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Prime95

Prime95 30.19.11

Great Internet Mersenne Prime Search, GIMPS, finding World Record Primes Since 1996. Learn what's new on this latest version. Click here if the download does not begin automatically.

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More about Prime95

Prime95 has been a popular choice for stress / torture testing a CPU since its introduction, especially with overclockers and system builders. Since the software makes heavy use of the processor's integer and floating point instructions, it feeds the processor a consistent and verifiable workload to test the stability of the CPU and the L1/L2/L3 processor cache. Additionally, it uses all of the cores of a multi-CPU / multi-core system to ensure a high-load stress test environment.

How it works: Read more.

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