CPU coolers / Compare

ARCTIC Freezer 36 vs be quiet! Pure Rock 3

A

Product A: ARCTIC

Freezer 36

33 of 54 known

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B

Product B: be quiet!

Pure Rock 3

34 of 54 known

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Only differences

AARCTIC Freezer 36

Bbe quiet! Pure Rock 3

General

8 of 12 differ

Series

Not available

Pure Rock7Reviewoverclocking.com/test-be-quiet-pure-rock-3-blackRead 15 October 2026The review places the cooler in the Pure Rock entry-level series of be quiet!.

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

ACFRE00121A, ACFRE00123A1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 20262Maker product pagearctic.de/en/Freezer-36-Black/ACFRE00123ARead 14 October 2026ACFRE00123A is the Freezer 36 (Black).3Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 2026

BK0391Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026The page shows article number BK039.2Retailer pagescan.co.uk/products/be-quiet!-pure-rock-3-black-single-tower-4-heatpipes-120mm-pure-wings-3-fan-aluminium-copperRead 15 October 2026Listed as model BK039.

GTIN / EAN

4895213704120, 840033401937, 4895213704144, 8400334019511Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 20262Maker product pagearctic.de/en/Freezer-36-Black/ACFRE00123ARead 14 October 2026EAN 4895213704144 and UPC 840033401951 for ACFRE00123A.3Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 2026Shipping information: ACFRE00121A EAN 4895213704120, UPC 840033401937. ACFRE00123A EAN 4895213704144, UPC 840033401951.

42600521924812Retailer pagescan.co.uk/products/be-quiet!-pure-rock-3-black-single-tower-4-heatpipes-120mm-pure-wings-3-fan-aluminium-copperRead 15 October 2026EAN 4260052192481. Other retailer listings carry the same EAN with BK039.

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

5 March 20249Press articleigorslab.de/en/arctic-starts-the-launch-of-the-freezer-36-series-review-will-be-available-tomorrow-morningRead 14 October 2026Press release of 5 March 2024, quoted from ARCTIC.10Press articlefunkykit.com/news/arctic-announces-freezer-36-series-cpu-air-coolersRead 14 October 2026Press release of 5 March 2024.

25 February 20254Press articlegeektopia.es/es/technology/2025/02/25/noticias/be-quiet-anuncia-la-serie-pure-rock-3-de-refrigeraciones.htmlRead 15 October 2026Spanish article of 2025-02-25 that announces the Pure Rock 3 series, which reaches stores on 11 March. be quiet! published the news that day.

Status

Available1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026The arctic.de store lists the standard model with its MSRP and an add-to-cart button on the access date.

Available2Retailer pagescan.co.uk/products/be-quiet!-pure-rock-3-black-single-tower-4-heatpipes-120mm-pure-wings-3-fan-aluminium-copperRead 15 October 2026On sale in the UK, listed with a price on the access date.

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.

From $45.991Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 20262Maker product pagearctic.de/en/Freezer-36-Black/ACFRE00123ARead 14 October 20269Press articleigorslab.de/en/arctic-starts-the-launch-of-the-freezer-36-series-review-will-be-available-tomorrow-morningRead 14 October 202610Press articlefunkykit.com/news/arctic-announces-freezer-36-series-cpu-air-coolersRead 14 October 2026

$29.96Reviewclub386.com/be-quiet-pure-rock-pro-3-reviewRead 15 October 2026The launch price table of the Pure Rock Pro 3 review lists be quiet! Pure Rock 3 Black at $29.90 / €29.90. Tax treatment is not stated.

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.

From €32.991Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 20262Maker product pagearctic.de/en/Freezer-36-Black/ACFRE00123ARead 14 October 20269Press articleigorslab.de/en/arctic-starts-the-launch-of-the-freezer-36-series-review-will-be-available-tomorrow-morningRead 14 October 202610Press articlefunkykit.com/news/arctic-announces-freezer-36-series-cpu-air-coolersRead 14 October 2026

€29.96Reviewclub386.com/be-quiet-pure-rock-pro-3-reviewRead 15 October 2026The same table row lists €29.90. overclocking.com also gives the announced price of 29.90 EUR. Whether VAT is included is not stated.7Reviewoverclocking.com/test-be-quiet-pure-rock-3-blackRead 15 October 2026The review says be quiet! announces a price of 29.90 EUR for the Black model.

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

US, EU10Press articlefunkykit.com/news/arctic-announces-freezer-36-series-cpu-air-coolersRead 14 October 2026USD prices for the US next to EUR prices in the ARCTIC shop.

Not available

ColoursiThe maker's own colour names

Standard, Black1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026The colour selector offers two options named Standard and Black.2Maker product pagearctic.de/en/Freezer-36-Black/ACFRE00123ARead 14 October 20268Press releasearctic.de/en/blog/the-new-generation-of-air-coolersRead 14 October 2026Standard model with a silver heatsink and copper heatpipes, and a black version with a black heatsink.

Black1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026The spec table lists Color Option: Black.

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.

Air1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026

Air2Retailer pagescan.co.uk/products/be-quiet!-pure-rock-3-black-single-tower-4-heatpipes-120mm-pure-wings-3-fan-aluminium-copperRead 15 October 2026The product title calls it a Performance Air CPU Cooler.

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

Single tower8Press releasearctic.de/en/blog/the-new-generation-of-air-coolersRead 14 October 2026Calls it a single-tower CPU cooler with two fans in push-pull.

Single tower2Retailer pagescan.co.uk/products/be-quiet!-pure-rock-3-black-single-tower-4-heatpipes-120mm-pure-wings-3-fan-aluminium-copperRead 15 October 2026The product title says Single Tower.

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.

Not available

190W1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026The spec table lists TDP (W) 190.3Press articlethefpsreview.com/2025/02/26/be-quiet-launches-the-pure-rock-3-series-including-the-first-be-quiet-double-tower-air-coolers-for-entry-level-systemsRead 15 October 2026The press release says a high 190W TDP cooling capacity.5Retailer pageldlc.pro/fiche/PB00672696.htmlRead 15 October 2026TDP Max. CPU 190 W.

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.

Copper12Reviewhwbusters.com/cooling/arctic-freezer-36-black-cpu-cooler-reviewRead 14 October 2026Technical specifications of the Freezer 36 (Black): base material copper.13Measurementcybenetics.com/evaluations/coolers/89Read 14 October 2026Technical specifications of the report: block material copper. The same table lists 6 heatpipes of 4 mm, which disagrees with the maker's 4 heatpipes of 6 mm. The maker is followed.

Copper1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026The shop copies be quiet!'s own spec table: Base Material Aluminum / Copper and CPU Contact Surface Heat pipe direct touch. The direct-touch heat pipes are the contact surface and the table names no plating, so copper is stored.4Press articlegeektopia.es/es/technology/2025/02/25/noticias/be-quiet-anuncia-la-serie-pure-rock-3-de-refrigeraciones.htmlRead 15 October 2026The heatsink has four copper heat pipes of 6 mm.

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

Included1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026The page lists TIM MX-6 (0.8 g). The spec sheet and the current manual say MX-7 (0.8 g). Either way a tube is in the box.3Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 2026General specifications: TIM MX-7 (0.8 g). The shop page still says MX-6.11Reviewigorslab.de/en/arctic-freezer-36-cpu-air-cooler-in-test-the-underdog-plays-top-dog-performs-well-and-costs-all-the-less-for-it/1Read 14 October 2026The accessories include a tube of MX-6 thermal paste (early sample) and an LGA1700 contact frame.

Pre-applied1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Thermal Grease (Type) Applied. It lists no paste syringe. overclocking.com confirms the paste is pre-applied.7Reviewoverclocking.com/test-be-quiet-pure-rock-3-blackRead 15 October 2026The review says the thermal paste is pre-applied.

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, LGA17001Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026Compatibility: Intel LGA1851 and LGA1700, AMD AM5 and AM4. The text says all Freezer 36 coolers work with LGA1851 without limitation.3Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 20266Owner's manualsupport.arctic.de/freezer-36_r7Read 14 October 2026Select your CPU socket: AMD AM5 and AM4, Intel LGA1851 and LGA1700.

AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1155, LGA1151, LGA11501Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Intel 1851 / 1700 / 1200 / 1150 / 1151 / 1155 and AMD AM5 / AM4. LGA1156 appears in some retailer lists but not in this table, so it is not stored.4Press articlegeektopia.es/es/technology/2025/02/25/noticias/be-quiet-anuncia-la-serie-pure-rock-3-de-refrigeraciones.htmlRead 15 October 2026Mounting hardware for LGA 1150, 1151, 1155, 1200, 1700, 1851, AM4 and AM5, the same list as the spec table.5Retailer pageldlc.pro/fiche/PB00672696.htmlRead 15 October 2026AMD AM4, AM5, Intel 1150, 1151, 1155, 1200, 1700 and 1851.

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.

42.9mm4Maker spec sheet (PDF)support.arctic.de/products/freezer-36/techdocs/Freezer%2036%20-%202D%20Drawing.pdfRead 14 October 2026RAM clearance 43.9 mm on AMD and 42.9 mm on Intel (motherboard clearance 46.2 mm and 45.2 mm). The lower Intel figure is stored so it holds on every supported socket. Both fans are in their standard position.

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.

Not available

Yes1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Key features: Offset mounting for better performance on latest AMD Ryzen CPUs.3Press articlethefpsreview.com/2025/02/26/be-quiet-launches-the-pure-rock-3-series-including-the-first-be-quiet-double-tower-air-coolers-for-entry-level-systemsRead 15 October 2026The press release says offset mounting for better compatibility with the latest AMD Ryzen CPUs is supported.7Reviewoverclocking.com/test-be-quiet-pure-rock-3-blackRead 15 October 2026The review describes an offset mounting position for AMD Ryzen 3000 to 9000 CPUs. The cooler's base itself is not off-centre.

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.

41Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026Heatsink: 4x 6 mm Ø, copper. Fin stack 59x 0.4 mm, aluminium.3Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 202612Reviewhwbusters.com/cooling/arctic-freezer-36-black-cpu-cooler-reviewRead 14 October 2026

41Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Heatpipe Number / Diameter 4 / 6 mm.3Press articlethefpsreview.com/2025/02/26/be-quiet-launches-the-pure-rock-3-series-including-the-first-be-quiet-double-tower-air-coolers-for-entry-level-systemsRead 15 October 2026Four 6mm heat pipes with HDT technology.

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

6mm1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 20263Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 202612Reviewhwbusters.com/cooling/arctic-freezer-36-black-cpu-cooler-reviewRead 14 October 2026

6mm1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Heatpipe Number / Diameter 4 / 6 mm.3Press articlethefpsreview.com/2025/02/26/be-quiet-launches-the-pure-rock-3-series-including-the-first-be-quiet-double-tower-air-coolers-for-entry-level-systemsRead 15 October 2026Four 6mm heat pipes with HDT technology.

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

Yes9Press articleigorslab.de/en/arctic-starts-the-launch-of-the-freezer-36-series-review-will-be-available-tomorrow-morningRead 14 October 2026Describes closely staggered direct-touch heatpipes.11Reviewigorslab.de/en/arctic-freezer-36-cpu-air-cooler-in-test-the-underdog-plays-top-dog-performs-well-and-costs-all-the-less-for-it/1Read 14 October 2026Review of the standard Freezer 36 (ACFRE00121A): instead of a cold plate the heatpipes sit in direct contact with the CPU heat spreader. The contact area is about 30.5 x 28.0 mm.12Reviewhwbusters.com/cooling/arctic-freezer-36-black-cpu-cooler-reviewRead 14 October 2026The heatpipes come in direct contact with the CPU heat spreader.

Yes1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: CPU Contact Surface Heat pipe direct touch.7Reviewoverclocking.com/test-be-quiet-pure-rock-3-blackRead 15 October 2026The review says the four 6 mm heat pipes are mounted in direct contact with the processor.

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

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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.

AARCTIC Freezer 36

Model	Size (mm)	Fans	Min speed (rpm)	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Bearing	Connector
P12 PWM PST	120	2	200	1,800	56.3	2.2	Fluid dynamic (FDB)	4-pin PWM

Source1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026Fans: 2x P12 PWM PST, 200 - 1800 rpm PWM controlled (0 rpm below 5 % PWM), fluid dynamic bearing, 4-pin PWM connector plus 4-pin plug. The page gives no airflow, pressure or noise for the fans.3Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 2026Fan specifications: 2x P12 PWM PST, 200-1800 rpm PWM controlled (0 rpm below 5 % PWM), fluid dynamic bearing, 0.10 A at 12 V DC, cable 200 mm plus 80 mm splitter cable, 4-pin PWM connector plus 4-pin plug.7Maker product pagearctic.de/en/P12-PWM-PST/ACFAN00132ARead 14 October 2026Standalone P12 PWM PST fan, the model named on the Freezer 36 spec sheet: 200-1800 rpm, 56.30 cfm (95.70 m3/h), 2.20 mmH2O, fluid dynamic bearing, 4-pin connector. The maker gives noise only as 0.3 sone, so noise_dba is left out. Retailers print 23.5 dB(A) and Hardware Busters 25 dBA.12Reviewhwbusters.com/cooling/arctic-freezer-36-black-cpu-cooler-reviewRead 14 October 2026Technical specifications: 2x P12 PWM PST, 120x120x25 mm, 200-1800 rpm, 56.3 CFM, 2.2 mmH2O. The review calls the bearing rifle type from ARCTIC's drawing. ARCTIC states fluid dynamic, so the maker is followed.

Bbe quiet! Pure Rock 3

Model	Size (mm)	Fans	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
Pure Wings 3 120mm PWM	120	1	2,000	59.6	2.41	31.2	Rifle	4-pin PWM

Source1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Number of Fans 1, Pure Wings 3 120mm PWM, 120 x 25 x 120 mm, 2000 rpm at 100% PWM, 59.6 cfm / 101.2 m3/h, 2.41 mm H2O, rifle bearing, 4-pin PWM connector. Overall noise level at 50 / 75 / 100% is 12.4 / 24.4 / 31.2 dB(A). With one fan, 31.2 dB(A) is stored as the fan noise. The maker gives no minimum speed. overclocking.com prints 2.42 mmH2O for the static pressure, and the maker's 2.41 is stored.

FansiNumber of included heatsink or radiator fans.

2=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.

No8Press releasearctic.de/en/blog/the-new-generation-of-air-coolersRead 14 October 2026Five versions: the standard model, a black version, a CO version and two illuminated A-RGB versions in black and white. The standard and black versions are not the illuminated ones.

No1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Lighting Connector No. The cooler is sold as the Black model without lighting. The LX model has the ARGB fan.

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.

None4Maker spec sheet (PDF)support.arctic.de/products/freezer-36/techdocs/Freezer%2036%20-%202D%20Drawing.pdfRead 14 October 2026The 2D drawing shows the top, side and front views of the heatsink and both fans, with no screen.

None1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026The spec table lists no screen.

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.

No6Owner's manualsupport.arctic.de/freezer-36_r7Read 14 October 2026The installation steps connect only fan headers (CPU_FAN, or CPU_FAN plus CPU_OPT). No USB cable is supplied or mentioned.

No7Reviewoverclocking.com/test-be-quiet-pure-rock-3-blackRead 15 October 2026Installation steps: the fan plugs into the CPU_FAN header of the motherboard. No USB cable or software is mentioned.

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.

Silver13Measurementcybenetics.com/evaluations/coolers/89Read 14 October 2026Report ACCLR00089 is for the Freezer 36 Black (ACFRE00123A), tested on 31 March 2025. The maker lists the same heatsink, fans and weight for the standard model. THETA Silver, Air, rated at 30 dB(A) on a Ryzen 9 7900X with the Default mount. It was evaluated under protocol revision 1.8, before Revision 2.0. The report shows no THETA level and no results for Intel LGA1851, so no LGA1851 value is stored.

Bronze8Measurementcybenetics.com/evaluations/coolers/112Read 15 October 2026Report BQCLR00112 is titled be quiet! Pure Rock 3 (tested 17 to 23 Nov 2025). Its fan is the Pure Wings 3 120mm High-Speed, with 4 heatpipes of 6 mm and 71 x 124 x 154 mm, which match the BK039. THETA Bronze, Air, rated at 30 dB(A) on a Ryzen 9 7900X with the Default mount. It was evaluated under protocol revision 1.8, before Revision 2.0.

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.

Not available

Silver8Measurementcybenetics.com/evaluations/coolers/112Read 15 October 2026THETA Silver, Air, rated at 30 dB(A) on a Core Ultra 9 285K with the Default mount.

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.

9,91813Measurementcybenetics.com/evaluations/coolers/89Read 14 October 2026Overall Performance 9,918 at 30 dB(A) on a Ryzen 9 7900X (PBO enabled, per the protocol).

9,4168Measurementcybenetics.com/evaluations/coolers/112Read 15 October 2026Overall Performance 9,416 at 30 dB(A) on a Ryzen 9 7900X.

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.

Not available

12,7568Measurementcybenetics.com/evaluations/coolers/112Read 15 October 2026Overall Performance 12,756 at 30 dB(A) on a Core Ultra 9 285K.

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.

30.5dB(A)13Measurementcybenetics.com/evaluations/coolers/89Read 14 October 202630.5 dB(A) at the 100% fan setting (1874 and 1895 rpm). Hemi-anechoic chamber with a 6 dB(A) noise floor, Bruel & Kjaer 2270 sound analyser, microphone 1 m from the cooler per the protocol.

29.4dB(A)8Measurementcybenetics.com/evaluations/coolers/112Read 15 October 202629.4 dB(A) at the 100% fan setting (2068 rpm). Hemi-anechoic chamber with a 6 dB(A) noise floor, Bruel & Kjaer 2270 G4 sound analyser, microphone 1 m from the cooler per the protocol.

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.

AARCTIC Freezer 36

Test CPU	Load	CPU power (W)	Fan setting	Noise (dB(A))	CPU temperature (°C)
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	178.2	20 dB(A)	20	95.2
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	182.7	25 dB(A)	25	95.3
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	183.9	30 dB(A)	30	95.2
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	185.3	100%	30.5	95.2

Source13Measurementcybenetics.com/evaluations/coolers/89Read 14 October 2026Cybenetics Cooling Solutions Test Protocol (https://cybenetics.com/data/Cybenetics%20Cooling%20Solutions%20Test%20Protocol_en.pdf), revision 1.8 procedure: ambient held at 25 C and 30% humidity in a climate chamber, open Cooler Master Test Bench, Asus TUF Gaming X670E-Plus, Prime95 Small FFTs for 20 minutes per noise level, at least two sessions averaged. Fans were set to reach each normalized noise level at 1 m, or 100%. CPU power is measured at the EPS connectors. The protocol states Arctic MX-4 paste for all tests. The CPU sits at its 95 C limit in all rows. The report publishes no temperature above ambient.

Bbe quiet! Pure Rock 3

Test CPU	Load	CPU power (W)	Fan setting	Noise (dB(A))	CPU temperature (°C)	Above ambient (°C)
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	170.6	20 dB(A)	20	95.1	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	174.8	25 dB(A)	25	95.1	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	175.9	30 dB(A)	30	95.1	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	175.9	100%	29.4	95.1	Not available
Intel Core Ultra 9 285K	Prime95 Small FFTs, full CPU load, Intel Default Mode	294.9	20 dB(A)	20	101.9	Not available
Intel Core Ultra 9 285K	Prime95 Small FFTs, full CPU load, Intel Default Mode	295.3	25 dB(A)	25	99.9	Not available
Intel Core Ultra 9 285K	Prime95 Small FFTs, full CPU load, Intel Default Mode	296.6	30 dB(A)	30	97.8	Not available
Intel Core Ultra 9 285K	Prime95 Small FFTs, full CPU load, Intel Default Mode	296.6	100%	29.4	97.8	Not available
AMD Ryzen 9 7900X	Fixed CPU power of 65 W	65	100% (2000 rpm)	Not available	Not available	18.3
AMD Ryzen 9 7900X	Fixed CPU power of 65 W	65	66% (1300 rpm)	Not available	Not available	20.9
AMD Ryzen 9 7900X	Fixed CPU power of 65 W	65	33% (650 rpm)	Not available	Not available	29.1
AMD Ryzen 9 7900X	Fixed CPU power of 105 W	105	100% (2000 rpm)	Not available	Not available	42.7
AMD Ryzen 9 7900X	Fixed CPU power of 105 W	105	66% (1300 rpm)	Not available	Not available	47.4
AMD Ryzen 9 7900X	Fixed CPU power of 105 W	105	33% (650 rpm)	Not available	Not available	66.1
AMD Ryzen 9 7900X	Fixed CPU power of 170 W	170	100% (2000 rpm)	Not available	Not available	64.1
AMD Ryzen 9 7900X	Fixed CPU power of 170 W	170	66% (1300 rpm)	Not available	Not available	67.9
Intel Core i5-13600KF	Fixed CPU power of 65 W	65	100% (2000 rpm)	Not available	Not available	24.2
Intel Core i5-13600KF	Fixed CPU power of 65 W	65	66% (1300 rpm)	Not available	Not available	25.8
Intel Core i5-13600KF	Fixed CPU power of 65 W	65	33% (650 rpm)	Not available	Not available	32.5
Intel Core i5-13600KF	Fixed CPU power of 125 W	125	100% (2000 rpm)	Not available	Not available	46.8
Intel Core i5-13600KF	Fixed CPU power of 125 W	125	66% (1300 rpm)	Not available	Not available	52.6
Intel Core i5-13600KF	Fixed CPU power of 125 W	125	33% (650 rpm)	Not available	Not available	67
Intel Core i5-13600KF	Fixed CPU power of 170 W	170	100% (2000 rpm)	Not available	Not available	66.3
Intel Core i5-13600KF	Fixed CPU power of 170 W	170	66% (1300 rpm)	Not available	Not available	72

Source7Reviewoverclocking.com/test-be-quiet-pure-rock-3-blackRead 15 October 2026overclocking.com review of 2025-03-11, values read from the bar charts. Temperatures are the delta between the CPU and the ambient temperature, which the review does not state. Fan speed is set by the motherboard at 100%, 66% and 33%, measured at 12 V, 8 V and 5 V as 2000, 1300 and 650 rpm. AMD: Ryzen 9 7900X at 65, 105 and 170 W. Intel: Core i5-13600KF at 65, 125 and 170 W. The charts have no 33% bar for the cooler at 170 W, so no row is stored for it. The review says some coolers could not hold the CPU at the highest power. The review charts noise in dB with no weighting or distance, so no noise value is stored. Its text does not name the load program or the paste. The review text credits the offset mount for the AM5 results.8Measurementcybenetics.com/evaluations/coolers/112Read 15 October 2026Cybenetics Cooling Solutions Test Protocol, revision 1.8 procedure: ambient 25 C and 30% humidity in a climate chamber, open bench (Cooler Master Test Bench for the Asus TUF Gaming X670E-Plus, DimasTech Bench for the ASRock Z890 Taichi), Prime95 Small FFTs at each noise level, CPU power measured at the EPS connectors, Arctic MX-4 paste for all tests, default mount. The first four rows are AMD and rows five to eight are Intel. The CPU hits its temperature limit in all rows. The report publishes no temperature above ambient. The 100% rows repeat the 30 dB(A) results because full speed is 29.4 dB(A).

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.

Width126Height159Depth104mm(5 × 6.3 × 4.1 in)1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026General specifications: 104 (L) x 126 (W) x 159 (H) mm. The 2D drawing shows 126 mm across the fan face and 104 mm along the airflow, fans included.3Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 2026General specifications: 104 (L) x 126 (W) x 159 (H) mm. The drawing maps width 126 and depth 104.4Maker spec sheet (PDF)support.arctic.de/products/freezer-36/techdocs/Freezer%2036%20-%202D%20Drawing.pdfRead 14 October 20262D drawing for ACFRE00121A (rev. date 28/12/2023): overall 104 mm side view, 126 mm front view, 159 mm height. The front view is the fan face, so width is 126 mm and depth is 104 mm. The drawing shows both fans.12Reviewhwbusters.com/cooling/arctic-freezer-36-black-cpu-cooler-reviewRead 14 October 2026126 mm x 104 mm x 159 mm including fans, which matches the maker's drawing.

Width124Height154Depth71mm(4.9 × 6.1 × 2.8 in)1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Dimensions Without Mounting Material (L x W x H) 71 x 124 x 154 mm, so depth 71, width 124 and height 154, fan included.4Press articlegeektopia.es/es/technology/2025/02/25/noticias/be-quiet-anuncia-la-serie-pure-rock-3-de-refrigeraciones.htmlRead 15 October 2026Size 154 mm x 124 mm x 71 mm.5Retailer pageldlc.pro/fiche/PB00672696.htmlRead 15 October 2026Height 154 mm, width 124 mm and depth 71 mm with fan. Depth without fan is 46 mm.

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.

Not available

Width124Height154Depth46mm(4.9 × 6.1 × 1.8 in)1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Heatsink Dimensions (L x W x H) 46 x 124 x 154 mm. The depth of 46 mm differs from the 71 mm with fan, so it is the heatsink alone.

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.

890g(2 lb)1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026General specifications: weight 890 g. Packaging weight is 1.23 kg.3Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 2026General specifications: weight 890 g. Gross weight 1230 g.12Reviewhwbusters.com/cooling/arctic-freezer-36-black-cpu-cooler-reviewRead 14 October 2026Weight 890 g.

570g(1.3 lb)1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Total Weight 0.57 kg. The page's Additional information row says 0.85 kg, which is a shipping figure, and the package gross weight row is not usable. Cybenetics lists 590 g. The maker's 570 g is stored.4Press articlegeektopia.es/es/technology/2025/02/25/noticias/be-quiet-anuncia-la-serie-pure-rock-3-de-refrigeraciones.htmlRead 15 October 2026Weight 570 g.5Retailer pageldlc.pro/fiche/PB00672696.htmlRead 15 October 2026Weight 570 g.

Heatsink weightiAir coolers only. The heatsink without fans.

Not available

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In the box

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In the boxiItems supplied with this exact model, verbatim.

Freezer 36 Heatsink x1, P12 PWM PST Set x1, MX-7 (0.8 g) x1, CPU Contact Frame x1 (Intel), T20 Driver x1 (Intel), Shoulder Screws x4 (Intel), Mounting Module x2 (AMD), Screws x4 (AMD)6Owner's manualsupport.arctic.de/freezer-36_r7Read 14 October 2026Packaging Content image of the Rev 7 manual: heatsink, P12 PWM PST fan set, MX-7 (0.8 g). Intel: CPU contact frame, T20 driver, 4 shoulder screws. AMD: 2 mounting modules and 4 screws. The manual hub at support.arctic.de/freezer-36-series lists Rev 1 to Rev 7.

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Links

Not compared

Product page

www.arctic.de/en/Freezer-36/ACFRE00121A1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 2026

www.bequiet.com/en/cpucooler/55919Maker product pagebequiet.com/en/cpucooler/5591Read 15 October 2026Product page of the BK039. bequiet.com blocks agents, so it was not opened. The maker's spec table was read in a retailer copy (Computer Assistance) and the launch press release in a copy at The FPS Review.

Spec sheet

www.arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdf3Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 2026

Not available

Manual

support.arctic.de/freezer-36-series5Owner's manualsupport.arctic.de/freezer-36-seriesRead 14 October 2026ARCTIC support hub for the Freezer 36 user manual. It lists one manual per product revision, Rev 1 to Rev 7, and the revision number is printed on the bottom of the box.

Not available

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.

Not available

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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.

6years1Maker product pagearctic.de/en/Freezer-36/ACFRE00121ARead 14 October 20263Maker spec sheet (PDF)arctic.de/media/6b/50/57/1709195123/Spec_Sheet_Freezer_36_EN.pdfRead 14 October 2026

3years1Retailer pagecomputerassistance.co.uk/product/be-quiet-pure-rock-3-cpu-cooler-universal-socket-pure-wings-3-pwm-fan-2000rpm-only-31-2dba-at-maximum-fan-speed-190w-tdp-3-year-manufacturers-warrantyRead 15 October 2026Spec table: Warranty 3 Years.3Press articlethefpsreview.com/2025/02/26/be-quiet-launches-the-pure-rock-3-series-including-the-first-be-quiet-double-tower-air-coolers-for-entry-level-systemsRead 15 October 2026All Pure Rock 3 coolers come with a 3-year manufacturer's warranty.5Retailer pageldlc.pro/fiche/PB00672696.htmlRead 15 October 2026Commercial warranty 3 years from the maker.

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