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Approaching the 5GHz barrier with Noctua's NH-D14

London / Vienna, June 1st 2010 - Allan Campbell, Founder and Editor-in-Chief of picked Noctua's award-winning NH-D14 cooler for his overclocking tests on Intel's latest Core i7 875K and Core i5 655K processors achieving a stunning speed of 4.8GHz ... setting a new world record for the K-series CPUs on air cooling.

"This cooler is without a doubt my favourite on the market right now and I have achieved results very similar to good water cooling.", says Allan Campbell. "It is a brute for sure but the results are unmatched on air and it has a place in my heart now for every serious build I create."

Noctua's NH-D14 cooler has won more than 150 awards and recommendations from the international press since its introduction last November and has been chosen by first-tier websites such as Tom's Hardware for their overclocking tests on Intel's new K-series CPUs. As KitGuru's tests have shown, the NH-D14 can help to overclock Core i5 and Core i7 CPUs to speeds previously thought impossible on air cooling.

In order to achieve these outstanding results, KitGuru increased the CPU core voltage to 1.42V on the 875K and 1.46V on the 655K. Despite the enormous thermal overhead at such high voltages and 4.8GHz, the NH-D14 managed to keep the processors rock stable at load temperatures of 87 and 79 degrees Celsius respectively. KitGuru even reached the 5GHz barrier on the 655K but the system didn't prove entirely stable at this speed. As Allan notes, this is "a staggering result and it shows just how capable the Noctua cooler really is."

Links: Intel Core i7-875k and i5-655k overclocking

About KitGuru
Established in 2010, KitGuru brings a new level of drive and energy to the technology journalism arena. With our head office in London at Korona Solutions HQ, and our main test facility in Belfast, we're able to source and evaluate the very latest technology as fast as any other site on the planet. We then use our skill and experience to deliver solid, reliable buying advice.The quality of both our investigative journalism and our impartial reviews has seen KitGuru achieve an exponential growth in web traffic since the site's formal launch.

About Noctua
Designed in Austria, Noctua's premium cooling components are internationally renowned for their superb quietness, exceptional performance and thoroughgoing quality. Having received more than 1000 awards and recommendations from leading hardware websites and magazines, Noctua's fans and heatsinks are chosen by more than a hundred thousand satisfied customers around the globe.

09.10.2015 - NH-D9L
Test verdict: "Akhir kata, mirip seperti Noctua NH-U9S, Noctua NH-D9L adalah sebuah heatsink fan dengan build quality baik, fan 92mm yang cukup hening, berukuran cukup ringkas, namun masih bertenaga untuk menangani sebuah Core i7-4790K yang dioverclock pada 4.5Ghz atau lebih." (Alva Jonathan,

08.10.2015 - NH-U9S
Test verdict: "Jika Anda menginginkan sebuah PC mini dengan prosesor yang powerful, dan masih bingung memilih heatsink yang memiliki ukuran kecil dan performa baik, Noctua NH-U9S bisa masuk dalam pertimbangan Anda." (Alva Jonathan,

08.10.2015 - Formula Hardware NF-P14s redux-1500 PWM
Test verdict: "Por lo tanto, bajo nuestro punto de vista, estamos ante unos productos de gran rendimiento, gran calidad, y sin duda alguna, son ventiladores totalmente recomendados." (Asis Ferrer, Formula Hardware)

08.10.2015 - NH-D15S
Test verdict: "Hält der Noctua NH-D15S also was er verspricht beziehungsweise was man von ihm erwartet? Die Testergebnisse sprechen wohl eine eindeutige Sprache und sagen klar und deutlich: Ja!" (Tobias Guttmann,