CPU coolers / Compare

DeepCool AK620 G2 vs Noctua NH-D15 G2

A

Product A: DeepCool

AK620 G2

29 of 54 known

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B

Product B: Noctua

NH-D15 G2

36 of 54 known

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Only differences

ADeepCool AK620 G2

BNoctua NH-D15 G2

General

6 of 12 differ

Series

AK G25Press releaseglobal.deepcool.com/company/pressroom/newsrelease/2025/22352.shtmlRead 14 October 2026The release names the family AK G2 with 4, 5 and 6 heat pipe models. The release gives no prices.

Not available

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

R-AK620G2-BKNNMN-GJD, R-AK620G2-WHNNMN-GJD1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Black: P/N R-AK620G2-BKNNMN-GJD. The white page 21863 gives R-AK620G2-WHNNMN-GJD. The AK620 G2 DIGITAL NYX is a separate model with its own page and is not this product.2Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-WH-Wood-Grain-Top-Cover-CPU-Cooler/2025/21863.shtmlRead 14 October 2026White: P/N R-AK620G2-WHNNMN-GJD.6Press articlegdm.or.jp/pressrelease/2025/1121/612865Read 14 October 2026AK620 G2 R-AK620G2-BKNNMN-GJD and AK620 G2 WH R-AK620G2-WHNNMN-GJD.

NH-D15 G2, NH-D15 G2 chromax.black, NH-D15 G2 LBC, NH-D15 G2 HBC2Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026Noctua gives no separate model codes. The model names are NH-D15 G2 (Standard), NH-D15 G2 LBC and NH-D15 G2 HBC. The chromax.black name comes from its own page.

GTIN / EAN

6933412729693, 69334127297091Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Black EAN 6933412729693. The white page gives EAN 6933412729709.2Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-WH-Wood-Grain-Top-Cover-CPU-Cooler/2025/21863.shtmlRead 14 October 2026White EAN 6933412729709.

9010018000405, 9010018000535, 9010018000429, 90100180004362Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026EAN 9010018000405 for the Standard version, 9010018000429 for LBC and 9010018000436 for HBC.3Retailer pagequietpc.com/nh-d15-g2-ch-bkRead 14 October 2026EAN 9010018000535 for the NH-D15 G2 chromax.black. The Noctua spec page (Chinese version, seen in search results) gives the same EAN.

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

4 November 20255Press releaseglobal.deepcool.com/company/pressroom/newsrelease/2025/22352.shtmlRead 14 October 2026Press release dated November 4, 2025 for the AK G2 series.7Press articlekitguru.net/components/cooling/matthew-wilson/deepcool-debuts-2nd-gen-ak-and-ak-digital-cpu-coolersRead 14 October 2026Article of November 4, 2025.

2 July 20245Press articlefunkykit.com/news/noctua-releases-its-nh-d15-g2-next-gen-flagship-cpu-coolers-and-nf-a14x25r-g2-fansRead 14 October 2026Announced and released on 2 July 2024.6Press articleguru3d.com/story/noctua-introduces-nhd15-g2-cpu-coolers-and-nfa14x25r-g2-140mm-fansRead 14 October 2026Story of 2 July 2024.7Press articleclub386.com/noctua-nh-d15-g2-flagship-cpu-cooler-is-hereRead 14 October 2026Article of 2 July 2024.

Status

Available12Retailer pagejbhifi.com.au/products/deepcool-ak620-g2-wood-grain-top-cover-cpu-coolerRead 14 October 2026On sale at JB Hi-Fi with delivery available on the access date. The spec table copies DeepCool's figures and lists a 36 months manufacturer's warranty.

Available2Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026On sale with stock 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

Noctua NH-D1518Reviewtomshardware.com/pc-components/air-cooling/noctua-nh-d15-g2-reviewRead 23 October 2026Tom's Hardware's review calls the NH-D15 G2 the successor of the NH-D15.19Reviewpcgamer.com/hardware/cooling/noctua-nh-d15-g2-reviewRead 23 October 2026PC Gamer's review calls the NH-D15 G2 a long-awaited successor to the NH-D15.20Press articleheise.de/en/news/Noctua-s-best-CPU-cooler-gets-a-successor-after-10-years-9788774.htmlRead 23 October 2026Heise reports that the NH-D15 G2 replaces the previous NH-D15.

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.

Not available

$149.95Press articlefunkykit.com/news/noctua-releases-its-nh-d15-g2-next-gen-flagship-cpu-coolers-and-nf-a14x25r-g2-fansRead 14 October 2026Suggested retail price USD 149.90 for the NH-D15 G2, LBC and HBC. Tax treatment is not stated.6Press articleguru3d.com/story/noctua-introduces-nhd15-g2-cpu-coolers-and-nfa14x25r-g2-140mm-fansRead 14 October 2026USD 149.90 each for the NH-D15 G2, LBC and HBC.7Press articleclub386.com/noctua-nh-d15-g2-flagship-cpu-cooler-is-hereRead 14 October 2026Article of 2 July 2024: $149.90 on Amazon.

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.

€69.997Press articlekitguru.net/components/cooling/matthew-wilson/deepcool-debuts-2nd-gen-ak-and-ak-digital-cpu-coolersRead 14 October 2026The standard AK G2 models in black and white are priced at EUR 69.99 for the AK620 G2. Funkykit reports the same EUR 69.99 for the AK620 G2 (WH). The price includes VAT. The DeepCool release gives no prices.8Press articlefunkykit.com/news/deepcool-also-introduces-new-ak-g2-cpu-air-coolersRead 14 October 2026MSRP AK620 G2 (WH) EUR 69.99.

€149.95Press articlefunkykit.com/news/noctua-releases-its-nh-d15-g2-next-gen-flagship-cpu-coolers-and-nf-a14x25r-g2-fansRead 14 October 2026Suggested retail price EUR 149.90 for the NH-D15 G2, LBC and HBC. Whether VAT is included is not stated. The chromax.black price is not stored because the sources disagree on it.7Press articleclub386.com/noctua-nh-d15-g2-flagship-cpu-cooler-is-hereRead 14 October 2026EUR 149.90 on Amazon, with GBP 127.95. Tax treatment 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

Black, White1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Black on this page. White on the AK620 G2 WH page 21863 with identical specs.2Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-WH-Wood-Grain-Top-Cover-CPU-Cooler/2025/21863.shtmlRead 14 October 2026White edition with the same technical spec table.9Reviewtomshardware.com/pc-components/air-cooling/deepcool-ak620-and-ak400-g2-review-quiet-and-powerful-with-woodgrain-or-a-digital-displayRead 14 October 2026Black or white, with woodgrain or digital display options.

Brown, Black3Retailer pagequietpc.com/nh-d15-g2-ch-bkRead 14 October 2026All-black heatsink, fans, fan clips and mounting hardware.8Press articleguru3d.com/story/noctua-launches-nhd15-g2-chromaxblack-and-updated-a14x25-fanRead 14 October 2026Matte-black finish on heatsink, fan frames, rotors and accessories.9Reviewtech4gamers.com/nh-d15-g2-chromax-black-reviewRead 14 October 2026The original NH-D15 G2 comes in the traditional brown and beige colour scheme. The chromax.black is all black. Retailer listing titles name the standard model as Brown. Noctua's own spec page could not be read.

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 pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Air cooler with two 120 mm fans.

Air2Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026

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

Dual tower1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026

Dual tower13Reviewigorslab.de/en/noctua-nh-d15-g2-chromax-black-review-return-of-the-king-in-blackRead 14 October 2026Dual tower with 58 aluminium fins in two stacks.

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.

300W3Maker product pagedeepcool.com/ProductCompatibilityS_New/Default.aspxRead 14 October 2026Thermal Design Power (TDP) and CPU Socket Compatibility List: AK620 G2 300 W, and the same for AK620 G2 WH.6Press articlegdm.or.jp/pressrelease/2025/1121/612865Read 14 October 2026Text for the AK620 G2: supports a TDP of up to 300 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 copper1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Text: precision-machined copper base. The page does not mention plating. HW Laboratory calls it nickel-plated copper.6Press articlegdm.or.jp/pressrelease/2025/1121/612865Read 14 October 2026Precision-machined copper base plate.11Reviewhwlaboratory.com/2026/05/07/deepcool-ak620-g2-review-air-cooler-pertama-bermotifkan-serat-kayu/2Read 14 October 2026Page 1 describes the base plate as copper wrapped in nickel (nickel-plated) that touches the six heat pipes. The maker only says copper.

Nickel-plated copper4Retailer pageeshop.enzure.se/noctua-nh-d15-g2/cat-p/c/p1004921255Read 14 October 2026Materials: copper base and heat pipes, aluminium fins, soldered joints, nickel plating. Igor's Lab states that the base plate itself is nickel plated.13Reviewigorslab.de/en/noctua-nh-d15-g2-chromax-black-review-return-of-the-king-in-blackRead 14 October 2026The base plate is made of nickel-plated CU1100 copper with a purity of 99.95 percent, 44.6 x 51.6 mm, mirror-polished.

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

Included9Reviewtomshardware.com/pc-components/air-cooling/deepcool-ak620-and-ak400-g2-review-quiet-and-powerful-with-woodgrain-or-a-digital-displayRead 14 October 2026The AK620 G2 includes a tube of thermal paste.

Included2Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026NT-H2 thermal compound is a separate item in the box. Nothing says it is pre-applied.5Press articlefunkykit.com/news/noctua-releases-its-nh-d15-g2-next-gen-flagship-cpu-coolers-and-nf-a14x25r-g2-fansRead 14 October 2026NT-H2 thermal compound included.

Compatibility

2 of 3 differ

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, LGA11501Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Application for Intel LGA1851/1700/1200/1151/1150/1155 and AMD AM5/AM4.3Maker product pagedeepcool.com/ProductCompatibilityS_New/Default.aspxRead 14 October 2026The row marks LGA1851, LGA1700, LGA1200, LGA115X and AM5, AM4 and no LGA20XX or Threadripper sockets.4Owner's manualdeepcool.com/download/pdf/AK620_G2_Series.pdfRead 14 October 2026Installation pages show Intel LGA1851/1700/1200/115X and AMD AM5/AM4.9Reviewtomshardware.com/pc-components/air-cooling/deepcool-ak620-and-ak400-g2-review-quiet-and-powerful-with-woodgrain-or-a-digital-displayRead 14 October 2026

AM5, AM4, LGA1954, LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA11502Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026Spec table: AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151 and LGA1150. LGA1954 is added from Noctua's FAQ, see the Club386 source.11Press articleclub386.comRead 14 October 2026Article of 27 November 2025 quoting Noctua's FAQ: all Noctua CPU coolers compatible with LGA1851 and LGA1700 are also compatible with Intel's LGA1954 socket, and no additional mounting parts are needed.12Reviewclub386.com/noctua-nh-d15-g2-chromax-black-reviewRead 14 October 2026Spec table of the chromax.black lists LGA1954, LGA1851, LGA1700, LGA1200 and LGA115x for Intel and AM4 and AM5 for AMD.14Reviewhwcooling.net/en/noctua-nh-d15-g2-meeting-all-our-expectations-reviewRead 14 October 2026Intel LGA 115x, 1200, 1700 and 20xx and AMD AM4 and AM5. The 20xx sockets are for the LBC version and are not 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

32mm2Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026The page says the recessed lower fin stack gives up to 59 mm clearance with a single fan. In the dual-fan configuration it recommends standard-height memory up to 32 mm. The two-fan figure is stored because the field counts all included fans in their standard position.14Reviewhwcooling.net/en/noctua-nh-d15-g2-meeting-all-our-expectations-reviewRead 14 October 2026Review of 17 July 2024: for memory modules up to 32 mm in height the front fan can stay in its default position.

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 pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Text: the all-metal mounting bracket kit offers an offset mounting solution.4Owner's manualdeepcool.com/download/pdf/AK620_G2_Series.pdfRead 14 October 2026Page 17: the base mounting bracket has a position adjustment. For Intel LGA1851 CPUs offset the cooler 5 mm upward. For AMD AM5 CPUs offset the cooler 5 mm downward. 0 offset is the standard position.5Press releaseglobal.deepcool.com/company/pressroom/newsrelease/2025/22352.shtmlRead 14 October 2026Exclusive to the AK620 G2, the offset mounting solution enhances RAM clearance and multi-platform compatibility.11Reviewhwlaboratory.com/2026/05/07/deepcool-ak620-g2-review-air-cooler-pertama-bermotifkan-serat-kayu/2Read 14 October 2026The AM5 offset shifts the base plate about 5 mm from the standard position. The reviewer used it.

Yes5Press articlefunkykit.com/news/noctua-releases-its-nh-d15-g2-next-gen-flagship-cpu-coolers-and-nf-a14x25r-g2-fansRead 14 October 2026The standard cooler includes offset mounting for AM5.14Reviewhwcooling.net/en/noctua-nh-d15-g2-meeting-all-our-expectations-reviewRead 14 October 2026AM5 offset mounting up to 7 mm off the centre of the heat spreader.

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.

61Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Heatpipe: 6 pcs.6Press articlegdm.or.jp/pressrelease/2025/1121/612865Read 14 October 2026Six heat pipes of 6 mm diameter (phi 6 mm x 6).

82Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026Eight heat pipes.

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

6mm1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 20266Press articlegdm.or.jp/pressrelease/2025/1121/612865Read 14 October 2026

6mm12Reviewclub386.com/noctua-nh-d15-g2-chromax-black-reviewRead 14 October 2026Spec table: heat pipes 8 x 6 mm.13Reviewigorslab.de/en/noctua-nh-d15-g2-chromax-black-review-return-of-the-king-in-blackRead 14 October 2026Spec table: heat pipes 8, nickel-plated copper, 6 mm.

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

No11Reviewhwlaboratory.com/2026/05/07/deepcool-ak620-g2-review-air-cooler-pertama-bermotifkan-serat-kayu/2Read 14 October 2026The base plate sits between the CPU and the six heat pipes, so the pipes do not touch the CPU directly.

No13Reviewigorslab.de/en/noctua-nh-d15-g2-chromax-black-review-return-of-the-king-in-blackRead 14 October 2026The review describes a base plate as the contact surface and no direct-touch heat 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.

ADeepCool AK620 G2

Size (mm)	Fans	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
120	2	2,000	57.76	2.78	28.87	Hydraulic	4-pin PWM

Source1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Technical spec: fan 120 x 120 x 25 mm, speed 2000 +/-10% rpm (max), airflow 57.76 CFM, air pressure 2.78 mmAq (read as mmH2O), noise <= 28.87 dB(A), 4-pin PWM, hydro bearing (the text says hydraulic bearings), 12 VDC 0.19 A. The page shows one set of figures for the two fans and gives no fan model name. Tom's Hardware says the two fans are essentially the same model. The 28.87 dB(A) is labelled Fan Noise and is a ceiling.9Reviewtomshardware.com/pc-components/air-cooling/deepcool-ak620-and-ak400-g2-review-quiet-and-powerful-with-woodgrain-or-a-digital-displayRead 14 October 2026Review states the two included fans are essentially the same model, 2000 rpm +/-10%, 57.76 CFM, 2.78 mmAq.

BNoctua NH-D15 G2

Model	Size (mm)	Fans	Min speed (rpm)	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
NF-A14x25r G2 PWM	140	2	300	1,500	91.6	2.56	24.8	SSO or SSO2	4-pin PWM

Source2Retailer pagequietpc.com/nh-d15-g2Read 14 October 20262x NF-A14x25r G2 PWM, 1500 rpm maximum (1250 rpm with the low-noise adaptor), 24.8 dB(A) maximum, control range 300 to 1500 rpm. The page lists airflow as 91.8 CFM, but 155.6 m3/h from Noctua and the other sources converts to 91.6 CFM with 0.5886, so 91.6 is stored.4Retailer pageeshop.enzure.se/noctua-nh-d15-g2/cat-p/c/p1004921255Read 14 October 2026NF-A14x25r G2 PWM: SSO2 bearing, 1500 rpm, 155.6 m3/h, 24.8 dB(A), 4-pin PWM.14Reviewhwcooling.net/en/noctua-nh-d15-g2-meeting-all-our-expectations-reviewRead 14 October 2026Comparison table for the NF-A14x25r G2: SSO2 bearing, speed range 300 to 1500 rpm, 155.6 m3/h and 2.56 mmH2O.15Reviewhwbusters.com/cooling/noctua-nh-d15-g2-review-standard-lbc-hbc-comparisonRead 14 October 2026Spec table: static pressure 2.56 mmH2O, 91.58 CFM and 155.6 m3/h, 24.8 dB(A), SSO2 bearing, 4-pin PWM. Cybenetics rated the G2 fans Diamond and Titanium in its fan standard, which is not stored.

FansiNumber of included heatsink or radiator fans.

2=CalculatedFrom Included fans

2=CalculatedFrom Included fans

Display and lighting

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

No9Reviewtomshardware.com/pc-components/air-cooling/deepcool-ak620-and-ak400-g2-review-quiet-and-powerful-with-woodgrain-or-a-digital-displayRead 14 October 2026Spec table: Lighting None.

No3Retailer pagequietpc.com/nh-d15-g2-ch-bkRead 14 October 2026Spec 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.

None9Reviewtomshardware.com/pc-components/air-cooling/deepcool-ak620-and-ak400-g2-review-quiet-and-powerful-with-woodgrain-or-a-digital-displayRead 14 October 2026The wood-grain AK620 G2 has no screen. The Nyx version of the AK620 G2 is the one with the digital display.

None2Retailer pagequietpc.com/nh-d15-g2Read 14 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

No10Owner's manualmanua.ls/noctua/nh-d15-g2/manualRead 14 October 2026Hosted copy of the Noctua NH-D15 G2 installation guide. The fans connect to the motherboard CPU fan header, with the NA-YC1 splitter cable for two fans. No USB cable or software is mentioned.

Measured

6 of 6 differ

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

Platinum16Measurementcybenetics.com/evaluations/coolers/72Read 14 October 2026Report of the NH-D15 G2 LBC (Lab ID NCCLR00072, tested 11 July 2024). Cybenetics tested the LBC version on AM5 only. The Standard version has no report. LBC differs only in base convexity from the Standard model, which Noctua lists with the same heatsink and fans. THETA Platinum, air class, rated at 30 dB(A), Ryzen 9 7900X, Default mount. 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

Platinum17Measurementcybenetics.com/evaluations/coolers/20Read 14 October 2026Report of the NH-D15 G2 HBC (Lab ID NCCLR00020, tested 7 July to 14 December 2024). Cybenetics tested the HBC version on LGA1851 only. The Standard version has no report. HBC differs only in base convexity from the Standard model. THETA Platinum, air class, rated at 30 dB(A), Core Ultra 9 285K, Default mount, protocol revision 1.8.

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.

Not available

10,46516Measurementcybenetics.com/evaluations/coolers/72Read 14 October 2026Overall Performance 10,465 at 30 dB(A) on the Ryzen 9 7900X for the LBC version.

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

13,97617Measurementcybenetics.com/evaluations/coolers/20Read 14 October 2026Overall Performance 13,976 at 30 dB(A) on the Core Ultra 9 285K (Intel default mode) for the HBC version.

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.

Not available

36.6dB(A)16Measurementcybenetics.com/evaluations/coolers/72Read 14 October 202636.6 dB(A) at the 100% fan setting (1494 and 1536 rpm), the same figure as the HBC report. Hemi-anechoic chamber with a 6 dB(A) noise floor, Bruel & Kjaer 2270 G4 analyser, microphone 1 m from the cooler. Protocol revision 1.8.17Measurementcybenetics.com/evaluations/coolers/20Read 14 October 2026The HBC report gives the same 36.6 dB(A) at 100% (1494 and 1536 rpm) as the LBC report.

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.

ADeepCool AK620 G2

Test CPU	Load	CPU power (W)	Fan setting	Noise (dB(A))
AMD Ryzen 9 9950X3D	Cinebench R23, PBO enabled, closed case, noise-normalized test, average CPU power the cooler held	242.5	38.9 dB(A)	38.9
AMD Ryzen 9 9950X	Cinebench R23 10-minute loop, custom PBO with power limits opened and a 95 C thermal limit, AM5 offset mount, average package power	234	Not available	Not available

Source10Reviewtomshardware.com/pc-components/air-cooling/deepcool-ak620-and-ak400-g2-review-quiet-and-powerful-with-woodgrain-or-a-digital-display/2Read 14 October 2026Tom's Hardware, review of 11 August 2026: Ryzen 9 9950X3D on an MSI X870E Carbon WiFi in a closed Tryx Flova F50 with one Noctua NF-A12 G2 intake fan, Cinebench R23, PBO enabled. In the noise-normalized test at 38.9 dBA the AK620 G2 cooled an average of 242.5 W. The temperature limit is 95 C, which every PBO air cooler reached in the maximum test, but the review gives no temperature for this test. All other results are in charts. The noise distance, ambient and paste are not stated. The review gives 42.4 and 41.9 dBA as maximum noise for the AK620 G2 and AK400 G2 'respectively', which is not stored because the pairing is unclear.11Reviewhwlaboratory.com/2026/05/07/deepcool-ak620-g2-review-air-cooler-pertama-bermotifkan-serat-kayu/2Read 14 October 2026HW Laboratory: Ryzen 9 9950X on an ASUS ROG Crosshair X870E Hero, open bench at a room temperature of 25 C, KingpinCooling KPx paste, Cinebench R23 10-minute loop with PPT, TDC and EDC limits opened, Curve Optimizer -20, boost +200 MHz, scalar x10, thermal limit 95 C, AM5 offset mount. Average package power 234 W, maximum 271 W, average clock 4977 MHz. The fan setting and noise are not stated.

BNoctua NH-D15 G2

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	187.9	20 dB(A)	20	95.3	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	190.3	25 dB(A)	25	95.2	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	190.4	30 dB(A)	30	94.2	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	193.1	35 dB(A)	35	93	Not available
AMD Ryzen 9 7900X	Prime95 Small FFTs, full CPU load, PBO enabled	193.1	100%	36.6	93	Not available
Intel Core Ultra 9 285K	Prime95 Small FFTs, full CPU load, Intel default mode	295.9	20 dB(A)	20	89.8	Not available
Intel Core Ultra 9 285K	Prime95 Small FFTs, full CPU load, Intel default mode	297.6	25 dB(A)	25	88.5	Not available
Intel Core Ultra 9 285K	Prime95 Small FFTs, full CPU load, Intel default mode	296.9	30 dB(A)	30	87.4	Not available
Intel Core Ultra 9 285K	Prime95 Small FFTs, full CPU load, Intel default mode	297.1	35 dB(A)	35	85.7	Not available
Intel Core Ultra 9 285K	Prime95 Small FFTs, full CPU load, Intel default mode	297.3	100%	36.6	85	Not available
AMD Ryzen 9 7900X	Prime95, 20 minutes, power level as published	100	40 dB(A)	40	Not available	25.3
AMD Ryzen 9 7900X	Prime95, 20 minutes, power level as published	150	40 dB(A)	40	Not available	44.8
AMD Ryzen 9 7900X	Prime95, 20 minutes, power level as published	200	40 dB(A)	40	Not available	65
AMD Ryzen 9 7900X	Prime95, 20 minutes, power level as published	100	100%	41.6	Not available	23.2
AMD Ryzen 9 7900X	Prime95, 20 minutes, power level as published	150	100%	41.6	Not available	41.6
AMD Ryzen 9 7900X	Prime95, 20 minutes, power level as published	200	100%	41.6	Not available	64.1

Source13Reviewigorslab.de/en/noctua-nh-d15-g2-chromax-black-review-return-of-the-king-in-blackRead 14 October 2026Igor's Lab review of the NH-D15 G2 chromax.black. Ryzen 9 7900X on an ASUS ROG Crosshair X670E Hero, open bench, Prime95 for 20 minutes, same paste for all coolers but the paste is not named, SecuFirm2+ with the AMD backplate. Temperatures are the CPU die average as a delta to the room temperature, which is not stated and not air-conditioned. The power levels 100, 150 and 200 W are as published, and the review does not say how they were set. The cpu_power_w value is that level, not a measured power. Noise was measured at 40 cm with a Voltcraft SL-10 meter in a room of 30.4 dB(A), so the dB(A) values do not compare with the Cybenetics rows at 1 m. The 40 dB(A) rows ran at 92% PWM (front fan about 1385 rpm, middle fan about 1325 rpm). The full-speed rows are at 100% PWM and 41.6 dB(A).16Measurementcybenetics.com/evaluations/coolers/72Read 14 October 2026Cybenetics Cooling Solutions Test Protocol, revision 1.8 (20 minutes per noise level, 10-minute cool-down). Ambient held at 25 C and 30% humidity in a climate chamber, open Cooler Master Test Bench, Prime95 Small FFTs, PBO enabled. The report does not name the paste. The current protocol states Arctic MX-4 for all tests. CPU power is measured at the EPS connectors. The AM5 rows are from the LBC version and the Default mount, and the LGA1851 rows are from the HBC report. The reports do not publish a temperature above ambient.17Measurementcybenetics.com/evaluations/coolers/20Read 14 October 2026Intel rows: Core Ultra 9 285K on an ASRock Z890 Taichi, open DimasTech Bench, Prime95 Small FFTs, Intel default mode, HBC version. Same protocol and climate chamber as the AM5 rows.

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.

Width127Height159Depth144mm(5 × 6.3 × 5.7 in)1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Product Dimensions 127 x 144 x 159 mm (L x W x H), read as width 127, depth 144, height 159 by the DeepCool rule in the dimensions help.

Width150Height168Depth152mm(5.9 × 6.6 × 6 in)2Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026With fans: 168 mm high, 150 mm wide and 152 mm deep.13Reviewigorslab.de/en/noctua-nh-d15-g2-chromax-black-review-return-of-the-king-in-blackRead 14 October 2026Spec table of the chromax.black: height 168 mm, width 150 mm, depth 127 mm without fans and 152 mm with fans.14Reviewhwcooling.net/en/noctua-nh-d15-g2-meeting-all-our-expectations-reviewRead 14 October 2026168 x 150 x 152 mm with fans.15Reviewhwbusters.com/cooling/noctua-nh-d15-g2-review-standard-lbc-hbc-comparisonRead 14 October 2026150 x 168 x 152 mm with fans.

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.

Width125Height153Depth115mm(4.9 × 6 × 4.5 in)1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Heatsink Dimensions 125 x 115 x 153 mm (L x W x H), read as width 125, depth 115, height 153.

Width150Height168Depth127mm(5.9 × 6.6 × 5 in)2Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026Without fans: 168 mm high, 150 mm wide and 127 mm deep.

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.

1,386g(3.1 lb)1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026Net Weight 1386 g.2Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-WH-Wood-Grain-Top-Cover-CPU-Cooler/2025/21863.shtmlRead 14 October 2026Net Weight 1386 g, same as the black page.11Reviewhwlaboratory.com/2026/05/07/deepcool-ak620-g2-review-air-cooler-pertama-bermotifkan-serat-kayu/2Read 14 October 2026The reviewer lists 1380 g including fans, and the spec table copy shows the maker's 1386 g.

1,525g(3.4 lb)2Retailer pagequietpc.com/nh-d15-g2Read 14 October 20261525 g with fans.13Reviewigorslab.de/en/noctua-nh-d15-g2-chromax-black-review-return-of-the-king-in-blackRead 14 October 20261525 g with fans.14Reviewhwcooling.net/en/noctua-nh-d15-g2-meeting-all-our-expectations-reviewRead 14 October 20261525 g.15Reviewhwbusters.com/cooling/noctua-nh-d15-g2-review-standard-lbc-hbc-comparisonRead 14 October 20261525 g with fans.

Heatsink weightiAir coolers only. The heatsink without fans.

Not available

1,180g(2.6 lb)2Retailer pagequietpc.com/nh-d15-g2Read 14 October 20261180 g without fans.13Reviewigorslab.de/en/noctua-nh-d15-g2-chromax-black-review-return-of-the-king-in-blackRead 14 October 20261180 g without fans.

In the box

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In the boxiItems supplied with this exact model, verbatim.

Mounting hardware for AMD and Intel platforms, Alternative top cover, Screwdriver, Tube of thermal paste, 120 mm fans and fan clips, PWM splitter, Matrix-style decal, Installation manual9Reviewtomshardware.com/pc-components/air-cooling/deepcool-ak620-and-ak400-g2-review-quiet-and-powerful-with-woodgrain-or-a-digital-displayRead 14 October 2026Package list for the AK620 G2: mounting hardware for AMD and Intel, alternative top covers, a screwdriver (AK620 G2 only), a tube of thermal paste, 120 mm fans and fan clips and the installation manual. The press release adds a matrix-style decal and HW Laboratory a PWM splitter for the two fans. Wording is shortened from these lists.

2x NF-A14x25r G2 PWM premium fan, 2x NA-RC16 Low-Noise Adaptor (L.N.A.), NA-YC1 4-pin PWM splitter cable, NT-H2 high-grade thermal compound, NA-TPG1 thermal paste guard for AM5, NA-CW1 cleaning wipe, SecuFirm2+ multi-socket mounting system, NM-SD1 Torx T20 screwdriver, 4x NM-ISW1 washers for LGA1700, Noctua metal case badge2Retailer pagequietpc.com/nh-d15-g2Read 14 October 2026Box list of the Noctua spec table, copied for the items shared by all versions. The page text mentions NM-ISW1 washers for LGA1700 but its list leaves them out. Other sources list them for the Standard version, so they are stored only for that row.3Retailer pagequietpc.com/nh-d15-g2-ch-bkRead 14 October 2026Box list of the chromax.black. It has no NM-ISW1 washers.4Retailer pageeshop.enzure.se/noctua-nh-d15-g2/cat-p/c/p1004921255Read 14 October 2026Scope of delivery of the NH-D15 G2 lists 4x NM-ISW1 shim washers (LGA1700) between the mounting system and the screwdriver.15Reviewhwbusters.com/cooling/noctua-nh-d15-g2-review-standard-lbc-hbc-comparisonRead 14 October 2026Scope of delivery of the NH-D15 G2 lists 4x NM-ISW1 washers for LGA1700. The review does not break the list out by version.

Links

Not compared

Product page

www.deepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtml1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 2026

noctua.at/en/nh-d15-g21Maker product pagenoctua.at/en/nh-d15-g2Read 14 October 2026The Noctua site answers agents with a bot check, so the page could not be read. It is stored as the product link only. No value comes from it. Spec values come from the retailer copies of the Noctua spec table and from reviews.

Spec sheet

Not available

Not available

Manual

www.deepcool.com/download/pdf/AK620_G2_Series.pdf4Owner's manualdeepcool.com/download/pdf/AK620_G2_Series.pdfRead 14 October 2026AK620 G2 Series wood grain top cover manual, 28 pages, mostly drawings (read with OCR).

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

Not available

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.

3years1Maker product pagedeepcool.com/products/Cooling/cpuaircoolers/AK620-G2-Wood-Grain-Top-Cover-CPU-Cooler/2025/21864.shtmlRead 14 October 20263 Years Limited Warranty Coverage. The page names no market.5Press releaseglobal.deepcool.com/company/pressroom/newsrelease/2025/22352.shtmlRead 14 October 2026Three-year warranty.9Reviewtomshardware.com/pc-components/air-cooling/deepcool-ak620-and-ak400-g2-review-quiet-and-powerful-with-woodgrain-or-a-digital-displayRead 14 October 2026

6years2Retailer pagequietpc.com/nh-d15-g2Read 14 October 202672 months. The page names no market.

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