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Akasa EVO 120 AK-920 Low Noise Heatsink Review
Akasa EVO 120 AK-920 Low Noise Heatsink Review
  88%   
Abstract: The new, 2007 model Akasa EVO 120 improves on these shortcomings with a stocky copper base, and three chunky 8mm diameter heatpipes.

 Manufacturer  Category  Published  Author 
Akasa   Cooling / Heatsinks   Jan 31, 2007   Max Page  

Home > Reviews > Page: Intel 775 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
Akasa AK-920 high 24.3 14.1 52.9
Thermalfly F1-IACSHA high 29.0 18.3 60.4
Akasa AK-920 low 29.0 17.6 37.6
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
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
Intel Stock Pentium D low 40.3 23.9 40.5
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.

The heat output from Intel processors varies widely between single and multi-core processors, so we've settled on two values which represent the upper limit (150W and 85W) of both existing CPU families.

With a 150W heat load applied by the Intel LGA775 version of FrostyTech's synthetic thermal test platform, the Akasa EVO 120 heatsink maintains a excellent rise above ambient temperature of 24.3°C. To achieve this result, there was 52.9 dBA noise from the 120mm fan spinning at its full speed of 2000RPM. The CPU equivalents of this test would be an Intel Pentium D / Extreme Edition or Core 2 Quad class chip. At the much quieter fan speed of 1000RPM, the synthetic CPU temperature rose by only a few degrees to 29.0°C (37.6 dBA) over ambient.

The Akasa EVO 120 heatsink was next tested with the reduced heat load of 85W. In this case the heatsink produced a 14.1°C rise over ambient at full fan speed. When the fan speed is reduced to quiet mode (1000RPM), the EVO 120 heatsink yields a temperature of 17.6°C over ambient.

On the whole, the thermal performance of the Akasa EVO 120 heatsink is excellent. This is a very capable low noise heatsink when running with a reduced fan speed in particular. Thermal performance increases when the fan speed is set at default setting naturally, but under these conditions the Akasa EVO 120 heatsink is somewhat audible, with a noise level of 52.9 dBA. No matter how you cut it though, the Akasa EVO 120 heatsink is a very competent choice for Intel socket 775 and AMD Athlon64 platforms (939/AM2).

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 Previous Page ° Heat Sink Review Index  

Table of Contents:

 1:  Akasa EVO 120 AK-920 Low Noise Heatsink Review
 2:  360° View - Akasa EVO 120 heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4:  K8 AMD Heatsink Temperature Comparisons
 5: — Intel 775 Heatsink Temperature Comparisons

List all Akasa heat sinks that Frostytech tested?

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