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Thermalright Assassin X 120R Digital ARGB Black vs Thermalright Peerless Assassin 120 Mini Black CPU

Updated August 2026 — Thermalright Assassin X 120R Digital ARGB Black leads on aesthetics and fan efficiency.

The Thermalright Assassin X 120R offers superior cooling performance and features at a lower price, making it the better choice for most users. However, the Peerless Assassin 120 Mini excels in quieter operation and compact design.

Why Thermalright Assassin X 120R Digital ARGB Black is better

Cooling Performance

Higher fan speed and airflow

Price

More affordable at $24.90

Aesthetics

Includes a digital screen

Why Thermalright Peerless Assassin 120 Mini Black CPU is better

Noise Level

Quieter operation at ≤ 25.6 dB

Compact Size

Smaller dimensions for tight spaces

Heat Pipe Technology

Advanced AGHP technology for better heat dissipation

Overall score

Thermalright Assassin X 120R Digital ARGB Black
85
Thermalright Peerless Assassin 120 Mini Black CPU
78

Specifications

SpecThermalright Assassin X 120R Digital ARGB BlackThermalright Peerless Assassin 120 Mini Black CPU
Fan Speed2000 RPM1500 RPM
Noise Level≤ 29.8 dB≤ 25.6 dB
Heat Pipes46
ARGB LightingYesNo
CompatibilityIntel/AMDIntel/AMD

Dimension comparison

Thermalright Assassin X 120R Digital ARGB BlackThermalright Peerless Assassin 120 Mini Black CPU

Overview of the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler

The Thermalright Assassin X 120R Digital ARGB Black CPU Cooler is priced at $24.90 and boasts several innovative features, including a digital screen top cover. This cooler is designed for efficient heat dissipation, integrating a 2000 RPM fan and a structure comprising four heat pipes. The product aims to provide a comprehensive cooling solution while also displaying real-time CPU and GPU metrics thanks to its digital screen.

This cooler supports a wide range of CPU sockets, including Intel's LGA 1851/1700/1150/1151/1155/1156/1200 platforms and AMD's AM4/AM5 sockets. The ARGB lighting can be synchronized with the motherboard for an enhanced aesthetic appeal. Its overall height of 151mm allows compatibility with most cases, making it a versatile option for various builds.

Overview of the Thermalright Peerless Assassin 120 Mini Black CPU Cooler

The Thermalright Peerless Assassin 120 Mini Black CPU Cooler is a more premium option, priced at $34.39, and features advanced AGHP technology. This model incorporates six heat pipes designed to optimize heat dissipation, particularly in vertical and horizontal orientations. It operates with a 120mm PWM fan that runs at 1500 RPM, providing a balance between performance and noise, with a maximum airflow of 66.87 CFM.

Compatible with both Intel and AMD sockets, including LGA 1851/1700/1150/1151/1200 for Intel and AM4/AM5 for AMD, it aims to cater to a broad range of users. The cooler's compact dimensions of 125mm x 110mm x 135mm make it suitable for smaller cases while still delivering effective cooling.

Cooling Performance

In terms of cooling performance, the Thermalright Assassin X 120R operates at a fan speed of 2000 RPM, enabling it to achieve a maximum airflow of 70.84 CFM. This higher speed allows it to dissipate heat efficiently, making it suitable for high-performance CPUs. The four heat pipes enhance its heat transfer capabilities, ensuring lower temperatures during intensive tasks.

On the other hand, the Thermalright Peerless Assassin 120 Mini, with its six heat pipes and fan speed of 1500 RPM, provides adequate cooling but at a slightly reduced airflow of 66.87 CFM. While both coolers are effective, the Assassin X 120R is positioned to offer more aggressive cooling, which can be beneficial for overclocking scenarios.

Noise Levels

The Thermalright Assassin X 120R maintains an operating noise level of ≤ 29.8 dB, which is quite reasonable for a cooler operating at 2000 RPM. This level of noise ensures that users can enjoy a quieter computing experience, even under load.

Conversely, the Peerless Assassin 120 Mini has a lower noise level of ≤ 25.6 dB. This quieter operation, combined with its effective cooling capabilities, makes it an attractive option for users who prioritize a silent build. However, the difference in noise levels reflects the performance trade-offs due to their respective design and operational speeds.

Build Quality and Aesthetics

The Thermalright Assassin X 120R features a sleek design with a digital screen that not only serves a functional purpose but also enhances the overall aesthetics of a gaming rig. The combination of its aluminum fins and PWM fan contributes to its robust build quality. The ARGB lighting adds a modern touch, appealing to users who value visual customization.

In comparison, the Peerless Assassin 120 Mini has a fully blackened appearance with an antioxidant coating. Its CNC precision micro-engraved copper base adds a level of sophistication to its design. While it lacks a digital display, the overall aesthetic remains attractive, particularly for users who prefer a minimalist look.

Compatibility

Both coolers offer wide compatibility with various CPU sockets, making them versatile options for different setups. The Thermalright Assassin X 120R supports a range of Intel and AMD sockets, making it suitable for most modern CPUs. The installation process is straightforward, aided by instructional materials provided by the manufacturer.

The Peerless Assassin 120 Mini also supports the same Intel and AMD sockets, ensuring it can fit into a wide array of builds. Its compact size is particularly beneficial for users with limited space in their cases, making it an excellent choice for smaller builds without sacrificing cooling performance.

Price Comparison

The Thermalright Assassin X 120R is priced at $24.90, making it about 17% cheaper than the Peerless Assassin 120 Mini, which retails for $34.39. This price difference may influence budget-conscious consumers looking for effective cooling solutions. While the Peerless offers additional features and slightly better cooling performance, the Assassin X 120R provides a compelling value for its price.

Which should you buy?

Deciding between the Thermalright Assassin X 120R and the Peerless Assassin 120 Mini comes down to individual preferences and specific needs. If you prioritize aggressive cooling performance, aesthetic features like a digital display, and a lower price point, the Assassin X 120R is an excellent choice. However, if you are looking for a quieter operation, compact design, and advanced heat-pipe technology, the Peerless Assassin 120 Mini may justify its higher price. Ultimately, both coolers present solid options for different user requirements within the CPU cooling category.