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CPU coolers / Compare

ARCTIC Freezer 36-S vs be quiet! Dark Rock Pro 6

26 of 46 fields differ

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  • 17 different values
  • 9 known for one only
  • 7 the same
  • 13 missing for both

Size, drawn to scale

Front and side.

Weight

0 to 2,500 g

A685g
B1,336g

All 54 fields

Every value links to where we found it.

AARCTIC Freezer 36-S
Bbe quiet! Dark Rock Pro 6

General

9 of 12 differ
Successor
Not available
Not available
Rated TDP (claimed)
Not available

Compatibility

3 of 3 differ
CPU sockets

Heatsink

2 of 3 differ

Liquid cooling

None of 7 known
Radiator size
Not available
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Radiator dimensions
Not available
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Radiator material
Not available
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Tube length
Not available
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Max pump speed
Not available
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Pump power connector
Not available
Not available
VRM fan
Not available
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Fans

2 of 2 differ
Included fans
Bbe quiet! Dark Rock Pro 6
ModelSize (mm)FansMax speed (rpm)Airflow (CFM)Static pressure (mmH₂O)BearingConnector
Silent Wings PWM 120 mm12012,00052.942.5Fluid dynamic (FDB)4-pin PWM
Silent Wings PWM 135 mm13511,90076.592.25Fluid dynamic (FDB)4-pin PWM
Source2Press articlepcgameshardware.de/CPU-Kuehler-Hardware-255512/News/Dark-Rock-Pro-6-Be-Quiet-Release-Preis-kaufen-1530283Read 14 October 2026Spec table with one value per fan in the order 120 mm / 135 mm: 2,000 / 1,900 rpm, airflow 52.94 / 89.95 and 76.59 / 130.13 (CFM / m3/h), 2.5 / 2.25 mmH2O, 4-pin PWM. The same table gives 79.48 / 135.04 CFM / m3/h and 2.48 mmH2O for the single 135 mm fan of the Dark Rock 6. Fluid dynamic bearing is from the other sources. be quiet! gives no per-fan noise, only 32.4 dB(A) for the whole cooler.3Press articlecdrinfo.com/d7/content/be-quiet-dark-rock-pro-6Read 14 October 2026Copy of the maker's spec table. Its airflow row shows only 79.48 / 135.04 (CFM / m3/h), which is the Dark Rock 6 value in PCGH's table of the maker's data. It is not used. Speeds 2000 / 1900 rpm, pressure 2.5 / 2.25 mmH2O, fluid dynamic bearing, 6-pole motor and 4-pin PWM match the other sources.4Reviewaphnetworks.com/reviews/be-quiet-dark-rock-pro-6Read 14 October 2026Copy of the maker's table: Silent Wings PWM, 120 x 120 x 25 and 135 x 135 x 25 mm, 2000 / 1900 rpm, 52.94 CFM and 2.5 mmH2O for the 120 mm fan, fluid dynamic bearing, 4-pin PWM. The 79.48 CFM for the 135 mm fan is not used, see the PCGH note.7Reviewguru3d.com/review/bequiet-dark-rock-pro-6-cpu-cooler-reviewRead 14 October 2026Spec table: 2000 / 1900 rpm, airflow 52.94 / 89.95 CFM, 76.59 / 130.13 m3/h, 2.5 / 2.25 mmH2O (its table mixes the unit labels, the numbers match PCGH's maker table). 120 mm front fan and 135 mm centre fan.8Reviewclub386.com/be-quiet-dark-rock-pro-6-reviewRead 14 October 2026Club386's fan notes: 52.94 CFM for the 120 mm fan and 76.59 CFM for the 135 mm fan. Its speed and pressure labels are swapped between the two fans and are not used.9Reviewenostech.com/be-quiet-dark-rock-pro-6-review-flagship-cooling-solutionRead 14 October 2026The 135 mm fan is rated 1900 rpm, 76.59 CFM and 2.25 mmH2O. The 120 mm fan is rated 2000 rpm and 2.5 mmH2O. The text gives 89.95 for the 120 mm fan with the unit CFM, which is the m3/h figure in the maker's table, and is not used.
Fans
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2

Display and lighting

1 of 7 differ
Lighting standard
Not available
Not available
Screen size
Not available
Not available
Screen resolution
Not available
Not available
Software
Not available
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Needs a USB header
Not available

Measured

3 of 6 differ
Cybenetics THETA, Intel LGA1851
Not available
Not available
Overall performance at 30 dB(A), AM5 (measured)
Overall performance at 30 dB(A), LGA1851 (measured)
Not available
Not available
Thermal tests (measured)
AARCTIC Freezer 36-S
Test CPULoadCPU power (W)Fan settingNoise (dB(A))CPU temperature (°C)Above ambient (°C)
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled175.820 dB(A)2095.1Not available
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled177.225 dB(A)2595.2Not available
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled182.230 dB(A)3095.2Not available
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled184.235 dB(A)3595.2Not available
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled184.9100%39.395.2Not available
AMD Ryzen 9 9950X3DCinebench R23 multi-core, PBO enabled245.1Maximum fan speed47.4Not availableNot available
AMD Ryzen 9 9950X3DCinebench R23 multi-core, motherboard default power limit of about 200 W200Default motherboard fan curveNot available76.554.3
AMD Ryzen 9 9950X3DCinebench R23 multi-core at a 150 W power limit with an RTX 4070 Ti Super drawing 295 W in FurMark150Default motherboard fan curve42.4Not available43.8
Bbe quiet! Dark Rock Pro 6
Test CPULoadCPU power (W)Fan settingNoise (dB(A))CPU temperature (°C)Above ambient (°C)
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled179.420 dB(A)2095Not available
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled180.825 dB(A)2595.1Not available
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled180.730 dB(A)3095.1Not available
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled182.535 dB(A)3595.1Not available
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled183.6100%36.595.1Not available
AMD Ryzen 9 9950X3DCinebench 26 multi-thread, CPU set to 170 W TDP, average core temperature over ambient170600 rpmNot availableNot available64.1
AMD Ryzen 9 9950X3DCinebench 26 multi-thread, CPU set to 170 W TDP, average core temperature over ambient1701,200 rpm30.6Not available51.4
AMD Ryzen 9 9950X3DCinebench 26 multi-thread, CPU set to 170 W TDP, average core temperature over ambient170100% (1,900 / 2,000 rpm)44.5Not available51.2
AMD Ryzen 9 9950X3DCinebench 26 multi-thread, CPU set to 105 W TDP, average core temperature over ambient105600 rpmNot availableNot available46
AMD Ryzen 9 9950X3DCinebench 26 multi-thread, CPU set to 105 W TDP, average core temperature over ambient1051,200 rpm30.6Not available39.3
AMD Ryzen 9 9950X3DCinebench 26 multi-thread, CPU set to 105 W TDP, average core temperature over ambient105100% (1,900 / 2,000 rpm)44.5Not available37.3
AMD Ryzen 9 9950X3DCinebench 26 multi-thread, CPU set to 65 W TDP, average core temperature over ambient65600 rpmNot availableNot available29.2
AMD Ryzen 9 9950X3DCinebench 26 multi-thread, CPU set to 65 W TDP, average core temperature over ambient651,200 rpm30.6Not available23.6
AMD Ryzen 9 9950X3DCinebench 26 multi-thread, CPU set to 65 W TDP, average core temperature over ambient65100% (1,900 / 2,000 rpm)44.5Not available23

Dimensions and weight

4 of 4 differ
Dimensions
Heatsink dimensions
Not available

In the box

1 of 1 differ
In the box
2x AMD Mounting Brackets, 4x AMD Spacers, 4x AMD Screws, 1x Intel Backplate, 4x Intel Screws for backplate, 4x Intel Rubber washers for backplate, 2x Intel Mounting Brackets, 4x Standoff Screws, 1x Thermal Paste, 1x Long Neck Screwdriver, 1x User Guide, 1x Warranty Paper9Reviewenostech.com/be-quiet-dark-rock-pro-6-review-flagship-cooling-solutionRead 14 October 2026Packing and Unboxing list as printed. The Dark Rock 6's AMD offset brackets do not fit the Pro 6.

Warranty

1 of 1 differ

Both are also in the API. Back to all CPU coolers.