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Akasa AK-965 Intel Core 2 Duo Heatsink Review
Akasa AK-965 Intel Core 2 Duo Heatsink Review
  84%   
Abstract: Akasa's AK-965 heatsink utilizes a 95mm PWM fan spins only as fast as needed to achieve good temperature control, and works well at moving air relatively quietly through the aluminum fins.

 Company link  Category  Published  Author 
Akasa   Cooling / Heatsinks   Jul 01, 2007   Max Page  
Home > Reviews > Page Title: Intel 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

Thermalright Ultra-90 high 19.6 13.0 56.2
Enzotech Ultra-X high 20.0 8.5 59.1
Apack Zerotherm BTF90 21.8 12.7 52.1
Xigmatek HDT-S963 high 21.9 13.7 50.2
Akasa AK-965 high 22.2 13.8 48.1
Apack Zerotherm BTF80 22.8 13.9 51.9
Cooljag Falcon 92-AL high 23.2 14.2 52.1
Rosewill RCX-Z3 high 23.3 14.0 58.6
Scythe Mine Rev. B 23.6 15.0 36.8
Cooljag Falcon 92-Cu high 23.6 14.8 52.8
Akasa AK-920 high 24.3 14.1 52.9
Asus Arctic Square high 24.9 14.9 44.9
Akasa AK-922 (EVObue) high 25.5 15.4 60.3
Thermalfly F1-IACSHA high 29.0 18.3 60.4
Thermalfly I75DUB high 29.5

16.8

68.5
Zalman CNPS9500 AT 29.6 17.3 53.3
Alpha Novatech PRE9060M92P high 29.9 18.5 51.5
Scythe Kama Cross 30.0 18.8 40.0
Akasa AK-961 30.0 18.7

60.7

Rosewill RCX-Z2-EX high 30.1 18.7 45.9
nPowertek NPH-775-1 30.1 18.8 50.1
Sunon Waturbo 30.6 18.3 57.5
Akasa AK-965 low 31.4 19.8 34.0
Apack CF800 high 31.4 20.7 48.4
Thermaltake Jungle512 high 31.6 20.4 60.8
Coolage Frozen Orb F0-Z924AL high 32.0 19.9 48.9
Xigmatek AIO-S80DP high 32.4 21.4 55.0
Scythe Katana II 32.5 18.6 37.9
Rosewill RCX-Z2

32.6

19.3 59.9
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
Akasa AK-960E 36.1 21.4 56.3
Thermalfly I75DUH 37.8 22.8 48.7
Cooljag OAK-H high 38.5 22.9 55.7
Cooljag OAK-H2 high 38.6 24.1 55.6
LS Cable SHS-T700 38.7 22.8 48.5
Intel Stock Pentium D low 40.3 23.9 40.5
Intel Stock Core 2 Duo 49.2 29.0 36.7
Spire Fourier IV SP607B3-C 63.6 18.7 60.2
Cooljag OAK-H low 95.3 54.5 29.5
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.

Frostytech tests heatsinks with two thermal values that represent the upper limits of single and multi-core Intel processor on the market today. With a 150W heat load applied by the Intel LGA775 version of FrostyTech's synthetic thermal test platform, the Akasa AK-965 heatsink yielded a rise above ambient temperature of 22.2°C (48.1dBA) at the fans' normal speed of 2500RPM. The CPU equivalent of this test would be an Intel Core 2 Quad, Pentium D/Extreme Edition class processor.

The speed of the 95mm PWM fan on the Akasa AK-965 was then reduced to ~600RPM, and this time around the the test temperature held steady at 31.4°C over ambient. Noise levels fell to a very quiet 34.0dBA.

Next, the Akasa AK-965 heatsink was tested on the synthetic thermal test platform with an 85W heat load; akin to a Core 2 Duo processor. This resulted in a very nice result of 13.8°C over ambient at default fan speed, and 19.8°C at a reduced fan speed.

When operated with its fan at full speed the Akasa AK-965 heatsink is a great performer. In fact, it places within the top 10 positions in the reference list above, while generating less than 50 dBA noise! Akasa have built a great Intel LGA775 heatsink here, so if you're shopping around for a new Core 2 Duo heatsink be sure to include the AK-965 on your short list of choices.

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- Thermalright Ultra-90 Low Noise Heatsink Review
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- Akasa Evo Blue AK-922 Heatsink Review
- Coolage Freezer Orb F0-Z924AL Intel Heatsink Review



 Previous Page °
Heat Sink Review Index  

Table of Contents:

 1:  Akasa AK-965 Intel Core 2 Duo Heatsink Review
 2:  360° View - Akasa AK-965 heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4: — Intel Heatsink Temperature Comparisons

List all Akasa heat sinks that Frostytech tested?

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