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

Updated August 2026 — Thermalright Peerless Assassin 120 Digital ARGB leads on cooling and compatibility.

The Thermalright Assassin X 120R offers a more budget-friendly option with decent performance, while the Peerless Assassin 120 excels in cooling capabilities. Choose based on your specific needs and budget.

Why Thermalright Assassin X 120R Digital ARGB Black is better

Price

Assassin X is significantly cheaper at $22.90.

Noise

Assassin X is designed to reduce noise effectively.

Installation

Assassin X has a simpler installation process.

Why Thermalright Peerless Assassin 120 Digital ARGB is better

Cooling

Peerless has 6 heat pipes for better heat dissipation.

Fan Speed

Peerless operates at a higher fan speed of 1850 RPM.

Height

Peerless is designed for better compatibility with high-performance setups.

Overall score

Thermalright Assassin X 120R Digital ARGB Black
75
Thermalright Peerless Assassin 120 Digital ARGB
85

Specifications

SpecThermalright Assassin X 120R Digital ARGB BlackThermalright Peerless Assassin 120 Digital ARGB
Max RPM20001850
Noise Level≤25.6≤25.6
ARGBYesYes
CompatibilityAM4/AM5AM4/AM5
Fan TypePWMPWM

Dimension comparison

Thermalright Assassin X 120R Digital ARGB BlackThermalright Peerless Assassin 120 Digital ARGB

Introduction to CPU Coolers

In the world of CPU coolers, effective thermal management is crucial for maintaining system performance. In this comparison, we will evaluate two models from Thermalright: the Thermalright Assassin X 120R Digital ARGB Black CPU Air Cooler and the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler. While both aim to provide superior cooling for your CPU, they differ significantly in design, performance, and price.

Pricing and Value

The Thermalright Assassin X 120R is priced at $22.90, making it about 50% cheaper than the Thermalright Peerless Assassin 120, which retails for $45.90. This substantial price difference may appeal to budget-conscious buyers or those looking for an efficient cooling solution without breaking the bank. Despite the lower price, the Assassin X still offers a range of features that could justify its price point, especially for users who need effective cooling in a compact form factor.

Cooling Performance

When it comes to cooling performance, the Thermalright Peerless Assassin 120 boasts a significant advantage with its six heat pipes compared to the Assassin X's four. The Peerless model is designed with dual fans and operates at a maximum speed of 1850 RPM, which may lead to improved thermal dissipation. In contrast, the Assassin X features a 2000 RPM PWM fan, which can dynamically adjust to the temperature of the motherboard. This feature could make the Assassin X more efficient under varying loads, although its fewer heat pipes may limit its overall cooling capabilities in high-performance scenarios.

Design and Aesthetics

Aesthetically, both coolers come equipped with digital screens and ARGB lighting, which can enhance the visual appeal of your build. The Thermalright Assassin X has a digital screen top cover that not only improves its appearance but also allows for real-time temperature monitoring and control through software. The Peerless Assassin 120 also features a digital screen, set within a sleek magnetic top cover. Both designs prioritize a modern look, but the aesthetic choice may ultimately depend on personal preference.

Size and Compatibility

In terms of dimensions, the Thermalright Assassin X stands at 151mm tall, while the Peerless Assassin 120 is slightly taller at 162mm. The height difference may be negligible for most users, but it is worth noting for those with compact cases. Both coolers are compatible with a range of CPU sockets, including AM4, AM5, and Intel LGA series, ensuring versatility across various builds. However, the additional height of the Peerless could impact compatibility with certain smaller cases, making the Assassin X a better choice for tighter spaces.

Noise Levels

Noise levels can significantly affect the user experience, especially in a quiet workspace. The thermal performance of the Assassin X, with its 2000 RPM fan, is designed to reduce noise through silicone corner pads, which help minimize vibration. On the other hand, the Peerless Assassin 120 operates at a maximum noise level of 25.6 dB, which is relatively quiet but may not be as silent as the Assassin X under full load. Users sensitive to noise should consider how each model performs in terms of sound output during operation.

Installation Process

Both the Thermalright Assassin X and Peerless Assassin 120 are designed for ease of installation. Each cooler comes with mounting clips compatible with various CPU sockets, including the latest AMD and Intel platforms. However, some users may find the installation tutorial for the Peerless to be slightly more complex due to its dual-fan configuration. In contrast, the Assassin X's simpler setup could make it a more attractive option for those who prioritize straightforward installation.

User Experience and Feedback

While neither product has a bestseller rank listed, both coolers have received positive feedback from users for their cooling performance and aesthetic features. The Assassin X's ability to adjust fan speed based on temperature is a notable point of praise, allowing for effective thermal management without manual adjustments. Conversely, users appreciate the Peerless Assassin 120’s robust heat dissipation capabilities, especially under heavy loads, making it a preferred choice for overclockers.

Which should you buy?

Choosing between the Thermalright Assassin X 120R and the Thermalright Peerless Assassin 120 ultimately depends on your specific needs and budget. If you're looking for a cost-effective solution with decent performance and a compact design, the Assassin X at $22.90 is a solid choice. However, if you prioritize superior cooling capabilities and are willing to invest more for better thermal management, the Peerless Assassin 120, priced at $45.90, may be the better option. Evaluate your cooling needs, case compatibility, and budget to make an informed decision.