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Zalman CNPS7700-Cu Low Noise Heatsink Review
Zalman CNPS7700-Cu Low Noise Heatsink Review
  82%   
Abstract: The Zalman CNPS7700-Cu is an extension of the CNPS7000-Cu series, though it is about 30mm larger in total diameter, and weighs in at a hefty 918 grams.

 Company link  Category  Published  Author 
Zalman   Cooling / Heatsinks   Oct 20, 2006   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
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
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
Zalman CNPS7700-Cu low 34.0 35.1
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
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 Zalman CNPS7700-Cu heatsink yields a good 34.0°C rise above ambient temperature at its lowest and quietest fan speed, with only a whisper of 35.1 dBA noise. When we turn the dial of the Fan Mate2 all the way up, the CNPS7700-Cu's 120mm fan spins away at an even 2000RPM. This is known as the "low-noise" or "normal" fan speed mode, and in this setting the CNPU7700-Cu yields a rise above ambient temperature of 27.0°C, with 50.7 dBA noise. A very good thermal result by any standard, but not as low as units by Noctua, Thermalright, Apack, or Arctic Cooling yield for a similar noise class.

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)

Apack Zerotherm BTF90 21.8 12.7 52.1
Apack Zerotherm BTF80 22.8 13.9 51.9
Thermalfly F1-IACSHA high 29.0 18.3 60.4
Sunon Waturbo 30.6 18.3 57.5
Zalman CNPS7700-Cu high 32.9 19.7 50.7
Thermalfly F1-IACSHA low 36.0 28.3 35.4
Zalman CNPS7700-Cu low 42.6 24.7 35.1
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.

As a low noise heatsink for the socket 939 AMD Athlon64 platform the Zalman CNPS7700-Cu heatsink is very good at what it does. Only the Zalman CNPS9500 LED, Verax Helado, and a heatsink Frostytech will be reviewing shortly from a company called Thermalfly post better thermal results with similarly low noise outputs (36.0 dBA, 36.2 dBA and 35.4 dBA respectively).

On the socket 775 Intel platform, the Zalman CNPS7700-Cu is equally well positioned as a low noise heatsink, although the design is clearly starting to give way to heatpipe-based models.

However, as low noise heatsinks go, the Zalman CNPS7700-Cu is getting a little long in the tooth. Newer models like the Zalman CNPS9500-AM2 have surpassed its capabilities, but for the right price the CNPS7700-Cu still offers a lot.... and quietly too.

Related Articles:

For more reviews on the latest heatsinks and cooling solutions, rely on FrostyTech's inventory of 350+ heatsink reviews. Here are a few other articles that you might enjoy as well...

- Gigabyte 3D Rocket II Cooler GH-PCU23-VE Heatsink
- Thermalright Ultra-120 Low Noise Heatsink
- Zalman CNPS8000 Low Noise Heatsink Review
- OCZ Tempest Heatsink Review
- Verax Helado PWM-T Low Noise Heatsink
- Apack ZeroTherm BTF80 Heatsink Review
- Apack ZeroTherm BTF90 Copper Heatsink Review
- Verax Quattro 1 Ultra-Quiet Heatsink Review
- AVC Z7U7414001 Athlon64 Socket AM2 / 939 Heatsink Review
- Cooljag SFO-Q Socket AM2 / 939 Heatsink Review
- Zalman CNPS9500-AM2 Socket AM2 Low Noise Heatsink
- nPowertek TTIC NPH K8-1 Heatsink Review
- Spire VertiCool II SP601B3 AMD Athlon64 Heatsink
- Scythe Samurai SCSM-1000 Heatsink Review
- Gigabyte 3D Rocket Cooler-Pro PCU22-VG Heatsink Review
- Scythe Shogun Low Noise Heatsink Review



 Previous Page °
Heat Sink Review Index  

Table of Contents:

 1:  Zalman CNPS7700-Cu Low Noise Heatsink Review
 2:  360° View - Zalman CNPS7700-Cu Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4: — Final Heatsink Temperature Comparisons

List all Zalman heat sinks that Frostytech tested?

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