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Thermalright Peerless Assassin 120 CPU Air Cooler, 6 Heatpipes,Dual 120mm PWM Fans, 1550rpm±10%,High Performance Radiator, for AM4/AM5/Intel lga1700/1150/1151/1200/2011/1851
Thermalright

Thermalright Peerless Assassin 120 CPU Air Cooler

Bottom line: The Thermalright Peerless Assassin 120 CPU Air Cooler ($34.11 on Amazon as of 2026-10-21 04:13 UTC): Six 6mm sintered copper heatpipes with pure copper base for strong heat transfer; main trade-off: tall 157mm dual-tower height may not clear compact or SFF cases.

$34.11

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Buy on Amazon — $34.11 Compare to similar processors

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Six 6mm sintered copper heatpipes with pure copper base for strong heat transfer
  • ✓ Dual TL-C12 120mm PWM fans push up to 66.17 CFM at 1550rpm
  • ✓ Quiet under load, rated at 25.6 dB(A) or lower
  • ✓ Wide socket support across AMD AM4/AM5 and Intel LGA1700/1200/1151/2011

Cons

  • ✗ Tall 157mm dual-tower height may not clear compact or SFF cases
  • ✗ No RGB lighting on the fans or heatsink
  • ✗ Socket lists differ between title and specs — confirm your exact socket
  • ✗ Twin 25mm-thick fans can crowd very tall RAM despite the clearance design

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SpecPicks Verdict

SpecPicks scored Thermalright Peerless Assassin 120 CPU Air Cooler using a rating × review-volume × price-fit model applied to published specs and reviews across the processors category. Thermalright's processors lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for processors of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 【Better cooling】6 pure copper sintered heat pipes & PWM fan & Pure copper base&Full electroplating reflow welding process. When cooler cpu works, match with ultra-silent airflow fans, aim to extreme CPU cooling performance
  • 【AGHP technique】6×6mm heat pipes apply AGHP technique, Solve the Inverse gravity effect caused by vertical / horizontal orientation. 6 pure copper sintered heat pipes & PWM fan & Pure copper base&Full electroplating reflow welding process, When CPU cooler works, match with ultra-silent airflow fans, aim to extreme CPU cooling performance.
  • 【Specifications】 PC cooler dimensions: 125(L)*135(W)*157(H)mm, heat sink material: aluminum, CPU cooler is equipped with metal fasteners of Intel & AMD platform to achieve better installation. Double tower cooling is stronger
  • 【Double PWM Fans】TL-C12 fan×2; Standard size PWM fan:120x120x25mm; CPU fan speed (RPM):1550rpm±10%; Power port: 4pin; Voltage:12V; Air flow:66.17CFM(MAX); Noise Level≤25.6dB(A), leave room for memory-chip(RAM), so that installation of ice cooler cpu is unrestricted.
  • 【Compatibility】The cpu cooling Socket supports: Intel:LGA1150/1151/1155/1156/1200/2066/2011/1851; AMD:AM4/AM5; for different CPU socket platforms, corresponding mounting plate or fastener parts are provided.

Full Specifications

BrandThermalright
ModelLM-PA 120
Voltage12 Volts (DC)
Wattage4.8 watts
MaterialAluminum
Dimensions120x120x25mm
Unit Count1.0 Count
Noise Level25.6 Decibels
Part NumberPA 120
CompatibilityPC
Material TypeAluminum
Cooling MethodAir
Number of Items1
Air Flow Capacity66.17 Cubic Feet Per Minute
Compatible DevicesDesktop
Included Componentscpu cooler
Power Connector Type4-Pin
Warranty Description3 Years
Maximum Rotational Speed1550 RPM
Item Dimensions L x W x H4.92"L x 5.31"W x 6.18"H
Full listing titleThermalright Peerless Assassin 120 CPU Air Cooler, 6 Heatpipes,Dual 120mm PWM Fans, 1550rpm±10%,High Performance Radiator, for AM4/AM5/Intel lga1700/1150/1151/1200/2011/1851

Ready to buy?

Thermalright Peerless Assassin 120 CPU Air Cooler, 6 Heatpipes,Dual 120mm PWM Fans, 1550rpm±10%,High Performance Radiator, for AM4/AM5/Intel lga1700/1150/1151/1200/2011/1851 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $34.11

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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Thermalright Peerless Assassin 120 CPU Air Cooler, 6 Heatpipes,Dual 120mm PWM Fans, 1550rpm±10%,High Performance Radiator, for AM4/AM5/Intel lga1700/1150/1151/1200/2011/1851
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