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Zalman CNPS9700 LED Low Noise Heatsink Review
Zalman CNPS9700 LED Low Noise Heatsink Review
  95%   
Abstract: Now, there's no point in dancing around the fact that Zalman's CNPS9700 LED is the best socket 775 heatsink FrostyTech has tested to date.

 Manufacturer  Category  Published  Author 
Zalman   Cooling / Heatsinks   Nov 29, 2006   Max Page  

Home > Reviews > Page: AMD K8 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
Zalman CNPS9700 LED low 22.5 37.5
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
Zalman CNPS9500 AM2 low 29.2 36.0
Vantec Mach1 high 29.2 56.9
AVC Z7U7414001 (stock AM2) low 29.6 48.1
CoolJag SFO-D(18SC) 29.6 64.0
Zalman CNPS9500 LED low 29.7 36.2
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
Zalman CNPS7700-Cu LED low 35.6 34.9
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
Zalman CNPS8000 low 39.0 36.4
Akasa AK-860SF 39.4 45.2
Evercool K802-715 42.1 51.5
Spire SP741B3 43.2

45.6

Zalman CNPS7000B-CU low 44.9 33.2
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 AMD K8 version of the FrostyTech synthetic thermal test platform, the Zalman CNPS9700 LED heatsink yields an excellent rise above ambient temperature result of just 16.5°C at its stock fan speed! That is the second best test result of all the heatsinks in this AMD K8 heatsink reference list!

Considering that the CNPS9700 LED maintains this low a temperature with a noise output of 56.5 dBA, that's quite competitive with the Thermalright Ultra-120 heatsinks' results. When we turn the dial of the Fanmate2 all the down, so the 110mm fan is spinning at 1250RPM, the heatsink maintains a remarkably low temperature of just 22.5°C above ambient - really amazing when you consider the next quietest heatsink is the Verax Helado. At this lower fan speed, the CNPS9700 LED is whisper quiet with 37.5 dBA noise.

The Zalman CNPS9700 LED heatsink is very well suited as a low noise, and high performance heatsink for the K8 AMD platform. At its default fan speed, this Zalman heatsink is among the best heatsinks FrostyTech has tested to date.

The results for this heatsink on the Intel LGA775 version of FrostyTech's synthetic thermal test platform are up next. 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 of both existing CPU families. That's next...

 Previous Page ° ° Next Page 

Table of Contents:

 1:  Zalman CNPS9700 LED Low Noise Heatsink Review
 2:  360° View - Zalman CNPS9700 LED Low Noise Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4: — AMD K8 Final Heatsink Temperature Comparisons
 5:  Intel LGA775 Final Heatsink Temperature Comparisons

List all Zalman heat sinks that Frostytech tested?

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