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Thermalright Assassin X 120R Digital ARGB Black vs Thermalright Peerless Assassin 120 SE V3 CPU Air

Updated August 2026 — Thermalright Peerless Assassin 120 SE V3 CPU Air leads on cooling efficien and aesthetics.

The Thermalright Peerless Assassin 120 SE V3 offers superior cooling performance and design, making it the better choice for advanced users. However, the Assassin X 120R is a more budget-friendly option.

Why Thermalright Assassin X 120R Digital ARGB Black is better

Lower Price

Assassin X is $24.90 compared to Peerless at $35.90.

Digital Screen

Assassin X features a digital screen for real-time monitoring.

Simplicity

Assassin X has a simpler installation process.

Why Thermalright Peerless Assassin 120 SE V3 CPU Air is better

Cooling Efficiency

Peerless has dual fans and six heat pipes for better cooling.

Design

Peerless features a double-tower design for improved airflow.

Advanced Technology

Peerless uses AGHP heat pipe technology for enhanced performance.

Overall score

Thermalright Assassin X 120R Digital ARGB Black
75
Thermalright Peerless Assassin 120 SE V3 CPU Air
85

Specifications

SpecThermalright Assassin X 120R Digital ARGB BlackThermalright Peerless Assassin 120 SE V3 CPU Air
Heat Pipes46
Fan Speed2000RPM2000RPM
Noise Level≤29.8dB(A)≤29.8dB(A)
MaterialAluminumAluminum
CompatibilityAM4/AM5, LGA 1851/1700/1150/1151/1155/1156/1200AM4/AM5, LGA 1851/1700/1150/1151/1155/1156/1200

Dimension comparison

Thermalright Assassin X 120R Digital ARGB BlackThermalright Peerless Assassin 120 SE V3 CPU Air

Overview of the Products

When comparing the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Thermalright Peerless Assassin 120 SE V3 CPU Air Cooler, it's essential to understand their core specifications and functionalities. The Assassin X 120R is priced at $24.90, while the Peerless Assassin 120 SE V3 is more expensive at $35.90, making the latter about 44% pricier. Both coolers are designed to efficiently manage CPU temperatures but approach the task with different designs and features.

Design and Build Quality

The Thermalright Assassin X 120R features a single-tower design with a digital screen on the top cover, enhancing its aesthetic appeal while providing real-time system monitoring. In contrast, the Thermalright Peerless Assassin 120 SE V3 utilizes a double-tower structure with dual fans for improved airflow and heat dissipation. The build quality of both products is robust, with both utilizing aluminum heatsink materials. The Peerless model has a height of 155mm, slightly taller than the 151mm of the Assassin X, which may influence compatibility with certain cases.

Cooling Performance

The cooling performance of both CPU coolers is noteworthy. The Assassin X 120R employs a 2000RPM fan and features four heat pipes, providing efficient cooling with a maximum air volume of 70.84CFM. On the other hand, the Peerless Assassin 120 SE V3 has a more advanced setup with six heat pipes and dual 120mm fans, which also operate at 2000RPM. This double-fan system allows for enhanced heat dissipation, making it potentially more effective under heavy loads compared to the single fan of the Assassin X.

Noise Levels

Both coolers aim for quiet operation, with an operating noise level of ≤29.8dB(A) reported for both models. This means that users can expect similar acoustic performance, making either cooler a good choice for quiet builds. However, the dual fans of the Peerless may slightly alter the noise profile under specific conditions, particularly during intense workloads. Users who prioritize silence alongside cooling efficiency might find this feature compelling.

Compatibility

Compatibility is a crucial factor when selecting a CPU cooler. Both the Assassin X 120R and the Peerless Assassin 120 SE V3 support a range of Intel and AMD sockets, including Intel LGA 1851/1700/1150/1151/1200 and AMD AM4/AM5. This broad compatibility makes both coolers versatile for various builds. However, it’s worth noting that installation for AMD platforms requires using the motherboard's original backplate for both products.

Aesthetic Features

Aesthetic features can significantly influence a builder’s choice, and here both coolers offer unique designs. The Assassin X 120R includes a digital screen on its top cover that displays real-time CPU and GPU temperatures, adding functional aesthetics. The ARGB lighting synchronization with the PWM fan enhances the visual appeal. In contrast, the Peerless Assassin 120 SE V3 opts for a sleek, matte black finish without additional digital displays but maintains a polished look with its dual towers and fans.

Pricing and Value

The price difference between the two coolers is significant, with the Assassin X 120R at $24.90 and the Peerless Assassin 120 SE V3 at $35.90. This means that the Peerless model is about 44% more expensive. While both coolers provide good value for their respective features, budget-conscious buyers may lean towards the Assassin X for its lower price and decent cooling performance, while those seeking advanced cooling solutions might find the additional cost of the Peerless justified.

User Experience and Installation

User experience can vary based on installation ease and operational performance. Both models come with installation accessories and instructions, but the simpler design of the Assassin X may make it slightly easier to install for beginners. The Peerless, with its dual-fan setup and more complex structure, may require a bit more effort during installation. However, both coolers are designed to be user-friendly, making them accessible for various levels of expertise.

Which should you buy?

Choosing between the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Thermalright Peerless Assassin 120 SE V3 CPU Air Cooler ultimately depends on your specific needs and budget. If you're looking for a cost-effective solution that still offers solid performance and an appealing design, the Assassin X at $24.90 is an excellent choice. However, if you prioritize superior cooling capabilities and don't mind spending an additional $11, the Peerless Assassin 120 SE V3 may provide better thermal management due to its dual-tower design and six heat pipes. Evaluate your requirements carefully to select the cooler that best fits your build.