Stock AMD & Intel Coolers

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Before thermal testing, we took some basic physical measurements of the product(s) for comparison.

Approximate Physical Measurements
Cooler A10-7860K Stock Cooler Core i7-6700 Stock Cooler
190 g 160 g
Height 54 mm 45 mm
Fin count 39 52 / 104
Fin thickness
0.28 mm varies
Fin spacing
1.67 mm varies

Small Heatsink Comparison:
Average Fin Thickness & Spacing
Fin Thickness
Fin Spacing
Scythe Big Shuriken 2 Rev.B
0.29 mm
1.13 mm
Noctua NH-L9i
0.44 mm
1.16 mm
Scythe Big Shuriken
0.33 mm
1.19 mm
Reeven Vanxie
0.28 mm
1.39 mm
Reeven Arcziel
0.28 mm
1.41 mm
AMD A10-7860K Stock Cooler
0.28 mm
1.67 mm
AMD Wraith
0.29 mm
1.45 mm
Cooler Master GeminII M4
0.29 mm
1.46 mm
Noctua NH-L12
0.49 mm
1.51 mm
Scythe Kozuti
0.12 mm
1.69 mm
Noctua NH-D9L
0.40 mm
1.70 mm
Noctua NH-U12S
0.45 mm
1.72 mm
Scythe Samurai ZZ
0.33 mm
1.74 mm
Phanteks PH-TC14S
0.41 mm
1.76 mm
Thermalright TRUE Spirit 120M
0.43 mm
1.78 mm
Cryorig C1
0.42 mm
1.78 mm
Noctua NH-U9S
0.40 mm
1.80 mm
Prolimatech Panther
0.53 mm
1.80 mm
SilverStone Argon AR02
0.30 mm
1.85 mm
Phanteks PH-TC90LS
0.47 mm
1.90 mm

Intel Heatsink Heatsink Test Platform:

  • Intel Core i5-2400 processor - 3.1 GHz, 45nm, 95W TDP, LGA1155, overclocked/volted to 3.6 GHz/1.300V
  • Intel DP67BG motherboard - P67 chipset, ATX
  • OCZ Platinum Extreme Low Voltage memory - 2 x 2GB, DDR3-1333 in dual channel
  • Asus EAH3450 Silent graphics card
  • Kingston SSDNow V solid-state drive - 30GB, 2.5-inch, SATA 3 Gbps
  • Seasonic X-400 SS-400FL power supply - ATX, 80Plus Gold, passively cooled
  • Noctua NT-H1 thermal interface material

AMD Heatsink Test Platform:

  • AMD A10-6800K APU - 4.1 GHz, 32nm, 100W, FM2 socket
  • Asus F2A85-M Pro motherboard - AMD A85X chipset, microATX
  • Kingston HyperX LoVo memory, 2 x 4GB, DDR3-1600 in dual channel
  • Kingston HyperX 3K solid-state drive - 120GB, 2.5-inch, SATA 6 Gbps
  • Seasonic X-460FL power supply - 460W, ATX, 80Plus Platinum, passively cooled
  • Noctua NT-H1 thermal interface material

The systems are silent under the test conditions, except for the CPU cooling fan(s).

Normally, our reference fans are used whenever possible, the measured details of which are shown below.

Reference Noctua 140mm fan
Anechoic chamber measurements
1250 RPM
28~29 dBA
990 RPM
21 dBA
880 RPM
18 dBA
770 RPM
15~16 dBA
660 RPM
13 dBA

Reference Nexus 120 mm fan
Anechoic chamber measurements
1080 RPM
16 dBA
880 RPM
13 dBA
720 RPM
12 dBA

Reference Nexus 92 mm fan
Anechoic chamber measurements
1470 RPM
17 dBA
1280 RPM
14 dBA
1010 RPM
12 dBA

Measurement and Analysis Tools

  • Extech 380803 AC power analyzer / data logger for measuring AC system power.
  • PC-based spectrum analyzer: SpectraPlus with ACO Pacific mic and M-Audio digital audio interfaces.
  • Anechoic chamber with ambient level of 11 dBA or lower
  • Various other tools for testing fans, as documented in our standard fan testing methodology.
  • SpeedFan, used to monitor the on-chip thermal sensors. The sensors are not calibrated, so results are not universally applicable.
  • Prime95, used to stress the CPU heavily, generating more heat than most real applications. All instances are used to ensure full stress.
  • CPU-Z, used to monitor the CPU speed to determine when overheating occurs.

Noise measurements are made with the fans powered from a separate, fanless system. Load testing was accomplished using Prime95 to stress the processor, and the graph function in SpeedFan was used to ensure that the load temperature is stable for at least ten minutes. The temperature recorded is the highest single core reading. The stock fans were tested at various speeds to represent a good cross-section of airflow and noise performance.

The ambient conditions during testing were 10~11 dBA and 21~23°C.

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