CPU coolers / Compare

Scythe Mugen 6 vs Thermalright Peerless Assassin 120 SE

A

Product A: Scythe

Mugen 6

26 of 54 known

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B

Product B: Thermalright

Peerless Assassin 120 SE

25 of 54 known

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Every value links to where we found it.

Only differences

AScythe Mugen 6

BThermalright Peerless Assassin 120 SE

General

5 of 12 differ

Series

Mugen1Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026Product name MUGEN6, the sixth generation of the Mugen line. The Black Edition and the White ARGB edition are separate two-fan models.

Peerless Assassin1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Category: Peerless Assassin.

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

SCMG-60001Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026Model SCMG-6000. The Black Edition is SCMG-6000DBE and the White ARGB edition SCMG-6000DWR, both separate models with two fans.

PA120 SE 17003Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 2026MPN: PA120 SE 1700. This is the retailer's manufacturer part number, not printed on Thermalright's page.

GTIN / EAN

45712250589621Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026JAN 4571225058962. Several retailers list the same EAN. BuildCores shows other UPC codes for the same part number, which are not stored because no source pairs them with this exact model.

08142560037593Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 2026EAN 0814256003759. Paradigit lists the same number as 814256003759 under Product number manufacturer.

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

1 February 20245Press articlekitguru.net/components/cpu/joao-silva/scythe-launches-new-generation-of-mugen-cpu-coolersRead 15 October 2026KitGuru article of 2024-02-01 announcing the Mugen 6 and the Mugen 6 Dual Fan Black Edition. It is the earliest article found.

Not available

Status

Available7Reviewfunkykit.com/reviews/cooling/scythe-mugen-6-and-mugen-6-dbe-high-performance-cpu-coolers-reviewRead 15 October 2026The review of 2024-06-20 shows USD 46.99 at the maker's US store, in stock. See the TalosPC source for the access date.8Retailer pagetalospc.com/product/scythe-mugen-6-cpu-coolerRead 15 October 2026Price tracker page with an Amazon price of $33.41, updated 2026-10-14. The same $33.41 Amazon price is in Tom's Hardware's review widget. The Scythe Japan site files this model under discontinued products, so the status is for the US market.

Available3Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 202650 in stock on the access date at 33.11 GBP excluding VAT. Thermalright's page is live.

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.

$46.996Reviewtomshardware.com/pc-components/air-cooling/scythe-mugen-6-and-mugen-6-black-edition-reviewRead 15 October 2026Spec table, which the article says is straight from Scythe: MSRP $46.99 for the Mugen 6 and $54.99 for the Black Edition. The review is dated 2024-04-02. Tax is not stated.

$364Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026Spec table, supplied by Thermalright: MSRP $36 USD. The review is dated September 2022, so this is the US MSRP at that time and may not be the launch price. Tax 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.

Not available

Not available

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

Not available

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ColoursiThe maker's own colour names

Silver1Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026Heatsink is silver (single fan model).

Not available

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 pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026

Air1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026

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

Single tower1Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026Side-flow single tower heatsink with one fan.

Dual tower1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Listed under Dual Towers in the Peerless Assassin series.

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

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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 pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026The page says a thick copper base plate takes up CPU heat and that the heat pipes are nickel plated. It does not say the base plate is plated. Tom's Hardware and Funky Kit both state a nickel-plated copper base, so nickel_plated_copper is stored.6Reviewtomshardware.com/pc-components/air-cooling/scythe-mugen-6-and-mugen-6-black-edition-reviewRead 15 October 2026Spec table: Nickel Plated Copper Base. Heatsink material aluminum.7Reviewfunkykit.com/reviews/cooling/scythe-mugen-6-and-mugen-6-dbe-high-performance-cpu-coolers-reviewRead 15 October 2026Page 4: the base is made of nickel-plated copper, and the heat pipes are nickel plated.

Nickel-plated copper1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Copper Base: C1100 Pure copper nickel plated.

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 pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 20261 g of Thermal Elixir 3 grease and a spatula come in the box.3Owner's manualscythe.co.jp/wp-content/uploads/2024/01/manual_scmg-6000.pdfRead 15 October 2026Item 11 is Thermal Grease and the steps say to apply it to the CPU.

Included2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026Parts list item J: Thermal Grease x1. The steps say to apply thermal grease on the CPU. Tom's Hardware names a medium-sized tube of thermal paste.4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026A medium-sized tube of thermal paste is in the package.

Compatibility

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

AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA1150, LGA2066, LGA2011-3, LGA20111Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026Intel 1150, 1151, 1155, 1156, 1200, 1700, 2011, 2011(V3), 2066 and AMD AM4 and AM5. The Japan page was last edited in February 2025 and does not list LGA1851, which the maker's US page adds. 2011(V3) is written LGA2011-3. The 115x family is written out as the four sockets the page names.2Maker product pagescytheus.com/mugen6Read 15 October 2026Intel: LGA 1851 / 1700 / 115x / 1200 / 2011 / 2066. AMD: AM5 / AM4. The text says the H.P.M.S. V mount covers Intel LGA 1851 and AMD AM5. No extra kit is named.3Owner's manualscythe.co.jp/wp-content/uploads/2024/01/manual_scmg-6000.pdfRead 15 October 2026Installation pages: Intel LGA 2066 Square ILM / 2011 (V3) Square ILM, Intel LGA 1700 / 1200 / 1156 / 1155 / 1151 / 1150 and AMD AM4 / AM5, with the parts from the box. The manual dates from 2023 and has no LGA1851 page.

AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA11501Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Intel 115X/1200/1700/1851 and AMD AM4/AM5. 115X is written as LGA1150, LGA1151, LGA1155 and LGA1156. The older installation guide covers AM4, 115X/1200 and 1700 only. The page names AM5 and LGA1851.

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

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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

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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 pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026Six 6 mm heat pipes, nickel plated.2Maker product pagescytheus.com/mugen6Read 15 October 2026Heatpipe: 6 mm diameter x 6.6Reviewtomshardware.com/pc-components/air-cooling/scythe-mugen-6-and-mugen-6-black-edition-reviewRead 15 October 2026Six 6 mm copper heat pipes.

61Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Heat pipes: 6mm heatpipe x 6 units.

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

6mm1Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026

6mm1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026

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

No1Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026A thick copper base plate absorbs the CPU heat, so the heat pipes sit in a base plate and do not touch the CPU. Stored as false.

Not available

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

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Radiator material

Not available

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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.

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

Not available

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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

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

Not available

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Fans

2 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.

AScythe Mugen 6

Model	Size (mm)	Fans	Min speed (rpm)	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
Wonder Tornado 120 PWM	120	1	350	2,000	60.29	2.45	26.88	Fluid dynamic (FDB)	4-pin PWM

Source1Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026Fan 120 x 120 x 26 mm, 4-pin PWM, 350 (+/-200) to 2000 rpm (+/-10%), 7.68 to 60.29 CFM, 0.05 to 2.45 mmH2O, 3.0 to 26.88 dBA. The ranges are for the fan across its speed range, so the top values are stored. The page lists one fan. The bearing is not on the maker pages, see the Tom's Hardware source.2Maker product pagescytheus.com/mugen6Read 15 October 2026WONDER TORNADO 120 PWM, 2000 RPM, 120 x 120 x 26 mm with rubber, 350 +/- 200 to 2000 +/- 10% RPM, 7.68 to 60.29 CFM, 0.05 to 2.45 mmH2O, 3.00 to 26.88 dBA, 12 V, 0.15 A, 4 pin PWM.3Owner's manualscythe.co.jp/wp-content/uploads/2024/01/manual_scmg-6000.pdfRead 15 October 2026WONDER TORNADO 120 PWM fan: 350 +/- 200 to 2000 +/- 10% RPM, 3.00 to 26.88 dBA, 7.68 to 60.29 CFM. The fan speed limits depend on the PWM signal of the motherboard.6Reviewtomshardware.com/pc-components/air-cooling/scythe-mugen-6-and-mugen-6-black-edition-reviewRead 15 October 2026Fan table: Wonder Tornado 120mm, up to 2000 RPM +/-10%, up to 60.29 CFM, up to 2.45 mmH2O, Sealed Precision FDB bearing, lighting none, over 120,000 hours. Its 25 mm fan thickness differs from the maker's 26 mm, so the maker value is used for size. The bearing is stored as fluid dynamic.

BThermalright Peerless Assassin 120 SE

Model	Size (mm)	Fans	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
TL-C12C	120	2	1,550	66.17	1.53	25.6	Fluid dynamic (FDB)	4-pin PWM

Source1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026TL-C12C fan spec: 120 x 120 x 25 mm, 120 g each, rated speed 1550 RPM +/-10% (MAX), noise 25.6 dBA, air flow 66.17 CFM (MAX), air pressure 1.53 mm H2O (MAX), 0.20 A, 4 pin PWM connector, S-FDB bearing. S-FDB is stored as fluid dynamic. The page gives no minimum speed. Two fans come in the box per the installation guide parts list.2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026Parts list item B: Fan x2, and item C: Fan Y-cable x1 that joins both fans to one PWM header.4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026The package includes 2x TL-C12C 120mm fans. The fan table repeats Thermalright's figures: 1550 RPM +/-10%, 66.17 CFM, 1.53 mm H2O, 25.6 dB(A).

FansiNumber of included heatsink or radiator fans.

1=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.

No6Reviewtomshardware.com/pc-components/air-cooling/scythe-mugen-6-and-mugen-6-black-edition-reviewRead 15 October 2026Fan table: Lighting None.7Reviewfunkykit.com/reviews/cooling/scythe-mugen-6-and-mugen-6-dbe-high-performance-cpu-coolers-reviewRead 15 October 2026Page 4: there is no RGB illumination or display panel.

No4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026The fan spec table lists Lighting: None, and the text says there is no RGB or lighting at all.

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.

None7Reviewfunkykit.com/reviews/cooling/scythe-mugen-6-and-mugen-6-dbe-high-performance-cpu-coolers-reviewRead 15 October 2026Page 4: no display panel. The maker pages list only a heatsink and a fan.

None4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026The review describes a dual-tower heatsink with two plain fans and no screen.

Screen sizeiDiagonal of the built-in screen.

Not available

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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.

Not available

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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.

No7Reviewfunkykit.com/reviews/cooling/scythe-mugen-6-and-mugen-6-dbe-high-performance-cpu-coolers-reviewRead 15 October 2026Page 4: with no RGB, only a PWM connector delivers power and controls the fan. No USB connection is mentioned.

No2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026The Fan Wiring panel shows only the 4-pin PWM CPU_FAN header, with a Y-cable for two fans. No USB connection is shown.

Measured

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

Not available

Not available

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

Not available

Not available

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

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

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

Not available

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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.

AScythe Mugen 6

Test CPU	Load	CPU power (W)	Fan setting	Noise (dB(A))
Intel Core i7-13700K	No power limit, throttling at TJ Max, average package power the cooler held	222	100%	39.6
Intel Core i7-13700K	No power limit, noise normalized, average package power the cooler held	220	38.2 dB(A)	38.2

Source6Reviewtomshardware.com/pc-components/air-cooling/scythe-mugen-6-and-mugen-6-black-edition-reviewRead 15 October 2026Albert Thomas, review of 2024-04-02. Intel Core i7-13700K on an MSI Z690 A Pro DDR4 in a be quiet! Silent Base 802 with system fans on setting 1, 23 C ambient room temperature, Thermalright LGA1700 contact frame fitted, 10-minute runs. Noise is read with a sound meter, distance not stated. Row 1: no power limit, the CPU hits TJ Max and the reviewer records the package power the cooler held, 222 W on average, with 39.6 dBA at full fan speed. Row 2: noise normalized to 38.2 dBA, 220 W. A 175 W Cinebench chart also exists, but its numbers are only in the chart image and the text says only that the single fan Mugen 6 matched the Fuma 3, so no row is stored.

BThermalright Peerless Assassin 120 SE

Test CPU	Load	CPU power (W)	Fan setting	Above ambient (°C)
Intel Core i9-12900K	Cinebench with a 200 W CPU power limit, 10 minute run, be quiet! Silent Base 802 case	200	default motherboard fan curve	61
Intel Core i9-12900K	OCCT small data set with a 200 W CPU power limit, 10 minute run, be quiet! Silent Base 802 case	200	default motherboard fan curve	64

Source4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026Albert Thomas, review last updated 27 September 2022. Intel Core i9-12900K on an MSI Z690 A-Pro DDR4 in a be quiet! Silent Base 802 case. Each stress test ran 10 minutes with the fans on the motherboard's default fan curve. Row 1: Cinebench with a 200 W CPU power limit, the CPU averaged 61 degrees C over ambient. Row 2: OCCT small data set at 200 W, 64 degrees C over ambient. The ambient temperature, the paste and whether the case was closed are not stated. Noise and the other rows (95 W, 140 W, 50 percent fan speed) are only in chart images, so they are not stored.

Dimensions and weight

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

Width132Height154Depth106mm(5.2 × 6.1 × 4.2 in)1Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026132 (W) x 154 (H) x 106 (D) mm with the fan and its clip protrusions. The maker corrects the box print (132 x 80 x 154) to 132 x 106 x 154 on this page.2Maker product pagescytheus.com/mugen6Read 15 October 2026W132 x D106 x H154 mm with the fan.

Width125Height155Depth135mm(4.9 × 6.1 × 5.3 in)3Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 2026Technical details: Dimensions with fan 125 x 155 x 135 mm (W x H x D) and without fan 125 x 155 x 110 mm. The without-fan figure matches Thermalright's heatsink size, and the 25 mm front fan explains the extra 25 mm of depth. Paradigit prints 138 mm of depth with a width of 120 mm, which does not match Thermalright's 125 mm, so it is not used.

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

Width125Height155Depth110mm(4.9 × 6.1 × 4.3 in)1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Heatsink Specifications: L125 mm x W110 mm x H155 mm. L runs across the fins and W along the airflow of this dual-tower cooler, so width 125, depth 110 and height 155.

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.

1,013g(2.2 lb)1Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 20261,013 g including the fan.2Maker product pagescytheus.com/mugen6Read 15 October 20261013 g with the fan.

970g(2.1 lb)3Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 2026Technical details: Weight with fan 970 g and without fan 730 g (the page prints Weight with fan twice). 970 g equals the heatsink 730 g plus two 120 g fans. Tom's Hardware lists a net weight of 850 g, which fits one fan and is not used.

Heatsink weightiAir coolers only. The heatsink without fans.

Not available

730g(1.6 lb)1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Heatsink Specifications: Weight 730g.

In the box

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In the boxiItems supplied with this exact model, verbatim.

CPU Cooler, WONDER TORNADO 120 PWM Fan, Stud Nuts, Back Plate Kit, Plastic Spacers, Mounting Plates (Intel), Mounting Plates (Intel LGA1700), Mounting Plates (AMD), Screws (AMD), Bolt Nuts, Thermal Grease, Spatula, Fan Clips, Screwdriver1Maker product pagescythe.co.jp/category/product/cpu-cooler/air-cooling/high-end/scmg-6000Read 15 October 2026The Japanese page lists a retention kit, two sets of fan clips, grease, spatula, screwdriver and Japanese manual. The English item names come from the manual's item list. KitGuru and the Japanese page add a spatula for the grease.3Owner's manualscythe.co.jp/wp-content/uploads/2024/01/manual_scmg-6000.pdfRead 15 October 2026Item list on page 1: 1 CPU Cooler, 2 fan, 3 Stud Nuts, 4 Back Plate Kit, 5 Plastic Spacers, 6 Mounting Plates (Intel), 7 Mounting Plates (Intel LGA1700), 8 Mounting Plates (AMD), 9 Screws (AMD), 10 Bolt Nuts, 11 Thermal Grease, 12 Fan Clips, 13 Screwdriver. The manual prints no quantities. Which parts each socket uses is shown in a table.

Heatsink x1, Fan x2, Fan Y-cable x1, AMD bracket x2, Intel bracket x2, Intel 115X/1200 back plate x1, Fan clip x4, 115X/1200 standoff x4, Intel screw x4, Thermal grease x1, AM4 standoff x4, AM4 screw x4, LGA17XX back plate x1, 17XX standoff x4, Installation guide2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026Parts List items A to N as printed, quantities kept. The guide's item F is the Intel 115X/1200 back plate and M the LGA17XX back plate. The Installation guide line comes from the Tom's Hardware package list, wording shortened.4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026Package list: dual-tower heatsink, 2x TL-C12C fans, mounts for modern Intel and AMD platforms, a medium-sized tube of thermal paste, a fan splitter and an installation guide.

Links

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Product page

www.scytheus.com/mugen62Maker product pagescytheus.com/mugen6Read 15 October 2026Scythe's US product page for the MUGEN 6, model SCMG-6000.

www.thermalright.com/product/peerless-assassin-120-se1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026

Spec sheet

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Manual

www.scythe.co.jp/wp-content/uploads/2024/01/manual_scmg-6000.pdf3Owner's manualscythe.co.jp/wp-content/uploads/2024/01/manual_scmg-6000.pdfRead 15 October 2026

download.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdf2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026One-page folded installation guide (English and Chinese), PDF dated November 2021.

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

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Warranty

None of 1 known

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.

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