamics of stress testing, which can become rather complex.

Synthetic testing

The goal of synthetic testing is to produce reproducible results with a minimum of software-oriented factors. Synthetic testing is the technique by which a piece of software generates a set of defined instructions that do not change or alter during the testing process. Synthetic software testing has the benefit of reliably and continuously loading each component to 100% load.

For example, Aida64 provides a built-in stress test program that regularly and continuously loads the CPU at 100%. In order to eliminate any software-related performance abnormalities, this is accomplished by giving the CPU complicated instructions to execute while maintaining a continuous stream of instructions that never diverge from one another.

Real-world testing

Real-world testing simulates how your PC would typically be used in order to provide a “real-world” performance analysis. This testing frequently consists of multiple components and is less focused than synthetic testing.

For example, a Prime95 test is a simulated workload that particularly targets the CPU. A gaming session, on the other hand, stresses the majority of PC components, primarily the GPU, CPU, and RAM.

This test is mostly for fault detection within the system as a whole, or to evaluate a specific component’s reactivity, thermals, or power draw in a real-world scenario. The idea is to test how the component operates collectively with the rest of your system.

Tools For System Monitoring

What are the top tools for stress testing your computer, then? It’s wise to keep an eye on your system whenever you do stress tests. Temperature and load tracking can be done with the help of monitoring technologies, some of which can be used in combination with benchmarking software to provide better tracking.


HWMonitor is a useful tool for determining component temperatures. This program is simple to use and provides real-time data on temperatures, clock rates, and power consumption.

Despite the fact that each component has a different maximum operating temperature, it is generally advisable to keep your CPU below 75°C.


In comparison to the other two, this tool is pretty advanced. User-friendly multi core component monitoring is possible with HWiNFO64. This tool allows you to monitor the temperatures of your CPU, GPU, RAM, and motherboard, as well as fan speeds and load times. This is a one-stop shop tool that offers about everything you could possibly need. HWINFO may be magical, but it can’t make sensors where there aren’t any, so make sure your PC has a sensor

for whatever you’re attempting to get data from.

Core Temperature

Core temp is a really straightforward tool that does exactly what it is designed to do. You can simply view your CPU’s load percentages and receive real-time temperature measurements. For those Intel CPU lovers out there, Core Temps is a little more advanced because you can view the data for each core of your processor, whereas with AMD, you can only view the overall temperature. Other software can report a per-core temperature on AMD CPUs, so we’re not sure why this is the case, but we assume it’s just a constraint on Core Temps’ end.

With the help of this tool, you may see a little bit more details about the installed CPU, such as voltage and frequency displays.

Tools for CPU Stress Tests

You will need a CPU stress test program if you want to examine the stability of your CPU after overclocking it or want to see how hot it is performing. The best tools for the job are those we’ve listed below, so download them right away to start CPU stress testing. These are the best tools for stress testing your computer.

Prime95 CPU stress test

Prime95 is a recommended tool for CPU stress testing since it is highly trustworthy and the most famous. The burden produced by this tool, which uses the CPU to find the Mersenne prime number, is extremely high. It would be reasonable to assume that your computer is functioning properly if it can handle running this stress test for a couple of hours (1-2).

When you want to put your CPU under stress, there are a few different tests you may conduct. Small FFTs can perform quickly to identify any potential problems. The blended test, which simultaneously stresses your CPU and RAM, may be quite helpful. However, because so many components were checked, it can be difficult to pinpoint the fault when utilizing this method to find the fault.

IntelBurn Test

Another free stress test program that lets you push your processor to its limit is the IntelBurn Test. You can use this program to determine how reliable your component is, but because it doesn’t have many built-in failsafes, customers have occasionally complained that their CPUs have been harmed. All of the stress testing tools on this list, not just Intel Burn Test, have the potential to destroy your system if your overclocks aren’t set up correctly. Don’t be misled by this; the IntelBurn test is still a very effective tool for CPU stress testing.


The only CPU stress test program on the list that you must pay for is Aida64. The package starts at about $39.95, which isn’t too pricey, but for the majority of people out there, it’s entirely unnecessary because the free tools already provide sufficient functionality. Having said that, Aida64 is among the most dependable and comprehensive CPU stress testing instruments available right now.

In contrast to the free ones, Aida64 requires payment in order to provide you with a complete system diagnostic tool. More computer experts, professionals in the IT sector, and fans are targeted by this type of kit. However, a free trial that has a set number of days and a few restricted capabilities is available, and it does actually come with the stress testing suite.

Tools for Memory/RAM Stress Test

When performing stress tests, RAM is commonly overlooked, yet for a complete system analysis, it is important. Especially when overclocking, you can diagnose potential problems with your components and check for stability with a RAM tool. RAM failures can sometimes be challenging to diagnose because when RAM fails, it can lead to a wide range of problems elsewhere in the computer.

This makes physically checking the RAM when possible the best practice.

Physical RAM checking

The best method for testing RAM is to physically check it; this is an easy procedure.

Remove one of the RAM sticks if you have two and check to see whether the issue still exists. If it does, take the second stick out and switch it with the one you took out first, if you will.

If it doesn’t work, it’s time to switch the slots. To ensure that the slots on the motherboard are still functional, try inserting a single stick of RAM into the appropriate slot or any other slot you haven’t been using. Repeat this for each open slot.

Prime95(Blend Test)

The blended test in Prime95 can be helpful for stress testing RAM. It determines the stability when overclocking, although it is best suited for CPU testing. However, it is important to note that this tool won’t examine your RAM for any faults when you are torture testing within the software. The tools listed below are a much better option if you’re seeking for a better RAM diagnostic tool.


MemTest86+ is the best program for testing RAM stability and potential RAM problems. MemTest will automatically start stress testing your RAM as soon as it has loaded. It will make it evident if you have any present hardware problems or if your RAM is unstable as a result of a recent overclock. It is important to note that since this program is not a Windows application, it must download to a USB pen. The software will launch automatically when your computer restarts if you configure it to boot from the USB drive, as previously specified.

Just make sure you have a few hours to spare. Because this test is extensive and takes a while to finish.

MemTest 64+

MemTest86+ is usually recommend for RAM stress test because it is the best tool available. Nevertheless, MemTest64+ provides a more approachable solution. Certain people find MemTest64+ more enticing because it runs under Windows. The majority of modern computers are 64-bit systems, and it is available for them.

Closing Thoughts!!

These are the best tools for CPU stress test and RAM stress test. Honestly, any of them will work; the key is to choose the one that works best for you. Make sure to download one of the online monitoring tools before you start. So, you can observe how your system is currently performing and how the stress testing affects its components.

Anyone trying to overclock and improve their system’s performance may find these tools useful. Without fear of breaking something, you can push these parts to the point where they become unstable. These tools will help in the diagnosis of the problem. And frequently provide a decent idea of the state of your components. We sincerely hope you enjoyed reading our article about the top PC stress test programs.

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The Team That Worked On This Build


For as long as he can remember, The Gaming Guide has always been interested in computers and gaming. It all started with the Sega Mega Drive and then evolved into PC gaming in his early teens. CS 1.6 was his first go at competitive gaming which soon evolved into CS:Source and now CS:GO – a game that he still plays (almost exclusively) today. Throughout that period he has also been a keen PC builder and enthusiast – dedicating a large portion of his time to the craft. My current rig is an ASUS 5700XT with AMD’s Ryzen 3600X.


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