Thermalright Peerless Assassin 120 CPU Air Cooler - Dual Fans, 6 Heat

In this review of the Thermalright Peerless Assassin 120 the bottom line is simple: this cooler is aimed at builders who want strong air cooling performance and broad socket compatibility without paying premium prices. It stands out for its dual-tower aluminum heatsink, six heat pipes using AGHP technology to reduce orientation sensitivity, and a pair of TL-C12B PWM fans that balance airflow and noise. For anyone upgrading a midrange system or building a compact workstation, the Peerless Assassin 120 delivers substantive cooling gains and solid build quality.

Key Features

• Dual-tower aluminum heatsink: The twin towers increase the effective heat dissipation area so the cooler moves more heat away from the CPU under load.
• Six heat pipes with AGHP technology: AGHP design mitigates inverse-gravity performance loss so cooling remains consistent regardless of cooler orientation.
• Dual TL-C12B PWM fans: Two 120mm PWM fans provide up to 66.17 CFM for stronger airflow while using S-FDB bearings to keep motor noise and wear low.
• Electroplating and anodized finish: Reflow welding and nanoscale black spray plus anodized aluminum covers protect fins and give a clean, durable appearance.
• Wide socket compatibility: The package includes metal fasteners and mounting plates for current Intel and AMD sockets so installation fits many builds.
• Offset asymmetric layout: The cooler is designed to allow installation over the first PCIe slot in many motherboards to avoid GPU interference.

Who It's For

The Peerless Assassin 120 is a good fit for PC builders who want an economical but capable air cooler for CPU-intensive tasks such as gaming, content creation, or extended rendering sessions. It is especially useful for systems where orientation or case layout could otherwise degrade heat pipe performance thanks to the AGHP design.

It is less suitable for ultra-compact mini-ITX builds where clearance is extremely tight or for users who need completely silent passive cooling. Enthusiasts seeking extreme overclocking headroom might prefer larger or tower coolers designed specifically for high TDP overclocking.

Pros & Cons

Pros

• Strong cooling performance from a double-tower design and six heat pipes, noticeable under sustained load.
• Good value: solid build quality and anodized covers typically found on higher-priced coolers.
• Wide socket support and included metal fasteners simplify installation across Intel and AMD platforms.
• Fans strike a reasonable balance of airflow and noise for most desktop use.

Cons

• Noise impressions vary among users; some report it as louder than expected under high fan speed.
• At 157 mm height and a 125 x 135 mm footprint, clearance can be tight in smaller cases or above large memory modules.

Specifications

Model	PA120 Black
Dimensions	125 x 135 x 157 mm
Heat sink material	Aluminum with anodized covers
Heat pipes	6 pure copper sintered heat pipes with AGHP
Fans	Dual TL-C12B 120 x 120 x 25 mm PWM, 1500 RPM +/-10%
Airflow	66.17 CFM (max)
Noise	25.6 dB(A)

Our Verdict

The Thermalright Peerless Assassin 120 is a practical, value-oriented CPU cooler that blends a double-tower heatsink and six AGHP heat pipes with dual PWM fans to deliver dependable cooling for midrange and workstation builds. It is a smart buy for users who want improved temperatures and broad socket support without an expensive premium, though noise and case clearance should be checked against your system before purchase.

Frequently Asked Questions

Does it fit modern Intel and AMD sockets?
Yes, the cooler includes metal fasteners and mounting plates for a wide range of Intel sockets and AMD AM4/AM5 compatibility as noted in the product packaging.

Is the cooler affected by orientation inside the case?
No, the AGHP heat pipe design reduces performance loss when mounted vertically or horizontally, keeping heat transfer effective in different layouts.

How loud are the fans under load?
Fans are rated at 25.6 dB(A) and users report mixed noise impressions; most find them acceptably quiet, though some report noticeable sound at higher RPMs.