Product comparison · 2 computer cooling systems

be quiet! Dark Rock 2 vs be quiet! Dark Rock Pro 2

23specifications compared
11differ
12identical
6known for one product only

Key differences

Rotational speed (max)
- Dark Rock 2:1300 RPM
- Dark Rock Pro 2:1700 RPM
Noise level (low speed)
- Dark Rock 2:8.7 dB
- Dark Rock Pro 2:13.50 dB
Noise level (high speed)
- Dark Rock 2:21.2 dB
- Dark Rock Pro 2:26.40 dB
Maximum airflow
- Dark Rock 2:57.9 cfm
- Dark Rock Pro 2:113.8 cfm
Airflow
- Dark Rock 2:96.8 m³/h
- Dark Rock Pro 2:93.3 m³/h
Maximum air pressure
- Dark Rock 2:1.64 mmH2O
- Dark Rock Pro 2:2.1 mmH2O
Thermal Design Power (TDP)
- Dark Rock 2:180 W
- Dark Rock Pro 2:220 W
Width
- Dark Rock 2:97 mm
- Dark Rock Pro 2:147 mm

Side by side

Differences highlightedShow differences only

Comparison of Dark Rock 2, Dark Rock Pro 2
29 specifications	A be quiet! Dark Rock 2 View product	B be quiet! Dark Rock Pro 2 View product
Performance6 differ
Suitable location	Processor	Processor
Type	Cooler	Cooler
Fan diameter	13.5 cm	13.5 cm
Supported processor sockets	Socket 754, Socket 939, Socket 940	Socket 754, Socket 939, Socket 940
Rotational speed (min)Known for one	Unknown — not stated by the source	1500 RPM
Rotational speed (max)Differs	1300 RPM	1700 RPM
Noise level (low speed)Differs	8.7 dB	13.50 dB
Noise level (high speed)Differs	21.2 dB	26.40 dB
Minimum airflow (imperial)Known for one	Unknown — not stated by the source	67.8 cfm
Maximum airflowDiffers	57.9 cfm	113.8 cfm
AirflowDiffers	96.8 m³/h	93.3 m³/h
Minimum air pressureKnown for one	Unknown — not stated by the source	1.82 mmH2O
Maximum air pressureDiffers	1.64 mmH2O	2.1 mmH2O
Mean time between failures (MTBF)	300000 h	300000 h
Designidentical
Product colour	Black	Black
Number of fansKnown for one	Unknown — not stated by the source	2 fan(s)
Power1 differ
Power consumption (typical)	2.64 W	2.64 W
Voltage	12 V	12 V
Rated current	0.25 A	0.25 A
Thermal Design Power (TDP)Differs	180 W	220 W
Weight & dimensions2 differ
WidthDiffers	97 mm	147 mm
Depth	138 mm	138 mm
Height	166 mm	166 mm
WeightDiffers	860 g	1.25 kg
Fan dimensions (W x D x H)Known for one	135 x 135 x 25 mm	Unknown — not stated by the source
Cable lengthKnown for one	0.2 m	Unknown — not stated by the source
Technical detailsidentical
Bearing technology	FDB	FDB
Other features2 differ
Heatsink dimensions (W x D x H)Differs	96 x 166 x 95 mm	124 x 166 x 122 mm
Connector(s)Differs	4p PWM	4-pin PWM

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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