Thermalright Peerless Assassin 120 Mini White CPU Cooler - Compact

In this review the Thermalright Peerless Assassin 120 Mini White is evaluated as a compact, high-performance air cooler aimed at small to mid-size builds that need strong thermal control without a large tower. The single biggest reason to consider it is its combination of a dual-tower layout and six 6mm heatpipes using AGHP 4th generation technology, which together deliver efficient heat transfer in a smaller footprint while remaining quiet under load. It is a practical choice for users who want near-full-size cooling power in a mini-friendly package.

Key Features

• AGHP 4th Gen Heatpipes: Six 6mm heatpipes use upgraded AGHP technology to reduce gravity-related performance loss and keep heat moving effectively in both vertical and horizontal orientations.
• Dual Tower Design: Two stacks of 48 all-aluminum fins expand the dissipation surface area, improving sustained cooling compared with single-stack designs in similar sizes.
• Pure Copper Base: A copper base ensures direct, efficient transfer of CPU heat into the six heatpipes for rapid spread to the dual towers.
• 120mm PWM Fan: The included TL-D12W 120x25mm PWM fan runs up to 1500 RPM with 66.87 CFM peak airflow and S-FDB bearing for long life and reduced vibration.
• Wide Socket Support: Mounting hardware supports Intel LGA1150/1151/1155/1156/1200/1700/1851 and AMD AM4/AM5 platforms, with appropriate plates and fasteners included for each.
• Low Noise Focus: Shock-absorbing silicone feet and an anti-touch blade design help reduce noise and vibration for quieter operation.

Who It's For

The Peerless Assassin 120 Mini White is best suited for PC builders who need strong air cooling in compact or mid-tower cases where a full-size cooler would interfere with RAM or case clearance. Gamers and creators with mainstream to moderately high TDP CPUs will benefit from the combination of six heatpipes and a performance 120mm fan.

Users who need absolute top-end cooling for extreme overclocking or those seeking an ultra-compact low-profile cooler for very small form factor cases should look elsewhere; this cooler is a compact performance compromise rather than an ultra-low profile or heavy-duty enthusiast tower.

Pros & Cons

Pros

• Strong cooling capacity for its size thanks to six heatpipes and dual towers.
• Quiet, durable 120mm PWM fan with S-FDB bearing and vibration damping.
• Broad socket compatibility makes it easy to use across modern Intel and AMD systems.
• Good value for the level of cooling and build quality provided.

Cons

• Not as small as dedicated low-profile coolers, so it may still interfere in very tight SFF builds.
• Dual-tower height and layout may limit clearance with tall RAM modules in some motherboards.

Specifications

Our Verdict

The Thermalright Peerless Assassin 120 Mini White is a smart pick for builders who want near-full-size cooling performance in a more compact package. With six AGHP heatpipes, a dual-tower fin array and a quiet PWM 120mm fan, it balances cooling power, noise control and broad compatibility at a sensible price. It is particularly good value for mainstream gamers and content creators who need effective thermals without a large cooler footprint.

Frequently Asked Questions

Will this fit on AM4 and AM5 sockets?
Yes. The cooler includes mounting plates and fasteners for both AMD AM4 and AM5 platforms.

How loud is the fan under load?
The TL-D12W fan is rated at 25.6 dB(A) with shock-absorbing feet and S-FDB bearing to keep noise and vibration low in typical use.

Does the dual-tower design affect RAM clearance?
The dual-tower increases cooling area but may reduce clearance for very tall RAM modules on some motherboards, so check tower height against your case and RAM before purchase.