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nPowerTek NPH SF775-2 Radial Fin Socket 775 Heatsink Review
nPowerTek NPH SF775-2 Radial Fin Socket 775 Heatsink Review
  69%   
Abstract: The nPowertek SF 775-2 heatsink features a body made of copper fins which have been wrapped around a central copper slug.

 Manufacturer  Category  Published  Author 
nPowerTek   Cooling / Heatsinks   Dec 13, 2006   Max Page  

Home > Reviews > Page: Intel LGA775 Heatsink Temperature Comparisons

FrostyTech Mk.II Synthetic Thermal Heatsink Test Results
Intel Pentium D / Extreme Edition & Quad Core class heatsinks tested at 150W
Intel Core 2 Duo / Pentium 4 / Celeron class heatsinks tested at 85W

Results based on readings from a 30x30mm copper interface die with 150W and 85W heat loads applied on the LGA775 version of the Mk.II Test Platform. Temperature results listed for each heatsink were calculated by determining the rise over ambient temperatures at time of test. Information on Frostytech's test methodology is available here.
Socket 775 compatible CPU heatsinks
manufacturer: model no.: fan speed: 150w
thermal test* (°c)
85w
thermal test (°c)
noise level (dba)

Thermalright Ultra 120 17.8 10.6 53.7
Zalman CNPS9700 LED high 19.0 10.4

56.5

Apack Zerotherm BTF90 21.8 12.7 52.1
Apack Zerotherm BTF80 22.8 13.9 51.9
Zalman CNPS9700 LED low 25.2 15.7 37.5
Thermalfly F1-IACSHA high 29.0 18.3 60.4
Zalman CNPS9500 AT 29.6 17.3 53.3
Alpha Novatech PRE9060M92P high 29.9 18.5 51.5
Akasa AK-961 30.0 18.7

60.7

nPowertek NPH-775-1 30.1 18.8 50.1
Sunon Waturbo 30.6 18.3 57.5
Apack CF800 high 31.4 20.7 48.4
Thermaltake Jungle512 high 31.6 20.4 60.8
Zalman CNPS7700-Cu high 32.9 19.7 50.7
Apack CF900 high 32.9 20.3 48.3
Evercool PT02-9232CP 33.3 19.9 63.3
Zalman CNPS7700-Cu LED high 33.5 20.6 49.8
Intel Stock Pentium D high 33.8 20.7 47.5
nPowerTek SF775-2 high 34.7 21.1 64.6
Thermalfly F1-IACSHA low 36.0 28.3 35.4
Akasa AK-960E 36.1 21.4 56.3
Thermalfly I75DUH 37.8 22.8 48.7
Intel Stock Pentium D low 40.3 23.9 40.5
nPowerTek SF775-2 low 51.1 30.6 44.3
150w
thermal test (°c)
85w
thermal test (°c)
noise level (dba)
*heatsinks are ranked according to the 150w thermal test results column (rise over ambient temp.). low temperatures with low noise levels are considered best. for reference heatsinks with variable-speed fans, only the high speed (12v) fan test result is included in the comparison sheet; more detailed results reside in each specific heatsink review.

the heat output from intel processors varies widely between single and multi-core cpus, so we've settled on two values which represent the upper limit of both existing CPU families. With a 150W heat load applied by the Intel LGA775 version of FrostyTech's synthetic thermal test platform, the nPowerTek SF775-2 heatsink yields an average rise above ambient temperature result of 34.7°C, yet with 64.6dBA noise!Given the speed of the fan, and the amount of noise here, this is not a very impressive result. At the much quieter fan speed of ~1500RPM, temperatures rise significantly to 51.1°C (44.3 dBA) over ambient with the same heat load.

The nPowerTek SF775-2 heatsink was also tested with an 85W heat load, and that resulted in a 21.1°C rise over ambient temperature at full fan speed. At a lower fan speed, temperatures held steady at 30.6°C over ambient.

From these results it's pretty clear that the nPowerTek SF775-2 heatsink offers up fairly average socket 775 heatsink performance at full speed. The fan noise levels necessary to achieve a rise above ambient temperature of 34.7°C, are particularly unimpressive however. Given these results, there isn't much incentive to switch from the stock Intel Pentium D heatsink, even though the nPowerTek SF775-2 is entirely made of copper.

Related Articles:

For more reviews on the latest heatsinks and cooling solutions, rely on FrostyTech's inventory of 350+ heatsink reviews. Here are a few other articles that you might enjoy as well...
- Apack Zerotherm CF800 Socket 775 Heatsink Review
- Evercool PT02-9232CP Bifurcated Fin Heatsink
- Thermalfly I75DUH Bifurcated Fin Socket 775 Heatsink Review
- Intel Stock Pentium D Radial Curved non-Bifurcated Fin Heatsink Review
- Thermalfly F1-IACSHA Heatsink Review
- Zalman CNPS9700 LED Low Noise Heatsink Review
- Antazone ASC1000 Copper Heatsink Review
- Zalman CNPS9500 AT Socket 775 Low Noise Heatsink Review
- Zalman CNPS7700-Cu LED Low Noise Heatsink Review

 Previous Page ° Heat Sink Review Index  

Table of Contents:

 1:  nPowerTek NPH SF775-2 Radial Fin Socket 775 Heatsink Review
 2:  360° View - nPowerTek SF775-2 Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4: — Intel LGA775 Heatsink Temperature Comparisons

List all nPowerTek heat sinks that Frostytech tested?

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