CPU coolers / Compare

be quiet! Dark Rock 6 vs Noctua NH-U9S

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Product A: be quiet!

Dark Rock 6

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B

Product B: Noctua

NH-U9S

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Only differences

Abe quiet! Dark Rock 6

BNoctua NH-U9S

General

6 of 12 differ

Series

Dark Rock5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Review text: the standard Dark Rock 6 next to the Dark Rock Pro 6.

NH-U91Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026The text says the NH-U9S stems from Noctua's NH-U9 series.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

BK0465Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: article number BK046.11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Model BK046.

NH-U9S, NH-U9S chromax.black2Retailer pagequietpc.com/nh-u9sRead 15 October 2026Noctua gives no separate model codes. The model names are NH-U9S and NH-U9S chromax.black.

GTIN / EAN

42600521931435Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: EAN code 4260052193143.

4716123315575, 90100180002522Retailer pagequietpc.com/nh-u9sRead 15 October 2026EAN barcode 4716123315575 for the NH-U9S. The chromax.black EAN is on its own page.3Retailer pagequietpc.com/nh-u9s-ch-bkRead 15 October 2026EAN barcode 9010018000252 for the NH-U9S chromax.black. Assmann's product PDF carries the same EAN.4Maker spec sheet (PDF)cdn.inet.se/pdf/6308879_0.pdfRead 15 October 2026Noctua datasheet copy hosted by inet.se: EAN-No. 4716123315575 and UPC 842431012463.6Retailer pageassmann.com/product-pdf/aat/4716123315575Read 15 October 2026EAN 4716123315575.7Retailer pageassmann.com/product-pdf/aat/9010018000252Read 15 October 2026EAN 9010018000252.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

5 May 20264Press articlegeektopia.es/es/technology/2026/05/05/noticias/be-quiet-presenta-las-refrigeraciones-dark-rock-6-y-dark-rock-pro-6.htmlRead 15 October 2026Launch news of 5 May 2026 for the Dark Rock 6 and Dark Rock Pro 6. The CES 2026 showing was a preview.

12 November 20148Press articlepcper.com/2014/11/noctua-announces-three-new-92mm-cpu-coolers-with-pwm-fansRead 15 October 2026Noctua announced the NH-U9S on 12 November 2014 (Vienna press release).

Status

Available5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Published 26 May 2026 as a review of the product on sale.11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026On sale at LDLC at EUR 89.95 on the access date.

Available15Retailer pageldlc.com/en/product/PB00181734.htmlRead 15 October 2026Listed as in stock on the access date. LDLC first referenced the product on 19 Jan 2015.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$109.93Press releasecdrinfo.com/d7/content/be-quiet-dark-rock-pro-6Read 15 October 2026Recommended retail prices EUR 89.90 / $109.90 / GBP 64.99 for the Dark Rock 6. US recommended prices exclude tax.5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table MSRP $109.90.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Price line: $109.90.10Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 2026MSRP US $109.90.

$59.98Press articlepcper.com/2014/11/noctua-announces-three-new-92mm-cpu-coolers-with-pwm-fansRead 15 October 2026Noctua's suggested retail price for the NH-U9S is USD 59.90. Tax treatment is not stated.9Reviewguru3d.com/review/noctua-nh-d9l-and-nh-u9s-cpu-cooler-review/page-11Read 15 October 2026The same pricing section: USD 59.90.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€89.92Press articlepcgameshardware.de/CPU-Kuehler-Hardware-255512/News/Dark-Rock-Pro-6-Be-Quiet-Release-Preis-kaufen-1530283Read 15 October 2026Recommended price 89.90 euro for the Dark Rock 6 (German article, VAT included).3Press releasecdrinfo.com/d7/content/be-quiet-dark-rock-pro-6Read 15 October 2026EUR 89.90.5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table MSRP EUR 89.90.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Price line: EUR 89.90.10Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 2026MSRP EUR 89.90.

€54.94Maker spec sheet (PDF)cdn.inet.se/pdf/6308879_0.pdfRead 15 October 2026MSPR 54.90 EUR on the datasheet. Tax treatment is not stated.9Reviewguru3d.com/review/noctua-nh-d9l-and-nh-u9s-cpu-cooler-review/page-11Read 15 October 2026Pricing section: manufacturer suggested retail price NH-U9S EUR 54.90 / USD 59.90. HEXUS prints the same figures from the press release. Whether VAT is included is not stated.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Black11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Spec table: Black.

Brown, Black3Retailer pagequietpc.com/nh-u9s-ch-bkRead 15 October 2026The text calls it an all-black version with a black coated heatsink, black fan, black fan clips and black mounting parts.

Cooler typeiAir is a heatsink with fans that sits on the CPU. AIO liquid is a sealed all-in-one liquid cooler with a pump block, tubes and a radiator.

Air5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026

Air1Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Air cooler: a heatsink with one NF-A9 fan.

Air cooler layoutiAir coolers only. Top-flow covers low-profile coolers whose fan blows down onto the board.

Single tower5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: single-tower air cooler.7Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6/2Read 15 October 2026Single stack of fins on a single-tower heatsink with one 135 mm fan.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Review text: no dual-tower design, a single stack of heatsink fins.11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Spec table: Dual tower No, Top Flow No, cooling type ventirad.

Single tower13Reviewenostech.com/noctua-nh-u9s-chromax-black-cooler-reviewRead 15 October 2026Review of the chromax.black: a single-tower compact cooler with 92 mm sizing.

Rated TDP (claimed)iThe heat load the maker says the cooler handles. Makers do not share one test method, so this is not a measured result. A maker's maximum heat dissipation power counts. Check the maker's CPU compatibility page too.

220W2Press articlepcgameshardware.de/CPU-Kuehler-Hardware-255512/News/Dark-Rock-Pro-6-Be-Quiet-Release-Preis-kaufen-1530283Read 15 October 2026Maximum cooling capacity 220 W TDP.5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: 220 W TDP.6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 202610Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 2026Rated for 220 W thermal power dissipation.11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Max CPU TDP 220 W.

Not available

Base materialiThe surface that touches the CPU: the heatsink base or the AIO cold plate. Plating counts, so nickel-plated copper is not copper. Direct-touch heat pipes are the contact surface, so they count as copper unless plating is stated. The direct-contact heat pipes field records the design.

Nickel-plated copper5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: liquid metal compatibility, nickel-plated base. Review text: nickel-plated copper base.6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 2026Maker's table: base material copper / nickel plating.7Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6/2Read 15 October 2026The base and heat pipes are copper and the copper base is covered with electroplated nickel.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026The contact plate is nickel-coated so liquid metal paste can be used.10Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 2026Nickel-plated copper base, safe with liquid metal.11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Feature text copied from the maker: nickel-plated base, compatible with liquid metal thermal pastes. Six copper heat pipes and aluminium fins.

Nickel-plated copper1Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Material: copper (base and heat-pipes), aluminium (cooling fins), soldered joints and nickel plating. Guru3D and Relaxedtech state the base is nickel-plated copper.10Reviewguru3d.com/review/noctua-nh-d9l-and-nh-u9s-cpu-cooler-review/page-4Read 15 October 2026Review text: an all copper nickel plated base tied to five heatpipes.12Reviewrelaxedtech.com/reviews/noctua/nh-u9s/1Read 15 October 2026The nickel plated copper base plate measures 40 x 38 mm and is 4.5 mm thick.

Thermal pasteiPre-applied means paste is already on the base or cold plate. Included means a separate tube or syringe in the box.

Included6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 2026Maker's table: thermal grease included. The review shows a small tube of thermal grease.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026A small tube of thermal compound is in the box. The cooler has no pre-printed paste on the contact plate.

Included1Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Scope of delivery: NT-H1 high-grade thermal compound, a tube in the box.

Compatibility

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CPU socketsiSockets the maker lists as supported in its spec table, compatibility list or guide, written as cpu_socket writes them, e.g. AM5 or LGA1851. List each socket on its own, so LGA115x becomes LGA1150, LGA1151, LGA1155 and LGA1156. When the maker names the sockets of such a family, list only the ones it names. A socket that needs a separately sold or requested mounting kit is left out. A new socket that the maker lists with no extra kit counts. LGA2011-v3 and 2011(V3) are written LGA2011-3. Threadripper sockets use AMD's names, so TR4 is written sTR4 and TR5 is written sTR5. sTRX4 and sWRX8 are sockets of their own.

AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1155, LGA1151, LGA11502Press articlepcgameshardware.de/CPU-Kuehler-Hardware-255512/News/Dark-Rock-Pro-6-Be-Quiet-Release-Preis-kaufen-1530283Read 15 October 2026Intel 1851 / 1700 / 1200 / 1150 / 1151 / 1155 and AMD AM5 / AM4. The maker lists no LGA1156.5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: Intel 1851 / 1700 / 1200 / 1150 / 1151 / 1155, AMD AM5 / AM4.6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 20269Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Spec table: Intel LGA1851, LGA1700, LGA1200, LGA115x and AMD AM4, AM5. The maker's own list names LGA1150, LGA1151 and LGA1155.10Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 2026Intel LGA1150/1151/1155/1200/1700 and AMD AM4 and AM5. The review does not mention LGA1851.

AM5, AM4, LGA1954, LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA11501Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Copy of Noctua's spec table: Intel LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA1150 and AMD AM5, AM4, valid for coolers purchased since Q4 2021. Older tables and the datasheet copies (Assmann, inet.se) list LGA2011, AM3 and others with a backplate, which are not in the current table. LGA1954 comes from the Club386 source.2Retailer pagequietpc.com/nh-u9sRead 15 October 2026Spec table: Intel LGA1851, LGA1700, LGA1200, LGA1150, LGA1151, LGA1155, LGA1156 and AMD AM5, AM4.15Retailer pageldlc.com/en/product/PB00181734.htmlRead 15 October 2026Processor support lists AMD AM4 and AM5 and Intel 1150, 1151, 1155, 1156, 1200, 1700 and 1851.16Press articleclub386.comRead 15 October 2026Article of 2025-11-27 quoting Noctua's FAQ: all Noctua CPU coolers compatible with LGA1851 and LGA1700 are also compatible with Intel's LGA1954, and no additional mounting parts are needed. The NH-U9S is listed for LGA1851 and LGA1700, so LGA1954 is stored.

RAM height clearanceiAir coolers only. The tallest memory module that fits under the cooler with all included fans in their standard position. When the maker gives different values per socket, store the lowest and name the others in the source note. A heatsink that does not reach over the memory slots has no height limit, so the field is left out and the maker's statement goes in the source note.

Not available

Not available

Offset mountingiThe included mount can shift the base or cold plate off the socket centre, for example toward the AM5 hotspot. An asymmetric heatsink on a centred base does not count.

Yes8Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6/3Read 15 October 2026Mounting bars have two positions marked 0 and 8. The user manual calls 0 the standard position and the offset 8 position the one for maximum cooling on AMD Ryzen 3000, 5000, 7000 and 9000. The reviewer found his Ryzen 7 9700X ran cooler in the standard position.10Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 2026AM5 mounting brackets give an offset of 8 mm: each bracket has holes marked 0 and 8, and 8 covers the CPU hotspot best.

Not available

Heatsink

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Heat pipesiAir coolers only. Number of heat pipes. A U-shaped pipe with two ends in the fins counts as one. A T-shaped pipe with three ends, such as Cooler Master's 3DHP, also counts as one. The maker's count wins over a review or Cybenetics count.

65Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: 6 heat pipes of 6 mm.6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 20267Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6/2Read 15 October 2026Six continuous U-shaped heat pipes lead away from the contact plate and split into two fin stacks. The reviewer counts twelve pipe ends, which is six pipes here.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Spec table: 6 x 6 mm heat pipes.10Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 2026Six copper heat pipes of 6 mm, 51 fins.11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Feature text: 6 copper heat pipes.

58Press articlepcper.com/2014/11/noctua-announces-three-new-92mm-cpu-coolers-with-pwm-fansRead 15 October 2026The NH-U9S has an asymmetrical design with 5 heatpipes.10Reviewguru3d.com/review/noctua-nh-d9l-and-nh-u9s-cpu-cooler-review/page-4Read 15 October 2026The base is tied to five heatpipes.12Reviewrelaxedtech.com/reviews/noctua/nh-u9s/1Read 15 October 2026Five heatpipes of 6 mm.

Heat pipe diameteriAir coolers only. Outer diameter, such as 6 or 8.

6mm5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 20266Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 20269Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026

6mm12Reviewrelaxedtech.com/reviews/noctua/nh-u9s/1Read 15 October 2026Review of the NH-U9S: the NH-U9B SE2 had four 6mm heatpipes while the NH-U9S has five 6mm heatpipes.13Reviewenostech.com/noctua-nh-u9s-chromax-black-cooler-reviewRead 15 October 2026The chromax.black has 5x 6 mm copper heat pipes, the same heatsink as the brown model.

Direct-contact heat pipesiAir coolers only. The heat pipes touch the CPU directly instead of sitting in a solid base plate.

No7Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6/2Read 15 October 2026All heat pipes are soldered to the base, so they do not touch the CPU directly.

No10Reviewguru3d.com/review/noctua-nh-d9l-and-nh-u9s-cpu-cooler-review/page-4Read 15 October 2026The base is a plated copper plate tied to the heatpipes. No direct-touch pipes are described. Relaxedtech measures the base plate at 4.5 mm thick.12Reviewrelaxedtech.com/reviews/noctua/nh-u9s/1Read 15 October 2026The review describes a separate copper base plate with soldered joints, and no direct-touch pipes.

Liquid cooling

None of 7 known

Radiator sizeiAIO coolers only. The nominal size class from the fan positions, such as 240, 280, 360 or 420.

Not available

Not available

Radiator dimensionsiRadiator without fans. Length runs along the row of fans. Width runs across it. Thickness is the depth the airflow passes through, such as 27 or 38.

Not available

Not available

Radiator material

Not available

Not available

Tube lengthiLength of each tube between the pump block and the radiator, as published. When the two tubes differ, the shorter is stored and the other goes in the source note.

Not available

Not available

Max pump speediHighest rated pump speed. When the maker gives a range, this is its top.

Not available

Not available

Pump power connectoriHow the pump gets power. A pump wired through a supplied hub or cable uses the plug at the motherboard or PSU end. A pump powered from SATA with a separate 3-pin speed lead is SATA power.

Not available

Not available

VRM faniA small fan on the pump block that blows over the motherboard voltage regulators.

Not available

Not available

Fans

1 of 2 differ

Included fansiFans in the box that cool the heatsink or radiator, one row per fan model. A VRM fan on the pump block is left out. Speed, airflow, pressure and noise are the maker's figures for one fan at full speed, in the fastest mode and without a low-noise adapter. When a range is published, the top of the range is stored. Count is the number of rotors, so a unified frame with three 120 mm rotors counts 3 with size 120. Min speed is the lowest speed while spinning. A zero RPM stop is not stored. FDB and S-FDB are fluid dynamic. HDB is hydrodynamic. Cooler Master's Loop Dynamic Bearing is loop dynamic. If the maker gives airflow only in m³/h, convert with 1 m³/h = 0.5886 CFM, round to one decimal and say so in the source note. Connector is the fan's power lead. A separate lighting lead is not counted, and a maker cable or adapter in the box that ends in a 4-pin PWM plug counts as 4-pin PWM, even when the fan's own lead is proprietary. For an air cooler with one fan, the maker's noise figure for the cooler is the fan noise. A figure the maker does not label per fan or in total counts as per fan. When a maker table prints noise for the whole cooler with no per-fan label and the maker's own data sheet for the same fan gives a figure, the fan data sheet figure is stored.

Abe quiet! Dark Rock 6

Model	Size (mm)	Fans	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
Silent Wings PWM 135 mm	135	1	2,000	79.48	2.48	31.1	Fluid dynamic (FDB)	4-pin PWM

Source2Press articlepcgameshardware.de/CPU-Kuehler-Hardware-255512/News/Dark-Rock-Pro-6-Be-Quiet-Release-Preis-kaufen-1530283Read 15 October 2026Fan 135 x 135 x 25 mm, 2,000 rpm at 100% PWM, 79.48 / 135.04 CFM / m3/h, 2.48 mmH2O, 4-pin PWM, overall noise 11.9 / 23.2 / 31.1 dB(A) at 50 / 75 / 100%.5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: 1x 135 mm Silent Wings PWM, 135 x 135 x 25 mm, 2000 RPM, 79.48 CFM / 135.04 m3/h at 100% PWM, 2.48 mmH2O, 4-pin PWM, noise 11.9 / 23.2 / 31.1 dB(A) at 50 / 75 / 100%. EnosTech prints 74.98 CFM and 31.3 dB(A), which do not match the maker's 135.04 m3/h (79.49 CFM).6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 2026Maker's table: Silent Wings PWM, 135 x 135 x 25 mm, 2000 rpm, 79.48 / 135.04 CFM / m3/h, 2.48 mmH2O, fluid dynamic bearing, 6-pole motor, 12 V, 4-pin PWM, overall noise 31.1 dB(A).9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Custom 135 mm Silent Wings fan with a six-pole motor and fluid dynamic bearing, 0-2,000 rpm, 79.48 CFM, 2.48 mmH2O, max 31.1 dBA.11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Retailer's airflow row reads 89.95 CFM, which is the Pro 6 figure in m3/h. It is not used. Fan 135 mm, 2000 rpm, 2.48 mmH2O, 31.1 dB, 4-pin PWM. Feature text: asymmetrical design and cut-outs give compatibility with memory modules and VRM coolers, without space constraints. This is why no RAM height limit is stored.

BNoctua NH-U9S

Model	Size (mm)	Fans	Min speed (rpm)	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
NF-A9 PWM	92	1	400	2,000	46.4	2.28	22.8	SSO or SSO2	4-pin PWM

Source1Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Fan specification: Noctua NF-A9 PWM, SSO2 bearing, max 2000 RPM (+/-10%), 1550 RPM with the L.N.A., min 400 RPM at 20% PWM (+/-20%), 78.9 m3/h, 22.8 dB(A) (16.3 dB(A) with the L.N.A.). The standalone NF-A9 PWM listing at QuietPC prints a 450 RPM minimum, and the cooler table's 400 RPM is stored. The page has no static pressure, see QuietPC and the datasheet. The max values are for one fan without the L.N.A.2Retailer pagequietpc.com/nh-u9sRead 15 October 2026Fan table: Noctua NF-A9 PWM, SSO2, 2000 RPM, 400 RPM min, 46.4 CFM (36.8 CFM with the L.N.A.), 22.8 dB(A), RGB No. The page has no static pressure.4Maker spec sheet (PDF)cdn.inet.se/pdf/6308879_0.pdfRead 15 October 2026Fan specifications: NF-A9 PWM, 4-pin PWM, SSO2 bearing, max static pressure 2.28 mmH2O (1.53 with the L.N.A.), 78.9 m3/h, 22.8 dB(A). This is an older copy of the datasheet. Its socket list and its 97 mm depth with fan differ from the current table.5Retailer pagequietpc.com/nf-a9-pwmRead 15 October 2026Standalone NF-A9 PWM table: static pressure 2.28 mm H2O (1.53 with the L.N.A.), the fan supplied with the NH-U9S. It also prints a 450 RPM minimum.

FansiNumber of included heatsink or radiator fans.

1=CalculatedFrom Included fans

1=CalculatedFrom Included fans

Display and lighting

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RGB lightingiLighting on the fans, the heatsink or the pump block.

No11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Spec table: Luminous No.

No2Retailer pagequietpc.com/nh-u9sRead 15 October 2026Fan table: RGB No.

Lighting standardiThe named lighting connection. ARGB lighting alone does not prove a 5 V header. Proprietary means the maker's own hub or cable system.

Not available

Not available

Built-in screeniA screen on the pump block or the heatsink. LCD and OLED screens show images. A segment readout shows digits only, such as the CPU temperature.

None11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Spec table: Integrated display No.

None2Retailer pagequietpc.com/nh-u9sRead 15 October 2026The spec table lists no screen or lighting.

Screen sizeiDiagonal of the built-in screen.

Not available

Not available

Screen resolution

Not available

Not available

SoftwareiThe maker's software for lighting, the screen or the pump. Software that works with the cooler out of the box. Software that needs a separately sold controller is left out.

Not available

Not available

Needs a USB headeriThe cooler needs an internal USB 2.0 header on the motherboard for software control, sensors or the screen. A wireless receiver that plugs into any USB port does not count.

Not available

No13Reviewenostech.com/noctua-nh-u9s-chromax-black-cooler-reviewRead 15 October 2026The NF-A9 PWM fan uses a 4-pin PWM connector. No USB cable or software is mentioned for the cooler.

Measured

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Cybenetics THETA, AMD AM5iThe THETA level for this cooler's class on the Cybenetics AMD AM5 platform with a Ryzen 9 7900X. It is rated at 30 dB(A) normalized noise, or at 25 dB(A) for a cooler that cannot reach 30 dB(A). No level means tested without a level. A cooler that Cybenetics did not test on this platform is left out. A report with a heading for this platform but no results counts as not tested.

Not available

Not available

Cybenetics THETA, Intel LGA1851iThe same rating on the Cybenetics Intel LGA1851 platform with a Core Ultra 9 285K. A cooler that Cybenetics did not test on this platform is left out. A report with a heading for this platform but no results counts as not tested.

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Overall performance at 30 dB(A), AM5 (measured)iThe Cybenetics Overall Performance score at 30 dB(A) normalized noise on the AMD AM5 platform. It is average CPU power times average CPU frequency divided by average CPU temperature. Higher is better. A cooler rated only at 25 dB(A) has no value here.

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Overall performance at 30 dB(A), LGA1851 (measured)iThe same score on the Cybenetics Intel LGA1851 platform. Scores from the two platforms are not comparable with each other.

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Noise at 100% fan setting (Cybenetics)iThe Cybenetics noise at the 100% fan setting, measured 1 m from the cooler in a hemi-anechoic chamber, with the pump of an AIO at full speed. Other reviewers' noise goes in the thermal test rows.

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Thermal tests (measured)iReviewer results, one row per test condition. Rows compare only when the test CPU, load, power and noise level match. The source note names the reviewer, ambient temperature, case or open bench, and thermal paste. Test CPU is the CPU name only, such as AMD Ryzen 9 7900X. The power limit and mode go in the load. Above ambient is stored only when the reviewer publishes it, never computed from the ambient.

Abe quiet! Dark Rock 6

Test CPU	Load	CPU power (W)	Fan setting	Noise (dB(A))	CPU temperature (°C)	Above ambient (°C)
AMD Ryzen 9 9950X3D	Cinebench 26 multi-thread, CPU set to 170 W TDP, average core temperature over ambient	170	600 rpm	Not available	Not available	61.3
AMD Ryzen 9 9950X3D	Cinebench 26 multi-thread, CPU set to 170 W TDP, average core temperature over ambient	170	1,200 rpm	Not available	Not available	64.1
AMD Ryzen 9 9950X3D	Cinebench 26 multi-thread, CPU set to 170 W TDP, average core temperature over ambient	170	2,000 rpm (maximum)	42.9	Not available	54.6
AMD Ryzen 9 9950X3D	Cinebench 26 multi-thread, CPU set to 105 W TDP, average core temperature over ambient	105	600 rpm	Not available	Not available	53.1
AMD Ryzen 9 9950X3D	Cinebench 26 multi-thread, CPU set to 105 W TDP, average core temperature over ambient	105	1,200 rpm	Not available	Not available	42.8
AMD Ryzen 9 9950X3D	Cinebench 26 multi-thread, CPU set to 105 W TDP, average core temperature over ambient	105	2,000 rpm (maximum)	42.9	Not available	39.9
AMD Ryzen 9 9950X3D	Cinebench 26 multi-thread, CPU set to 65 W TDP, average core temperature over ambient	65	600 rpm	Not available	Not available	31.6
AMD Ryzen 9 9950X3D	Cinebench 26 multi-thread, CPU set to 65 W TDP, average core temperature over ambient	65	1,200 rpm	Not available	Not available	25.2
AMD Ryzen 9 9950X3D	Cinebench 26 multi-thread, CPU set to 65 W TDP, average core temperature over ambient	65	2,000 rpm (maximum)	42.9	Not available	21.3
AMD Ryzen 7 9700X	Prime95 Small FFTs, at least 10 minutes, maximum core temperature, stock paste, standard mounting position	Not available	100%	44.7	77.1	Not available

Source8Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6/3Read 15 October 2026APH Networks on a Ryzen 7 9700X, ASUS ProArt X870E-Creator WiFi in a TRYX FLOVA F50 case, room of about 23 C, the cooler's own stock paste, Prime95 Small FFTs for at least 10 minutes, maximum core temperature in HWiNFO, standard mounting position. Result 77.1 C with no throttling. The reviewer measured 44.7 dBA at 50 cm at maximum fan speed. The CPU power, paste name and ambient are not stated precisely, so no power is stored.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Club386 with a Ryzen 9 9950X3D on an MSI MEG X870E Ace Max in a closed be quiet! Light Base 900 FX case with the case fans at 30%, Cinebench 26 multi-thread. The CPU ran at 170, 105 and 65 W TDP settings. The power is the setting, not a measured value. Temperatures are the average core temperature minus the room temperature, which the review does not state. The peak-core delta T values are 73.3, 71.6 and 66.4 C at 170 W, 60.5, 49.4 and 45.3 C at 105 W and 43.5, 36.4 and 32.4 C at 65 W for 600, 1,200 and 2,000 rpm. At 170 W and 600 rpm the CPU throttled from about 200 W to 172 W during the run, so that row is not comparable with the others. Noise is a meter 10 in (25 cm) in front of the closed case, so it does not compare with Cybenetics' 1 m figures. 600 and 1,200 rpm were undetected and are not stored. The 42.9 dBA at 2,000 rpm is repeated in each power row. The paste is not named.

BNoctua NH-U9S

Test CPU	Load	Fan setting	CPU temperature (°C)
Intel Core i7-4790K	wPrime 1000M, two full runs, CPU at default settings, peak package temperature	1 fan, default	66
Intel Core i7-4790K	wPrime 1000M, three full runs, all cores at 4.6 GHz and 1.3 V, peak package temperature	1 fan, default	78

Source11Reviewguru3d.com/review/noctua-nh-d9l-and-nh-u9s-cpu-cooler-review/page-8Read 15 October 2026Guru3D review, values from the text and bar charts of pages 8 and 9. Core i7-4790K on a Z97 board, room temperature about 21 C. Load is wPrime 1000M and the value is the hottest package temperature after the last run. At default settings the NH-U9S reached 66 C and at 4600 MHz and 1.3 V it reached 78 C. The chart also shows 63 C and 75 C with an optional second fan, which is not stored. CPU power and the thermal paste are not stated. Guru3D measures noise at 75 cm and its load chart shows 35 dBA, but the page does not say which CPU state it covers, so no noise value is stored.

Dimensions and weight

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DimensionsiAir coolers only. The cooler with its included fans in the standard position, without the mounting kit. Height runs from the bottom of the base to the top. Depth runs along the airflow, fans included. Width runs across the fins. Map by direction, not by letter. Width runs across the fins, depth runs along the airflow. DeepCool's 129 x 138 x 160 mm (L x W x H) is width 129, depth 138, height 160.

Width139Height162Depth102.4mm(5.5 × 6.4 × 4 in)2Press articlepcgameshardware.de/CPU-Kuehler-Hardware-255512/News/Dark-Rock-Pro-6-Be-Quiet-Release-Preis-kaufen-1530283Read 15 October 2026Table row 'Abmessungen, inkl. Luefter (L x B x H in mm)': 102.4 x 139 x 162. Stored as depth 102.4, width 139, height 162.5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: 102.4 x 139 x 162 mm including fan.6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 2026Reviewer copy of the maker's table: overall dimensions without mounting material 102.4 x 139 x 162 mm.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Spec table: 102 x 139 x 162 mm with fan, rounded.10Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 2026102.4 x 139 x 162 mm (L x W x H). The review gives 1.05 kg, which is not used because the maker states 1005 g.11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 2026Retailer lists 162 mm height and swaps width and depth, so the maker's table is used.

Width95Height125Depth95mm(3.7 × 4.9 × 3.7 in)1Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Spec table, with fan: height 125 mm, width 95 mm, depth 95 mm. The older Noctua datasheet copy at inet.se prints 97 mm depth with fan. Noctua's text says the NH-U9S does not overhang the RAM slots on current Intel and most AMD boards, so it has no RAM height limit and ram_clearance_mm is left out. A footnote says some AMD boards violate AMD's keep-out zone, so only RAM up to 30 mm fits on these boards.6Retailer pageassmann.com/product-pdf/aat/4716123315575Read 15 October 2026Height, width, depth with fan: 125, 95, 95 mm.10Reviewguru3d.com/review/noctua-nh-d9l-and-nh-u9s-cpu-cooler-review/page-4Read 15 October 2026The review says 125(H) x 95(W) x 95(D) mm with the fan included.

Heatsink dimensionsiAir coolers only. The heatsink without fans, as the maker lists it. Map by direction, not by letter. Width runs across the fins, depth runs along the airflow. DeepCool's 129 x 138 x 160 mm (L x W x H) is width 129, depth 138, height 160. A heatsink depth that equals the depth with fans includes the fan, so that axis is not stored.

Width139Height162Depth77.4mm(5.5 × 6.4 × 3 in)6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 2026Reviewer copy of the maker's table: heatsink 77.4 x 139 x 162 mm (L x W x H). Stored as depth 77.4, width 139, height 162. With the 25 mm fan this gives the 102.4 mm overall depth.

Width95Height125Depth68mm(3.7 × 4.9 × 2.7 in)1Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Spec table, without fan: height 125 mm, width 95 mm, depth 68 mm.2Retailer pagequietpc.com/nh-u9sRead 15 October 2026Spec table, without fan: 125 x 95 x 68 mm.

WeightiAn air cooler with its included fans. An AIO cooler as one unit with pump block, tubes, radiator and fans. Mounting hardware is left out when the maker states it separately. When one maker figure may include the mounting kit, such as a press release net weight above the product page figure, the product page figure is stored. An RGB edition can weigh a little more or less, so it is per variant.

1,005g(2.2 lb)2Press articlepcgameshardware.de/CPU-Kuehler-Hardware-255512/News/Dark-Rock-Pro-6-Be-Quiet-Release-Preis-kaufen-1530283Read 15 October 2026Table row 'Gesamtgewicht (g)': 1.005, the German thousands dot, so 1005 g.5Reviewguru3d.com/review/bequiet-dark-rock-6-cpu-cooler-reviewRead 15 October 2026Spec table: 1005 g including fan.6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 2026The copy of the maker's table reads 1.01 kg, a rounding of the 1005 g stated by PCGH and Guru3D.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Spec table: 1,005 g with fan.11Retailer pageldlc.com/en/product/PB00741958.htmlRead 15 October 20261005 g.

618g(1.4 lb)1Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Spec table: Weight (with fan) 618 g.6Retailer pageassmann.com/product-pdf/aat/4716123315575Read 15 October 2026Weight (with fan): 618 g, without fan 524 g.10Reviewguru3d.com/review/noctua-nh-d9l-and-nh-u9s-cpu-cooler-review/page-4Read 15 October 2026The review says 618 g including the fan.12Reviewrelaxedtech.com/reviews/noctua/nh-u9s/1Read 15 October 2026618 g with one fan installed.15Retailer pageldlc.com/en/product/PB00181734.htmlRead 15 October 2026Weight 618 g.

Heatsink weightiAir coolers only. The heatsink without fans.

836g(1.8 lb)7Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6/2Read 15 October 2026APH Networks weighed 836 g for the heatsink alone and about 1012 g with the front fan attached. The maker states 1005 g with the fan.

524g(1.2 lb)2Retailer pagequietpc.com/nh-u9sRead 15 October 2026Spec table: Weight (without fan) 524 g.4Maker spec sheet (PDF)cdn.inet.se/pdf/6308879_0.pdfRead 15 October 2026Weight / Weight with NF-A9 PWM: 524 g / 618 g.12Reviewrelaxedtech.com/reviews/noctua/nh-u9s/1Read 15 October 2026524 g without the fan and 618 g with one fan.

In the box

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In the boxiItems supplied with this exact model, verbatim.

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 Paper6Reviewaphnetworks.com/reviews/be-quiet-dark-rock-6Read 15 October 2026Maker's table accessories: thermal grease, Intel and AMD mounting set and screwdriver.10Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 2026Packing and Unboxing list as printed. Guru3D also mentions fan clips in the box, which this list does not show.

NH-U9S heatsink, NF-A9 PWM premium fan, NA-RC7 Low-Noise Adaptor (L.N.A.), NT-H1 high-grade thermal compound, SecuFirm2 Mounting Kit, Fan-clips for second NF-A9, Noctua Metal Case-Badge1Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Scope of delivery: NF-A9 PWM premium fan, NA-RC7 Low-Noise Adaptor (L.N.A.), NT-H1 high-grade thermal compound, SecuFirm2 Mounting Kit, Fan-clips for second NF-A9 and Noctua Metal Case-Badge. The heatsink itself is listed in the datasheet copy at inet.se.4Maker spec sheet (PDF)cdn.inet.se/pdf/6308879_0.pdfRead 15 October 2026Scope of delivery: NH-U9S heatsink, NF-A9 PWM premium fan, Low-Noise Adaptor (L.N.A.), NT-H1 high-grade thermal compound, SecuFirm2 Mounting Kit and an installation kit for a second NF-A9 fan (optional).6Retailer pageassmann.com/product-pdf/aat/4716123315575Read 15 October 2026Package contents of the NH-U9S: NF-A9 PWM premium fan, Low-Noise Adaptor (L.N.A.), NT-H1 high-grade thermal compound, SecuFirm2 Mounting Kit, Fan-clips for second NF-A9 and Noctua Metal Case-Badge.7Retailer pageassmann.com/product-pdf/aat/9010018000252Read 15 October 2026Package contents of the chromax.black: Black NH-U9S heatsink, NF-A9 PWM chromax.black premium fan, NA-RC7 Low-Noise Adaptor (L.N.A), NT-H1 high-grade thermal compound, Black SecuFirm2 mounting kit, Black fan-clips for second NF-A9 and Noctua Metal Case-Badge.

Links

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Product page

www.bequiet.com/en/cpucooler/73251Maker product pagebequiet.com/en/cpucooler/7325Read 15 October 2026Product page of the BK046. bequiet.com blocks agents, so it was not opened. The maker's spec table was read in copies at PCGH, Guru3D and APH Networks, and the maker's feature text in the LDLC product description.

noctua.at/en/nh-u9s17Maker product pagenoctua.at/en/nh-u9sRead 15 October 2026Noctua's product page. The page was not opened. It is stored as the product link only. No value comes from it. Spec values come from retailer and distributor copies of Noctua's spec table and datasheet, press coverage of the launch and reviews.

Spec sheet

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Manual

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EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

3years2Press articlepcgameshardware.de/CPU-Kuehler-Hardware-255512/News/Dark-Rock-Pro-6-Be-Quiet-Release-Preis-kaufen-1530283Read 15 October 2026Text: three-year manufacturer warranty.3Press releasecdrinfo.com/d7/content/be-quiet-dark-rock-pro-6Read 15 October 2026Dark Rock 6 is covered by a 3-year manufacturer's warranty.9Reviewclub386.com/be-quiet-dark-rock-6-reviewRead 15 October 2026Spec table: 3 years.10Reviewenostech.com/be-quiet-dark-rock-6-air-cpu-cooler-reviewRead 15 October 20263-year warranty.

6years1Retailer pagecomputerlounge.co.nz/products/noctua-nh-u9s-cpu-cooler-w-nf-a9-pwmRead 15 October 2026Specification table: Warranty 6 Years. QuietPC prints 72 months.

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