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be quiet! · Air · 154 mm tall

be quiet! Pure Rock 3 LX

1 fan · 31.2 dBA · RGB

Performance: 75%
Perf / price: 132
Acoustics: 61
Amazon: $25

View be quiet! Pure Rock 3 LX Gallery in high resolution

Available on Amazon Updated Aug 30, 2026 Prime FBA

Performance74.5%

Performance / price131.6

Acoustics60.9

$25 on Amazon Cooler table Compare this cooler

Check this cooler in a buildSelect a CPU and case first so socket, height, and radiator support can be evaluated. Start with the CPU

Written analysis

be quiet! Pure Rock 3 LX at a glance

The be quiet! Pure Rock 3 LX is a Air cooler listed as 154 mm tall. It is listed with 1 120 mm fan. Manufacturer-rated thermal capacity is 190 W.

Review-derived relative cooling performance is 74.5%. Recorded noise is 31.2 dBA, for an acoustics score of 60.9. Airflow is listed at 59.6 CFM. Warranty is 3 years.

Best fit: Compact or value builds where clearance, noise, and price outweigh peak thermal headroom.

Fitment and sockets

Tower height is 154 mm — check case cooler clearance before buying. Socket compatibility includes 1851, 1700 , 1200, 1150, 1151, 1155, AM4, AM5. CPU block / cold plate: Copper.

Current value

At $25, performance / price is 131.6. Compare nearby coolers of the same type below; quieter acoustics and fitment can outweigh a small score gap.

Cooler data

Full specifications

Cooling type, fitment, sockets, fans, acoustics, features, and value in one technical sheet.

General

Manufacturer: be quiet!
Cooler: be quiet! Pure Rock 3 LX
Warranty: 3 years
Launch price: —
Amazon price: $25
Amazon availability: Available
Price updated: Aug 30, 2026

Cooling type & fit

Type: Air
Size class: 154 mm tall
Height: 154 mm
Cooler dimensions: 46 x 124 x 154
TDP rating: 190 W

Value

Amazon price: $25
Relative performance: 74.5%
Performance / price: 131.6
Acoustics: 60.9

Sockets & block

Socket compatibility: 1851, 1700 , 1200, 1150, 1151, 1155, AM4, AM5
CPU block: Copper

Fans & acoustics

Fan size: 120 mm
Fan count: 1
Fan speed: 2000 rpm
Noise: 31.2 dBA
Airflow: 59.6 CFM
Acoustics score: 60.9

Features

RGB lighting: Yes
Thermal paste included: No
Display: 0
Color: Black

Amazon

Price history

Nearby performance

Similar coolers

Coolers close to be quiet! Pure Rock 3 LX on relative performance. Open the cooler table to sort, filter, and compare side by side.

GAMDIAS_AIR001 GAMDIAS Boreas P2-62D Air · 160 mm tall

73.0%

48.7

59.4

$66

Thermalright Thermalright Assassin X120 Refined SE Air · 154 mm tall

74.0%

202.1

74.2

$16

Thermalright Thermalright Assassin X 120R Digital ARGB Black Air · 154 mm tall

74.0%

142.2

74.2

$23

be quiet! be quiet! Pure Rock 3 Black Air · 154 mm tall

74.5%

86.5

60.9

$38

be quiet! be quiet! Pure Rock 3 LX This cooler

74.5%

131.6

60.9

$25

Ocypus Ocypus Iota A40 Air · 157 mm tall

75.0%

165.1

65.5

$20

Scythe Scythe Fuma 3 Air · 154 mm tall

76.0%

66.9

66.4

$50

GAMDIAS GAMDIAS BOREAS P1-720 Dual Tower Air · 162 mm tall

76.0%

37.2

57.6

$90

Noctua Noctua NH-D15S Air · 165 mm tall

77.0%

30.8

99.0

$110

Compare these in the cooler table

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Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

Pure Rock 3 LX is aimed at consumer PCs. With 190 W TDP it offers an excellent cooling capacity for gaming, multimedia and graphics systems, as well as mainstream or entry level computers of all types. The performance is further increased by funnel-shaped air outlets on the Light Wings LX 120mm PWM fans, which increases airflow over the fins. In addition, the fan blades are optimized for maximum airflow, making this fan the ideal match for Pure Rock 3 LX.

16 LEDs are located inside the hub of the impeller of the Light Wings LX 120mm PWM and shine outwards onto the frosted fan blades. This creates an unmistakable look and enables you to express your creativity.

Pure Rock 3 LX is equipped with 4 black 6mm heat pipes, matching the color of the heat sink. The heat pipes are key to the cooler’s great cooling performance, because they transport the heat to optimum locations on the cooling fins. They do so with minimal bends and high bending radius, to maintain the performance of each heat pipe as good as possible.

The Pure Rock 3 LX’ slim design increases RAM and VRM cooler compatibility significantly and enables limitless memory height. Thanks to its compact construction Pure Rock 3 LX is the perfect choice for PC cases that have limited space. Notwithstanding, it allows full configuration of RAM banks.

Installation is easier than ever with the Pure Rock 3 LX. Thanks to its convenient, preinstalled mounting bridge plus screws and a firm yet gentle fixing method, cooler attachment is a breeze. Users of an AM5 CPU by AMD can benefit from an offset mounting to center the heat pipes above the hot spots of their CPU.