![]() Default is 10 but if you want the test to be harder and longer you can change that number to anything you like. Another nice feature is the ability to set the number of iterations employed during the test. IntelBurnTest makes heavy use of RAM in it's testing method. If your amount of RAM is limited you will not be able to choose the higher difficulty levels. If you have plenty of RAM you can set the difficulty of the stress test at either Standard, High, Very High, or Extreme. Pretty well maintained and can be used on both Intel AMD CPUs. Because of this some people recommend using an earlier version of the program and one major motherboard manufacturer is on record as saying they no longer use it in their testing because it can drive temps up dangerously high. More recent versions of Prime95 utilize AVXII instruction that are accentuate this pattern. If you want an older version without AVX then download v.26.6. 27.7 Prime95 utilizes AVX instruction sets. Prime95 is a real heater and longer tests produce temp spikes at intervals that are considerably higher than the temps seen during most of the testing cycle. ![]() It will grind away until you manually stop it. This would be handy in the situation where you could not stick around to attend the process. Prime95 has various custom settings but one thing it lacks is a setting that would allow you to specify the time length of the test. of Prime95 blend mode, though some insist on a longer time and some prefer the small FFT test mode, which puts more stress on the CPU but less on the system RAM than the blend mode. The defacto proof of stability has become passing 2 hr. ![]() Prime95 - Historically, the most popular stress tester among overclockers. Each round of calculations is called an "iteration." Some of the iterations are much more demanding than others and will cause the highest temp spikes. Some of the calculations are more demanding than others and so you will see core/package temps rise and fall during the stress testing in a more or less rhythmic fashion. These stress testers put your CPU and memory to work doing a series of mathematical calculations, one after the other. The most popular are Prime95, OCCT and IntelBurnTest. So I'm going to create three categories for dealing with stress testing tools: Heaters, Realistic and Pretenders. But neither do you want to take stress testing shortcuts that may result in blue screens right in the middle of composing a long document or electronic filing of your taxes. It would be a waste of time, electricity and probably also shorten the life span of your computer to some extent. Casual users need not crank up the volts and the the heat just to be able to pass the most demanding stress tests. If you just want a snappier computer to use for undemanding tasks such as typing, email and internet browsing then your stress testing does not need to be quite as stringent as does someone who is playing demanding 3D games, folding, video rendering or crunching huge databases and others tasks that intensely work the CPU and memory. Let me say first of all that in the end the goal is to achieve the max overclock that is truly stable on the lowest possible voltages with regard to how you use your computer. What are the weaknesses and strengths of each one? Having used all of the above at one time or another, I have some input for you that may be helpful. So many choices! And this is not even an exhaustive list! If you just want to perform a benchmark instead, click the “Cancel” button.AMDOverdrive? Prime95? OCCT? IntelBurnTest? Intel Extreme Tuning Utility? AIDA64 Extreme? Realbench? Note that the torture test can take quite a while to run. If you want to perform a torture test, go ahead and click the “OK” button. The torture test is ideal for testing the stability and heat output of your CPU, and is particularly useful if you’ve overclocked it. Prime95 offers to perform a torture test right off the bat. When it asks, click the “Just Stress Testing” button to skip creating an account. Just download the Prime95 ZIP file, extract it, and launch Prime95.exe. Prime95 is also a portable app, so you don’t have to install it. RELATED: What Is a "Portable" App, and Why Does It Matter? It’s an older app, but will work with pretty much any version of Windows-from XP all the way through 10. It’s part of a distributed computing project for finding Mersenne prime numbers, but it includes torture test and benchmark modes. Prime95 is a CPU stress test and benchmark tool popular among overclockers. ![]() Stress Test and Benchmark Your CPU with Prime95
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