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#3 in Best CPU Coolers

Thermalright Peerless Assassin 120 SE CPU Cooler, 6 Heat Pipes AGHP Technology, Dual 120mm PWM Fans, 1550RPM Speed, for AMD:AM4…

Thermalright

Best for

Best Thermalright budget air

Amazon rating

★★★★★4.7(3,074)

Amazon aggregate, one input among many in the Verdict Score

Verdict scoreGreat
89/ 100

Based on 1 trusted source

Current price

$34.90

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Updated May 18, 2026 · 1 min read

Thermalright Peerless Assassin 120 SE CPU Cooler, 6 Heat Pipes AGHP Technology, Dual 120mm PWM Fans, 1550RPM Speed, for AMD:AM4…

Sources behind this verdict

10 reviewers weighted by source trust

Methodology →

The consensus

What reviewers found

Synthesized across the trust-weighted source mix below.

Across the reviewers we read, the Thermalright Peerless Assassin 120 SE is the most agreed-upon budget recommendation in cooling. tomshardware.com's verified review called it "shockingly cool and quiet, less than $40," and r/hardware and r/buildapc threads in our data repeatedly cite it as the price-to-performance benchmark every other budget air cooler is measured against. overclock.net testing corroborated the value story.

What reviewers liked

  • tomshardware.com verified review highlights sub-$40 price with near-flagship thermal performance
  • r/hardware and r/buildapc consistently cite it as the budget benchmark
  • Amazon 4.7 across 3,074 reviews corroborates expert verdict
  • Six heatpipes and dual 120mm fans in a footprint that fits most cases

Where it falls short

  • Bundled fans are good but not class-leading
  • Mounting hardware feels less refined than Noctua or be quiet! per community discussion
  • Thinner long-term brand support and warranty experience than premium competitors
  • SE variant lacks heatpipe end-caps versus the standard model, a finish detail community threads call out

Across the reviews

Synthesis · not our verdict

Across the reviewers we read, the Thermalright Peerless Assassin 120 SE is the most agreed-upon budget recommendation in cooling. tomshardware.com's verified review called it "shockingly cool and quiet, less than $40," and r/hardware and r/buildapc threads in our data repeatedly cite it as the price-to-performance benchmark every other budget air cooler is measured against. overclock.net testing corroborated the value story.

The honest caveats from the reviewers we read: the included fans are good but not the class-leading NF-A12x25 caliber, the mounting hardware is functional rather than refined, and Thermalright's long-term support is thinner than Noctua's or be quiet!'s. r/buildapc commenters also note the SE variant lacks heatpipe-tip caps and is slightly less premium than the standard Peerless Assassin 120. Even with those caveats, at roughly a third the price of an NH-D15 it delivers a startling amount of the performance, which is why verified-purchase reviewers on Amazon (4.7 across 3,074 ratings) and specialist communities both keep recommending it.

Key specs

Source: Amazon listing
Brand Overview
Thermalright is a Taiwan brand with more than 20 years of development. It has a certain popularity in the domestic and foreign markets and has a pivotal influence in the player market. We have been focusing on the research and development of computer accessories. R & D product lines include: CPU air-cooled radiator, case fan, thermal silicone pad, thermal silicone grease, CPU fan controller, anti falling off mounting bracket, support mounting bracket and other commodities
Product specification
Thermalright PA120 SE; CPU Cooler dimensions: 125(L)x135(W)x155(H)mm (4.92x5.31x6.1 inch); heat sink material: aluminum, CPU cooler is equipped with metal fasteners of Intel & AMD platform to achieve better installation, double tower cooling is stronger((Note:Please check your case and motherboard for compatibility with this size cooler.)
【2 PWM Fans】TL-C12C; Standard size PWM fan
120x120x25mm (4.72x4.72x0.98 inches); 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
【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 pwm fans, aim to extreme CPU cooling performance
【Compatibility】The CPU cooler Socket supports
Intel:115X/1200/1700/17XX AMD:AM4;AM5; For different CPU socket platforms, corresponding mounting plate or fastener parts are provided(Note: Toinstall the AMD platform, you need to use the original motherboard's built-in backplanefor installation, which is not included with this product)

What customers say

2 verified voices
My personal opinion is that the Hyper 212 was never a "good" cooler. It got popular because back in the Sandy Bridge days it was nice and cheap ...
Supportingvia r/hardware
At full load stress tests, it doesn't exceed 78C. You find multiple posts of 13600k reaching 100C on high-end cooling setups. So, I can attest ...
Supportingvia r/hardware

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Video review

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$41 Thermalright Peerless Assassin CPU Cooler Review ...” · YouTube

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