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Zalman CNPS8700 LED Low Noise Heatsink Review
Zalman CNPS8700 LED Low Noise Heatsink Review
  87%   
Abstract: Got a noisy computer? If you've finally decided to take some action and replace a loud heatsink for something quieter, and cooler-running, take notice of the Zalman CNPS8700 LED heatsink.

 Manufacturer  Category  Published  Author 
Zalman   Cooling / Heatsinks   Feb 03, 2008   Max Page  

Home > Reviews > Page: Intel LGA775 Final 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)

Xigmatek HDT-S1283 high 16.8 10.7 50.7
Thermalright Ultra 120 17.8 10.6 53.7
3Rsystem Iceage 120 high 18.2 12.1 47.9
Thermalright Ultra 120 Extreme 18.4 11.4 44.5
Coolermaster Hyper 212 19.0 11.8 45.9
Apack Zerotherm BTF92 OC Ed high 19.0 11.2 53.6
Zalman CNPS9700 LED high 19.0 10.4

56.5

Xigmatek HDT-S983 high 19.5 11.8 52.7
Scythe Mugen 19.5 11.4 46.0
Tuniq Tower 120 high 19.6 12.2 51.6
Thermalright Ultra-90 high 19.6 13.0 56.2
Apack Zerotherm Nirvana 120 high 19.8 12.3 49.2
Enzotech Ultra-X high 20.0 8.5 59.1
Zalman CNPS9700NT high 20.3 12.4 52.2
Scythe Infinity SCINF-1000 20.3 12.6 37.8
OCZ Vendetta high 21.3 13.5 52.8
Noctua NH-U12P high

21.3

13.4 40.7
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
Zalman CNPS8700 LED high 23.2 14.1 48.1
Cooljag Falcon 92-AL high 23.2 14.2 52.1
Rosewill RCX-Z3 high 23.3 14.0 58.6
Coolink Silentator high 23.5 16.4 41.2
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
Glacialtech Igloo 5750 PWM high 24.9 14.6 52.3
Asus Arctic Square high 24.9 14.9 44.9
Akasa AK-922 (EVObue) high 25.5 15.4 60.3
Coolermaster Aquagate Mini R80 high 25.7 16.2 59.2
Asus Silent Square EVO high 25.8 15.6 42.8
Glacialtech Igloo 5610 PWM high 25.9 15.9 59.5
Thermalright SI-128SE 26.5 15.2 44.5
Scythe Andy Samuri Master SCASM-1000 26.7 14.2 38.4
Auras SLC-747 high 27.9 25.7 52.2
Auras LPT-700 28.3 16.9 52.2
Thermalfly F1-IACSHA high 29.0 18.3 60.4
nPowertek TTIC NPH1000 29.3 16.8 47.5
Glacialtech Igloo 5710 Silent 29.4 18.0 43.4
Thermalfly I75DUB high 29.5

16.8

68.5
Zalman CNPS9500 AT 29.6 17.3 53.3
Glacialtech Igloo 5750 Silent 29.8 18.5 35.5
Coolermaster Hyper TX2 29.9 18.8 53.7
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

Auras LPT-709 30.1 18.6 43.9
Rosewill RCX-Z2-EX high 30.1 18.7 45.9
nPowertek NPH-775-1 30.1 18.8 50.1
Glacialtech Igloo 5610 Silent 30.4 17.1 44.7
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
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
Scythe Ninja Mini 33.7 19.9 41.7
Thermalright MST-977SLE 33.8 20.0 46.5
Intel Stock Pentium D high 33.8 20.7 47.5
nPowerTek SF775-2 high 34.7 21.1 64.6
Zalman CNPS8700 LED low 34.8 21.0 32.5
Akasa AK-960E 36.1 21.4 56.3
Gigabyte Volar GH-PSV21-FB high 36.3 22.1 56.1
Auras SMF-660 36.4 23.0 43.4
Zalman CNPS7500-Cu LED high 36.4 22.9 50.9
Thermalfly I75DUH 37.8 22.8 48.7
Akasa AK-975CU high 38.4 23.0 47.7
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
Arctic Cooling Alpine 7 Pro high 40.5 23.8 44.1
Intel Stock Core 2 Duo 49.2 29.0 36.7
Glacialtech Igloo 5062 Cu Light 50.6 29.7 45.2
Glacialtech Igloo 5057 E 58.5 36.1 53.4
Asus Triton 75 58.6 16.1 49.6
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.

with a 150w heat load applied by the intel lga775 version of frostytech's synthetic thermal test platform, the Zalman CNPS8700 LED yields a rise above ambient temperature of 23.2°C (48.1 dBA) at the fans' stock speed of 2300RPM. The processor equivalent of this heat load would be an Intel Pentium D / Extreme Edition or Core 2 Quad class CPU. At the much quieter fan speed of 1150RPM, temperatures rise to 34.8°C (32.5 dBA) over ambient.

To measure the effectiveness of the Zalman CNPS8700 LED heatsink on a Intel Core 2 Duo class processor we need to drop the heat load down to about 85W, to represent a stressed dual-core CPU. With 85W heat applied, the Zalman CNPS7800 LED heatsink maintains a 14.1°C rise over ambient temperature at full fan speed, and 21.0°C over ambient at its lowest fan speed. Both are great results.

As a low noise heatsink the Zalman CNPS8700 LED heatsink is very good at what it does - it works well with a reduced air flow.

Where low noise is concerned it's hard to go wrong with the Zalman CNPS8700-Cu LED heatsink, and in this respect its thermal performance is good on the both AMD K8 and Intel LGA775 platforms. There are a few other alternative heatsinks with similar or better temperature results, however many of these coolers are significantly larger than the Zalman CNPS8700 LED heatsink. Where a low profile lower noise heatsink is needed, the Zalman CNPS8700 LED is a great option.

Related Articles:

For more reviews on the latest heatsinks and cooling solutions, rely on FrostyTech's inventory of 400+ heatsink reviews. Here are a few other articles that you might enjoy as well...

- Thermalright Ultra-90 Low Noise Heatsink Review
- 3RSystem Iceage 120 Exposed Heatpipe Base Heatsink Review
- Xigmatek HDT-S963 Exposed Heatpipe Base Heatsink Review
- nPowertek NPH-1000 Heatsink
- Intel Stock Core 2 Duo Radial Curved Bifurcated Fin Heatsink Review
- Zalman CNPS7500-Cu LED Low Noise Heatsink
- Evercool Buffalo HPFA-10025 AMD Heatsink Review
- Scythe Mine Rev.B SCMN-1100 Heatsink Review
- Akasa AK-876 AMD Athlon64 Heatsink Review
- Scythe Katana II SCKTN-2000 Heatsink Review
- 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:  Zalman CNPS8700 LED Low Noise Heatsink Review
 2:  360° View - Zalman CNPS8700 LED 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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