But when torture testing your CPU, there’s no difference which version you’re using. It’s not free, but comes with a 30-day trial period.Ĭinebench R20/R23 – When benchmarking your CPU, Cinebench R23 is a bit better because it runs each test three times by default, giving you more precise results. It’s updated for modern CPUs making it the best free CPU stress test you can get.Īida64 – Not as punishing as Prime95, but still a solid way to test your CPU more realistically. Prime95 – This is a very old but still relevant CPU stress test tool. Also, most CPU benchmark and stress test apps are extremely lightweight and downloading them shouldn’t be an issue even if your internet connection is slower than slow.
ONLINE CPU STRESS TEST FOR FREE
It’s better to use a tried-and-true tool that’s available for free than a shady online tool. When it comes to online CPU stress tests, we don’t recommend using them. This one can sweat even the most powerful CPUs.Ĭheck out the best CPU stress test you can use below.
The large FFTs test should be followed with a “Small FFTs” test, which is the most demanding CPU torture test found in Prime95. Next, when overclocking, first use the “Large FFTs” test to test your XMP memory profile. If the app, or any of the threads, doesn’t crash or stop running, you’re fine. Important since most RAM modules nowadays use some sort of XMP. It combines all other tests and is great for new systems because this way you can test both the CPU and memory. When testing a new build, you can just select the “Blend” option. Now, when you open Prime95 you’re greeted with lots of different settings, so let us explain which settings to use depending on your use case. For instance, Mos sensors show you VRM temperature, which could throttle your CPU if it goes too high (over 90 degrees Celsius or higher). It’s updated for modern CPUs making it the best free CPU stress test you can get. When it comes to the monitoring software, focus on CPU thermals but also thermal data from motherboard sensors. Prime95 This is a very old but still relevant CPU stress test tool.
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