WPrime

WPrime is a computer program that calculates a set number of square roots using Newton's method for estimating functions verifying the results by squaring them then comparing them with the original numbers.[1]

## Contents

* 1 Significance
* 2 Criticism
* 3 References
* 4 External links

## Significance

WPrime is popular in the overclocking community for testing the performance and stability of computer processors, as Super PI is single-threaded. Its popularity stemmed from being able to utilize 100% of a multi-core processor's computing time enabling its use as a multi-threaded benchmark application in competitions,[2] computing reviews,[3] and marketing campaigns.[4]

## Criticism

The use of Newton's method for testing stability is inherently unreliable due the self-correcting nature of the algorithm with subsequent iterations correcting any potential errors. WPrime would theoretically only detect instability from several consecutive errors. Additionally some have argued that the multi-threading algorithm used is not indicative of real world performance[5] though much of this was due to poor implementations of multi-threading in consumer applications the early days of multi-core processors.

## References

1. ↑ Ben-Mayor, Ben (2015-05-05). "Test your Processor Performance with wPrime". http://www.majorgeeks.com/news/story/test_your_processor_performance_with_wprime.html. Retrieved 2015-10-05.
2. ↑ "GIGABYTE Announces Core Prime Overclocking Contest on HWBOT". http://www.gigabyte.com.au/press-center/news-page.aspx?nid=949. Retrieved 2015-10-05.
3. ↑ Lvcoyote (2014-06-12). "Intel i7 4790K Devil's Canyon CPU Review". http://www.overclockers.com/intel-i7-4790k-devils-canyon-cpu-review/. Retrieved 2015-10-05.
4. ↑ "iCafe Increases Revenue with Improved Uptime, Performance, and Reliability with Intel® Xeon® Processor-Based Server". Intel. 2008. https://communities.intel.com/servlet/JiveServlet/previewBody/2653-102-1-3813/FINAL%20EN%20320769-001US.pdf.
5. ↑ "About wPrime". http://www.wprime.net/About/. Retrieved 2015-10-05.

## External links

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