CPU coolers / Compare

ARCTIC Liquid Freezer III Pro 420 vs be quiet! Pure Loop 3 360mm

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Product A: ARCTIC

Liquid Freezer III Pro 420

35 of 54 known

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Product B: be quiet!

Pure Loop 3 360mm

29 of 54 known

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Only differences

AARCTIC Liquid Freezer III Pro 420

Bbe quiet! Pure Loop 3 360mm

General

7 of 12 differ

Series

Liquid Freezer III Pro8Owner's manualsupport.arctic.de/products/liquid-freezer-iii-pro-420/techdocs/Quick_Manual_AMD_r1b.pdfRead 14 October 2026Quick start guide title: Liquid Freezer III Pro Series.

Pure Loop 32Press articleguru3d.com/story/be-quiet-pure-loop-3-and-pure-loop-3-lx-aio-coolers-announcedRead 15 October 2026Introduced as the Pure Loop 3, next to the Pure Loop 3 LX. The 360mm model is one of three sizes of the plain series (240, 280 and 360 mm).

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

ACFRE00181A, ACFRE00185A, ACFRE00189A1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 20262Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026

BW029EU, BW029US5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Product code BW029EU.7Retailer pageamazon.com/BW029US-Heavily-Overclocked-Systems-High-Speed/dp/B0FNMPMHRKRead 15 October 2026Title Be Quiet BW029US 360 mm Pure Loop 3 Black. The page lists the GTIN 04260052193181 for it, which is the EU number. The spec sheet shows 4260052193372 for the US model, so that one is stored.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026The review shows a photo of be quiet!'s printed spec sheet: Article no. BW029EU | BW029US.

GTIN / EAN

4895265000348, 840033403016, 4895265000355, 840033403023, 4895265000362, 8400334030301Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 20262Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026Shipping information: SKU ACFRE00181A, EAN 4895265000348, UPC 840033403016. The A-RGB sheet gives EAN 4895265000355 and UPC 840033403023 for ACFRE00185A, and EAN 4895265000362 and UPC 840033403030 for the white ACFRE00189A.

4260052193181, 42600521933725Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026EAN 4260052193181 for BW029EU, the same as on the maker's spec sheet.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Same sheet, EAN code 4260052193181 | 4260052193372, in the order of the article numbers.

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

9 July 202512Press articleclub386.com/arctic-launches-liquid-freezer-iii-pro-in-280mm-and-420mm-flavoursRead 14 October 2026Date of the Club386 launch article. ARCTIC's own release could not be opened.

26 August 20252Press articleguru3d.com/story/be-quiet-pure-loop-3-and-pure-loop-3-lx-aio-coolers-announcedRead 15 October 2026Guru3D news of 2025-08-26, which reports that be quiet! has just introduced the Pure Loop 3 and Pure Loop 3 LX.

Status

Available1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026The arctic.de store lists the black model ACFRE00181A with an add-to-cart button on the access date.

Available6Retailer pageldlc.com/en/product/PB00708304.htmlRead 15 October 2026LDLC France listed the 360 mm model as in stock at 104.95 EUR on the access date. Amazon.com lists the BW029US.

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.

$148.9912Press articleclub386.com/arctic-launches-liquid-freezer-iii-pro-in-280mm-and-420mm-flavoursRead 14 October 2026Price table: Liquid Freezer III Pro 420 regular price $148.99 with a launch discount to $98.49. The regular price is stored, not the discounted one. 3DTested also lists an MSRP of $148.99 but could not be opened.

$114.92Press articleguru3d.com/story/be-quiet-pure-loop-3-and-pure-loop-3-lx-aio-coolers-announcedRead 15 October 2026MSRP table row Pure Loop 3 360mm: $114.90. Tech-Critter (2025-08-28) gives the same US$114.90. US prices exclude tax.

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.

Not available

€104.92Press articleguru3d.com/story/be-quiet-pure-loop-3-and-pure-loop-3-lx-aio-coolers-announcedRead 15 October 2026MSRP table row Pure Loop 3 360mm: 104.90 EUR. Igor'sLAB, LDLC France and basic-tutorials.de (Germany) also give 104.90 EUR and WinFuture rounds it to 105 EUR. European prices include VAT.

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

US, EU1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026The arctic.de store sells in EUR incl. VAT. The US market comes from the Club386 launch report in USD.12Press articleclub386.com/arctic-launches-liquid-freezer-iii-pro-in-280mm-and-420mm-flavoursRead 14 October 2026USD launch prices point to the US market.

Not available

ColoursiThe maker's own colour names

Black, White1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026Product information: Colour Black. The A-RGB pages list Black (ACFRE00185A) and White (ACFRE00189A).

Black5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Product colour: black (Tuotteen väri: Musta). Gamezoom and Igor'sLAB show an all-black cooler.

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.

AIO liquid1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026

AIO liquid4Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/1Read 15 October 2026Described as the in-house AiO water cooling system, third generation, with a pump, hoses and a radiator.

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

Not available

Not available

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

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.

Copper1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026Spec sheet: Cold Plate Copper, Micro Skived Fins. No plating is stated.2Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026

Nickel-plated copper9Reviewgamezoom.net/artikel/be_quiet_Pure_Loop_3_360mm_Test_Review-58697-allRead 15 October 2026Data sheet, Kühlkörper: Kupfer (vernickelt). The maker's spec sheet says copper with nickel plating.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Spec sheet row Base material / finish: copper / nickle plating (sic).

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/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026Feature text: Includes MX-6 Thermal Paste. The spec sheet lists TIM MX-6 (0.8 g). The tube is separate from the pump.2Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026

Included5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Spec row Thermal paste: yes (Lämpörasva: Kyllä). Gamezoom's box list names a tube of thermal paste, so it is a separate tube.9Reviewgamezoom.net/artikel/be_quiet_Pure_Loop_3_360mm_Test_Review-58697-allRead 15 October 2026The box list (Ausstattung, in German) names a tube of thermal paste, one set of mounting material for AMD and Intel sockets and an assembly guide.

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/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026The product information block and the spec sheet name LGA1851, LGA1700, AM5 and AM4 under Compatibility. The shop filter line also lists Intel 115X and 1200, but the spec sheet and manual do not, so they are not stored.2Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026

AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1155, LGA1151, LGA11504Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/1Read 15 October 2026Compatible sockets: Intel LGA 1700/1200/115x, AMD AM5/AM4. The box has Intel brackets for LGA 1700, 1200 and 115x. LGA1851 is named in the maker's table as copied by Amazon US, LDLC and managerit.fi, and it uses the LGA1700 mount.5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Supported CPU sockets: LGA 1851, 1150, 1151, 1155, 1200, 1700, AM4, AM5. LGA1156 is not named, so it is not stored.6Retailer pageldlc.com/en/product/PB00708304.htmlRead 15 October 2026Processor support: AMD AM4, AM5 and Intel 1150, 1151, 1155, 1200, 1700, 1851.7Retailer pageamazon.com/BW029US-Heavily-Overclocked-Systems-High-Speed/dp/B0FNMPMHRKRead 15 October 2026Compatible devices: Intel sockets 1851/1700/1200/1151/1150/1155 and AMD sockets AM5/AM4.9Reviewgamezoom.net/artikel/be_quiet_Pure_Loop_3_360mm_Test_Review-58697-allRead 15 October 2026Compatible with AMD AM5, AM4 and Intel 1851, 1700, 1150/1151/1155/1156/1200. The 1156 socket is not stored because the maker's table does not name it.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Spec sheet: Intel 1851 / 1700 / 1200 / 1150 / 1151 / 1155 and AMD AM5 / AM4.

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.

Yes1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026Feature text: Offset Mounting for Intel and AMD shifts the cold plate to the CPU hotspot.6Owner's manualsupport.arctic.de/liquid-freezer-III-pro-420Read 14 October 2026AM4 step: the offset mounting leaves parts of the heatspreader visible because the CPU hotspot is off-centre.

Not available

Heatsink

None of 3 known

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.

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Liquid cooling

5 of 7 differ

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

420mm1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026Product information: Radiator Size 420.

360mm4Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/1Read 15 October 2026The product is the Pure Loop 3 360 mm with three 120 mm fans on a 397 mm radiator.

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.

Length458Width138Thickness38mm(18 × 5.4 × 1.5 in)1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 20262Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026General specifications: radiator dimensions 458 (L) x 138 (W) x 38 (H) mm, material aluminium.

Length397Width120Thickness27mm(15.6 × 4.7 × 1.1 in)4Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/1Read 15 October 2026Radiator size 397 x 120 x 27 mm, aluminum. LDLC and managerit.fi list the same length, width and 27 mm height.5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Radiator width 12 cm, depth 39.7 cm, height 2.7 cm. The listing orders them by its own labels. Read by direction, length runs along the fans at 397 mm.6Retailer pageldlc.com/en/product/PB00708304.htmlRead 15 October 2026Height 27 mm, 120 mm wide and 397 mm long, and 52 mm with fans. The page labels the 397 mm length as depth.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Spec sheet, Radiator specification: 397 x 120 x 27 mm. The sheet's labels are H x W x D, so 397 mm is the length along the fans. The text says 27 mm thick and 52 mm with fans.

Radiator material

Aluminium1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 20262Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026

Aluminium4Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/1Read 15 October 202610Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Spec sheet: aluminum / black spray painted.

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.

500mm1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 20262Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026General specifications: tube length 500 mm, outer 12.4 mm, inner 6.0 mm. Club386 says 450 mm, which is the 360 mm model's figure, so the sheet is followed.11Reviewkitguru.net/components/cooling/james-dawson/arctic-liquid-freezer-iii-pro-420-aio-cpu-cooler-review/all/1Read 14 October 2026Specifications list: radiator tube length 500mm.

400mm4Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/1Read 15 October 2026Hose length 400 mm, sleeved.5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Tube length 40 cm.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026The text says 400 mm long sleeved tubes.11Reviewprofesionalreview.com/2025/12/01/be-quiet-pure-loop-3-review/ampRead 15 October 2026Hoses 400 mm long, 11 mm diameter.

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

2,800rpm1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 20262Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026Pump 800 to 2800 rpm, PWM controlled.

5,500rpm4Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/1Read 15 October 2026Pump speed: > 5500 rpm, PWM controlled, 6-pole 3-phase motor. The maker's range is 3000 to 5500 rpm, so 5500 is stored.5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Pump motor speed 5500 RPM, minimum 3000 RPM, maximum 5500 RPM.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Spec sheet: Pump speed max. 5500 rpm, operation range 3000 to 5500 rpm.11Reviewprofesionalreview.com/2025/12/01/be-quiet-pure-loop-3-review/ampRead 15 October 2026PWM pump from 3000 to 5500 RPM with a 6-pole motor.

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.

4-pin PWM fan header6Owner's manualsupport.arctic.de/liquid-freezer-III-pro-420Read 14 October 2026Connect the PWM control cable: the all-in-one cable has one 4-pin plug and the individual cable has three 4-pin plugs. Headers must be set to PWM. The spec sheet shows a 4-Pin Fan Plug for the pump.

4-pin PWM fan header4Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/1Read 15 October 2026Connections: PWM 4-pin (pump) and PWM 4-pin (fan).5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Pump connector: 4-pin.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Spec sheet: Pump connector 4-pin PWM.

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

Yes1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 20262Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026

No5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026The feed lists 3 fans in total, all three 120 mm radiator fans, and Gamezoom's box list names no other fan.

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 Liquid Freezer III Pro 420

Model	Size (mm)	Fans	Min speed (rpm)	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Bearing	Connector
P14 Pro	140	3	400	2,500	110	5.2	Fluid dynamic (FDB)	4-pin PWM

Source1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026Radiator fans: 3x P14 Pro, 400 to 2500 rpm, 110 cfm, 5.2 mmH2O, fluid dynamic bearing, 4-pin fan plug. The page and sheet state no noise level, so noise_dba is left out. The VRM fan (400 to 2500 rpm, 0.05 A) is not in the table.2Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026Radiator fan specifications as on the product page. 0.35 A at 12 V DC.

Bbe quiet! Pure Loop 3 360mm

Model	Size (mm)	Fans	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
Pure Wings 3 120mm PWM high-speed	120	3	2,100	59.6	2.41	30.9	Rifle	4-pin PWM

Source4Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/1Read 15 October 2026Table: 3x Pure Wings 3 high-speed PWM, 120 x 120 x 25 mm, up to 2100 rpm, 2.41 mmH2O per fan, max. 36.8 dB(A). The table also says approx. 72 CFM per fan, which conflicts with the 59.6 CFM that the maker's fan table, the maker's feed and ProfesionalReview give, so the 59.6 CFM is stored.5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Fan specs copied from the maker's data: fan diameter 12 cm, airflow 101.2 m3/h (59.6 cfm), max static pressure 2.41 mmH2O, rifle bearing, max speed 2100 RPM, MTTF 80000 h, 3 fans with 9 blades, daisy chain: yes, fan size 120 x 120 x 25 mm. Noise rows: 17.6 dB low speed and 37.2 dB high speed for the cooler.8Retailer pageinside-tech.co.uk/fans/be-quiet-pure-wings-3-120mm-pwm-high-speed-case-fan-rifle-bearing-newly-designed-fan-blades-and-re-arranged-angle-for-extraordinary-air-pressure-3-years-warrantyRead 15 October 2026Copy of be quiet!'s data sheet for the Pure Wings 3 120mm PWM high-speed (BL106): 2100 rpm, 30.9 dB(A), 59.6 CFM (101.2 m3/h), 2.41 mm H2O, all at 100% PWM and 12 V, rifle bearing, 4-pin PWM. This is the figure for one fan, so it is stored as the fan noise. The maker's cooler table prints 17.6, 29.3 and 37.2 dB(A) at 50, 75 and 100% for the whole cooler, and the launch press says up to 36.8 dB(A), which are not per-fan values. The cooler's fans have a daisy-chain cable, which the stand-alone fan does not have. Their airflow and pressure match the maker's feed for the cooler.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Spec sheet: Pure Wings 3 fans, 120 x 120 x 25 mm, quantity 3, speed at 100% PWM 2100 rpm, connector 4-pin PWM, lifespan 80,000 h. The review text gives the three daisy-chained fans as closed loop motor, 4 poles, 2100 RPM, 59.6 CFM, 2.41 mmH2O and 30.9 dBA. The spec sheet noise row 17.6 / 29.3 / 37.2 dB(A) at 50 / 75 / 100% rpm has no per-fan label and is not stored as fan noise.11Reviewprofesionalreview.com/2025/12/01/be-quiet-pure-loop-3-review/ampRead 15 October 2026Three Pure Wings 3 120 mm PWM high-speed fans, 9 blades, 4-pole motor, rifle bearing, max 2100 RPM, 59.6 CFM, 2.41 mmH2O, 80,000 h. It states a max noise of 37.5 dBA, which is not stored.

FansiNumber of included heatsink or radiator fans.

3=CalculatedFrom Included fans

3=CalculatedFrom Included fans

Display and lighting

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

No1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026Lighting: none. The A-RGB editions ACFRE00185A and ACFRE00189A are variant rows.

No2Press articleguru3d.com/story/be-quiet-pure-loop-3-and-pure-loop-3-lx-aio-coolers-announcedRead 15 October 2026The standard Pure Loop 3 skips RGB entirely, and the MSRP table lists no ARGB for the 360mm model.5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026LED lighting: no (Led-valaisu: Ei).

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

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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.

None1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026No screen on the pump block. Lighting: none.

None5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Display type: not applicable.

Screen sizeiDiagonal of the built-in screen.

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Screen resolution

Not available

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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.

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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/liquid-freezer-III-pro-420Read 14 October 2026The installation steps and both quick start guides connect only PWM cables. No USB cable is supplied or mentioned.

No11Reviewprofesionalreview.com/2025/12/01/be-quiet-pure-loop-3-review/ampRead 15 October 2026The connection steps use only the fans' PWM header (CPU_FAN) and the pump's header (AIO_PUMP). 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.

Platinum9Measurementcybenetics.com/evaluations/coolers/97Read 14 October 2026Report ACCLR00097 is for the Liquid Freezer III Pro 420 A-RGB (P14 Pro A-RGB fans, 2360 g), tested Sep 19 to Oct 4, 2025. THETA Platinum, AIO, AM5, Ryzen 9 7900X, default mount, rated at 30 dB(A). The maker lists the same radiator and the same fan figures for the plain model, so the A-RGB report is used. Evaluated before Revision 2.0 under Revision 1.8. The report has no Intel LGA1851 results, so the LGA1851 fields are empty.

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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.

11,6699Measurementcybenetics.com/evaluations/coolers/97Read 14 October 2026Overall Performance 11,669 at 30 dB(A) on a Ryzen 9 7900X (PBO enabled).

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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.

46.7dB(A)9Measurementcybenetics.com/evaluations/coolers/97Read 14 October 202646.7 dB(A) at the 100% fan setting (2366, 2400 and 2385 rpm). Hemi-anechoic chamber with a 6 dB(A) noise floor, Bruel & Kjaer 2270 G4 analyser with a 4955-A microphone, microphone 1 m from the cooler. The protocol keeps the AIO pump at full speed and does not separate its noise.

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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.

AARCTIC Liquid Freezer III Pro 420

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	198.9	20 dB(A)	20	92.5	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	202.1	25 dB(A)	25	90.9	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	201.5	30 dB(A)	30	90.2	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	203.4	35 dB(A)	35	89.9	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	204.1	40 dB(A)	40	88.7	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	204.8	100%	46.7	88.7	Not available
AMD Ryzen 9 9950X	Manual overclock, all-core 5.2 GHz at 1.3 V, Cinebench R23 30-minute loop, steady state	Not available	100%	51	Not available	59
AMD Ryzen 9 9950X	Manual overclock, all-core 5.2 GHz at 1.3 V, Cinebench R23 30-minute loop, steady state	Not available	40 dB(A)	40	Not available	61
AMD Ryzen 9 9950X	Precision Boost Overdrive, Cinebench R23 30-minute loop, average package power	254	Not available	Not available	Not available	Not available

Source9Measurementcybenetics.com/evaluations/coolers/97Read 14 October 2026Cybenetics Cooling Solutions Test Protocol, A-RGB edition, AM5 platform only. Ambient 25 C plus or minus 0.5 C and 30% humidity in a climate chamber, open Cooler Master Test Bench, Prime95 Small FFTs, averages of the last 4 minutes, Arctic MX-4 paste for all tests (protocol PDF), Default mount, pump at full speed. CPU power at the EPS connectors. The report does not publish a temperature above ambient. Fans reach 46.7 dB(A) at 100%.10Measurementcybenetics.com/data/Cybenetics%20Cooling%20Solutions%20Test%20Protocol_en.pdfRead 14 October 2026Test Protocol Revision 2.2: Prime95 Small FFTs for at least 10 minutes per level, values averaged over the last 4 minutes, ambient 25 C plus or minus 0.5 C, humidity 30%, Arctic MX-4 for all tests, one mount per platform, AMD test system Ryzen 9 7900X with PBO enabled. This cooler was tested under the older Revision 1.8 procedure.11Reviewkitguru.net/components/cooling/james-dawson/arctic-liquid-freezer-iii-pro-420-aio-cpu-cooler-review/all/1Read 14 October 2026James Dawson, review of 2025-08-20. AMD Ryzen 9 9950X on an ASRock X870E Nova WiFi, open test bench, Arctic MX-6 paste, Windows 11 24H2, ambient held at 19 to 21 C, at least two fresh installs. Manual overclock: all-core 5.2 GHz at 1.3 V, 30-minute Cinebench R23 loop, steady state. Row 1: fans at 100%, 51 dBA, 59 C over ambient. Row 2: fans locked to 40 dBA (almost 1600 rpm), 61 C over ambient. Row 3: Precision Boost Overdrive, the cooler held 254 W package power, and the fan setting is not stated. The charts give no other numbers. The noise distance is not stated.

Bbe quiet! Pure Loop 3 360mm

Test CPU	Load	CPU power (W)	Fan setting	Noise (dB(A))	CPU temperature (°C)	Above ambient (°C)
AMD Ryzen 9 7900X	Prime95 30.8b17 Small FFTs, 200 W power limit, 20 minute run	200	100%	47	Not available	60
AMD Ryzen 5 7600X	PPT limited to 80 W, PBO manual with Curve Optimizer -25, 24 hour stress test	80	Not available	Not available	60	Not available
AMD Ryzen 5 7600X	Stock settings with PPT at 142 W, 24 hour stress test	Not available	Not available	36	88	Not available
Intel Core Ultra 9 285K	OCCT, 6 to 10 minutes	Not available	Highest setting, set by the PWM fans	55.8	81	Not available

Source10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026NikkTech, review of 2025-09-09. Intel Core Ultra 9 285K, OCCT for about 6 to 10 minutes, thermal paste Noctua NT-H2, 23 C room, test rig not named in the text, radiator at the top. The temperature chart shows 81 C load (idle 33, average 38). Noise load 55.8 dBA (idle 30.4) from an ExTech HD600 meter 10 to 15 cm above the radiator with the system fans off, so it is not comparable with 1 m figures. The PWM fans run at the highest speed under extreme load without an external controller.11Reviewprofesionalreview.com/2025/12/01/be-quiet-pure-loop-3-review/ampRead 15 October 2026ProfesionalReview, review of 2025-12-01. AMD Ryzen 5 7600X on an X670E AORUS Master, bench not named, ambient 24 C, 24 hour stress test. Row 1: PPT limited to 80 W, PBO manual with Curve Optimizer -25, 60 C with the peaks almost identical. Row 2: stock settings with PPT at maximum (142 W), about 88 C almost constant and below 90 C. The text says the peak power was 134 W in the test section and 138 W in the conclusion, so the power is not stored for row 2. Noise 36 dBA is the stress-test level with the stock CPU, measured with a sound level meter 50 cm from the bench in a 30 dBA room. Fan speed and paste are not stated.12Reviewigorslab.de/en/be-quiet-pure-loop-3-schlicht-leise-effizient/3Read 15 October 2026Igor'sLAB, Enrico Steinert, review of 2025-09-09. AMD Ryzen 9 7900X on a ROG Crosshair X670E Hero on an open bench table, room 19.0 to 20.5 C, Prime95 30.8b17 Small FFTs for 1200 s, HWiNFO64 CPU Die (Average), the same thermal paste on every cooler applied with the X-Apply tool (paste brand not stated). Noise was measured with a Voltcraft SL-10 at 40 cm in a room of 30.4 dB(A): 47 dB(A) at 100% PWM. The limits tested were 100, 150 and 200 W. The 200 W row stores the 60 K delta over ambient from the conclusion page, which does not say which fan setting it belongs to. The Maximum RPM chart ends near 60 K and the 40 dB(A) chart near 61 K, so the row is stored under 100%. The 200 W is the CPU power limit, not a measured draw.

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.

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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.

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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.

2,370g(5.2 lb)1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026Spec sheet: weight 2370 g. Gross shipping weight is 2994 g.2Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026

1,250g(2.8 lb)5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Weight 1.25 kg. Package weight 1.75 kg is not stored.6Retailer pageldlc.com/en/product/PB00708304.htmlRead 15 October 2026Weight 1250 g.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Spec sheet: Total weight 1250 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.

VRM fan module, CPU contact frame (Intel), PWM cable (all in one), PWM cable (individual control), Metal flat washers, Screws, Shoulder screws (Intel), Mounting clips set (AMD), Spacers (AMD), T20 driver, MX-6 thermal paste (0.8 g)7Owner's manualsupport.arctic.de/products/liquid-freezer-iii-pro-420/techdocs/Quick_Manual_Intel_r1b.pdfRead 14 October 2026Packaging Content on the Intel quick start guide for the Liquid Freezer III Pro series: VRM fan module, CPU contact frame, two PWM cables, metal flat washers, screws, shoulder screws, T20 driver and MX-6 (0.8 g). The guide covers all sizes and lists screw counts as x8/x12. It lists no item that only an A-RGB edition has. The AMD guide adds a mounting clips set and four spacers.8Owner's manualsupport.arctic.de/products/liquid-freezer-iii-pro-420/techdocs/Quick_Manual_AMD_r1b.pdfRead 14 October 2026AMD quick start guide: mounting clips set x1, spacers x4, VRM fan module, two PWM cables, washers, screws and MX-6 (0.8 g).

Pure Loop 3 360mm cooler, 3x Pure Wings 3 120mm PWM high-speed fans, Fan extension cable, 3x cable ties, Thermal paste tube, Warranty information, User manual, Intel backplate, Mounting parts for Intel LGA 1150, 1151, 1155, 1200, 1700 and 1851 and AMD AM4 and AM510Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Packaging and contents section, rewritten as a list: the cooler with its 3 fans, a fan extension cable, 3 cable ties, a thermal paste tube, warranty information, a user manual, an Intel backplate and all the parts to mount on Intel LGA 1150/1151/1155/1200/1700/1851 and AMD AM4/AM5. It says no bottle of coolant is included. The list is not the maker's wording.

Links

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Product page

www.arctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181A1Maker product pagearctic.de/en/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026

www.bequiet.com/en/watercooler/61391Maker product pagebequiet.com/en/watercooler/6139Read 15 October 2026The URL is from a search result titled Article number: BW029EU. The page was not opened because bequiet.com is blocked. No value rests on it.

Spec sheet

www.arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdf2Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026

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Manual

support.arctic.de/liquid-freezer-III-pro-4206Owner's manualsupport.arctic.de/liquid-freezer-III-pro-420Read 14 October 2026

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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.

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/Liquid-Freezer-III-Pro-420/ACFRE00181ARead 14 October 2026Spec sheet and product page: 6 Years. The ARCTIC warranty page says six years for the entire product range and names no market.2Maker spec sheet (PDF)arctic.de/media/b2/dc/e3/1749041473/Spec_Sheet_Liquid_Freezer_III_Pro_420_EN.pdfRead 14 October 2026

3years3Press articlewinfuture.de/news,153255.htmlRead 15 October 2026All coolers get a three-year manufacturer warranty. Igor'sLAB and LDLC France list the same 3 years from be quiet! (LDLC also prints a 2 year seller warranty).5Retailer pagemarket.managerit.fi/be-quiet-pure-loop-3-360mm/cat-p/c/p1006206594Read 15 October 2026Warranty 3 years.10Reviewnikktech.com/main/articles/pc-hardware/cpu-cooling/liquid-cpu-coolers/15774-be-quiet-pure-loop-3-360mm-aio-liquid-cpu-cooler-reviewRead 15 October 2026Spec sheet: 3-year manufacturer's warranty.

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