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nPowerTek TTIC NPH-K8 Big Heatsink Review
nPowerTek TTIC NPH-K8 Big Heatsink Review
  79%   
Abstract: The 148mm tall copper heat column absorbs heat from the processor core, transferring it up through the center of approximately 45 thick gauge aluminum cooling fins of 125 x 77mm in size.

 Company link  Category  Published  Author 
nPowerTek   Cooling / Heatsinks   Jan 21, 2007   Max Page  
Home > Reviews > Page Title: Final Heatsink Temperature Comparisons

FrostyTech Mk.II Synthetic Thermal Heatsink Test Results
AMD Athlon64 / FX / X2 & Sempron class heatsinks
Results based on readings from a 38x38mm copper interface die with 125W heat load on the K8 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 939/940/754 & AM2 compatible CPU heatsinks
Manufacturer: Model No.: *Fan Speed: 125W Thermal Test (°C) Noise Level (dBA)

Thermalright Ultra-120 12.4 53.7
Zalman CNPS9700 LED high 16.5 56.5
AVC Z7U7414001 (stock AM2) high 17.0 63.0
Noctua NH-U12 17.5 45.4
Gigabyte GH-PCU23-VE high 17.5 65.6
Gigabyte G-Power Pro high 18.6 71.9
Noctua NH-U9 18.8 58.4
Apack Zerotherm BTF90 20.5 52.1
Coolermaster Hyper6 high 20.5 54.7
Apack Zerotherm BTF80 21.3 51.9
Thermaltake Venus 12 high 21.7 68.1
Cooljag SFO-Q high 22.2 60.6
ASUS Starice high 22.8 67.4
Zalman CNPS9500 AM2 high 23.0 53.2
Arctic Cooling Freezer 64 Pro 23.2 50.9
Coolermaster Aquagate Mini high 23.2 59.2
Thermaltake Polo 735 high 23.4 68.0
Cooljag SFO-H high 23.6 60.6
Alpha PAL-8150 23.7 58.9
Zalman CNPS9500 LED high 23.8 50.3
Verax Helado 24.3 36.3
AVC Z7U3301001 (stock 939) high 24.6 59.9
Zalman CNPS8000 high 24.8 57.4
Gigabyte 3D Cooler-Ultra high 24.8 63.0
OCZ Tempest 26.0 51.6
Scythe Shogun high 26.0 45.9
EKL V8 high 26.3 57.5
Thermalfly F1-IACSHA high 26.6 60.4
Zalman FS-C77 26.7 56.5
Gigabyte 3D Rocket-Pro high 26.9 56.7
Zalman CNPS7700-Cu high 27.0 50.7
Gigabyte 3D Cooler-Pro high 27.0 62.5
nPowerTek NPH-Big K8 27.8 54.0
Zalman CNPS7700-Cu LED high 28.1 49.8
Akasa AK-873 high 28.2 59.2
Spire SP601B3 28.3 48.9
Ajigo MF064-074 high 28.8 60.3
Gigabyte 3D-Rocket 28.9 50.7
Vantec Mach1 high 29.2 56.9
CoolJag SFO-D(18SC) 29.6 64.0
Antazone AS-C1000 30.2 57.6
Arctic Cooling Alpine 64 30.5 43.9
Zalman CNPS7000A-Cu high 30.3 45.2
Dynatron SK-V24 30.3 56.4
Verax Quattro 1 high 30.7 55.4
Zalman CNPS7000-Cu high 31.0 45.2
Coolermaster Hyper48 31.7 43.6
Scythe Kama SCKK1000 31.9 47.5
Scythe Samurai SCSM1000 high 32.1 51.6
Zalman CNPS7000B-CU high 32.3 44.9
Thermaltake Silentboost K8 32.3 49.7
Jetart JAX801 33.2 53.5
Dynatron A22 34.5 44.5
nPowertek NPH K8-1 34.6 52.2
Ajigo MF043-044 (stock 754) 35.0 45.4
Arctic Cooling Silencer 64 Ultra TC 37.5 55.5
Gigabyte NeonCooler 8-BL 37.7 42.0
Titan TTC-K8ATB/825/SC 38.7 63.1
Akasa AK-860SF 39.4 45.2
Evercool K802-715 42.1 51.5
Spire SP741B3 43.2

45.6

Evercool Magic Cooler 46.6 55.5
ASUS Starice low 92.4+ 34.4
125W Thermal Test (°C) Noise Level (dBA)
*Heatsinks are ranked according to the 125W 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.

With a 125W heat load applied by the FrostyTech synthetic thermal test platform, the nPowerTek NPH-K8 Big heatsink yields a rise above ambient temperature of 27.8°C, with 54.0 dBA noise generated. The results shown here are valid only with the 120mm Martech D712025125Z2N fan we used; if you swap it out for another unit in an effort to produce less noise the thermal values may change.

On the whole, the thermal performance of the nPowerTek NPH-K8 Big heatsink is slightly lower than the stock socket 393 AVC Z7U3301001 heatsink (a difference of 3.2°C) and better than the old standard socket 754 Ajigo MF043-044 heatsink (a difference of 7.2°C).

The TTIC nPowerTek NPH-K8 Big is a good mid-level AMD K8 heatsink, situated almost at the dead center of this reference list in fact. Noise levels are pretty moderate too, and comparable to heatsinks which run warmer. Unfortunately, this version of the product is not socket AM2 compatible.

Given the opportunity, there are three changes FrostyTech would make to this heatsink. First we would alter the aluminum mounting bracket so it is not flush with the base of the copper heat column. Second, those aluminum fins would get a nice nickel plating allowing them to be soldered directly to the copper column, and ensuring a better thermal interface. Lastly, we'd add some texture and geometry to the straight flat aluminum fins to enhance heat transfer. nPowerTek is certainly on the right path here, but the NPH-K8 Big heatsink still feels like it could do well with a few additional refinements....

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 Previous Page °
Heat Sink Review Index  

Table of Contents:

 1:  nPowerTek TTIC NPH-K8 Big Heatsink Review
 2:  Intro to Heat Columns
 3:  360° View - nPowerTek NPH-K8 Big Heatsink
 4:  Acoustic Comparisons and Base Surface Quality
 5: — Final Heatsink Temperature Comparisons

List all nPowerTek heat sinks that Frostytech tested?

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Time stamped: 8:41AM, 11.21.2017
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