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Thermalright AXP90 X47 Full Low Profile CPU Cooler, vs Thermalright Peerless Assassin 120 SE V2 CPU

Updated August 2026 — Thermalright AXP90 X47 Full Low Profile CPU Cooler, wins on noise level and design, Thermalright Peerless Assassin 120 SE V2 CPU wins on airflow and cooling.

The Thermalright AXP90 X47 is ideal for compact builds with low noise, while the Peerless Assassin 120 SE V2 excels in high-performance cooling. Choose based on your system size and cooling needs.

Why Thermalright AXP90 X47 Full Low Profile CPU Cooler, is better

Compact Size

AXP90 X47 is only 47mm tall.

Lower Noise

AXP90 X47 operates at 22.4 dB(A).

Price

AXP90 X47 is cheaper at $33.99.

Why Thermalright Peerless Assassin 120 SE V2 CPU is better

Cooling Performance

Peerless Assassin has higher airflow at 88.89 CFM.

Heat Pipes

Peerless Assassin features 6 heat pipes.

Fan Speed

Peerless Assassin fans can reach 1850 RPM.

Overall score

Thermalright AXP90 X47 Full Low Profile CPU Cooler,
75
Thermalright Peerless Assassin 120 SE V2 CPU
85

Specifications

SpecThermalright AXP90 X47 Full Low Profile CPU Cooler,Thermalright Peerless Assassin 120 SE V2 CPU
Heat Pipes46
Airflow42.58 CFM88.89 CFM
Noise Level22.4 dB(A)29.5 dB(A)
Fan SpeedN/A1850 RPM
CompatibilityAMD AM4/AM5, Intel LGA 1150-1700AMD AM4/AM5, Intel LGA 1851/1700

Dimension comparison

Thermalright AXP90 X47 Full Low Profile CPU Cooler,Thermalright Peerless Assassin 120 SE V2 CPU

Design and Size

The Thermalright AXP90 X47 Full Low Profile CPU Cooler is designed for compact builds, measuring just 47mm in height. In contrast, the Thermalright Peerless Assassin 120 SE V2 CPU Cooler features a dual tower design, standing at 155mm tall. This significant height difference makes the AXP90 X47 an ideal choice for small form factor cases, while the Peerless Assassin is more suited for larger setups where space is less of a constraint. The AXP90 X47's ultra-compact design not only saves space but also incorporates a 92mm PWM fan, making it a quiet option with a noise level of 22.4 dB(A). Meanwhile, the Peerless Assassin's dual 120mm fans can reach 1850 RPM, providing robust cooling for high-performance applications.

Cooling Performance

The Thermalright Peerless Assassin 120 SE V2 is engineered for high-load scenarios, featuring six heat pipes and dual 120mm PWM fans that deliver an airflow of up to 88.89 CFM. This design enhances heat dissipation during intensive tasks such as gaming and multitasking. The AXP90 X47, while it has a smaller footprint, incorporates four heat pipes and a 92mm fan that achieves 42.58 CFM. The higher airflow and fan speed of the Peerless Assassin make it a strong contender for users who push their systems to the limit, while the AXP90 X47 still manages efficient cooling for everyday tasks and moderate gaming.

Compatibility

When it comes to compatibility, both coolers support a range of sockets. The AXP90 X47 is compatible with AMD AM4, AM5, and various Intel sockets including LGA 1150 through 1700, making it versatile for many builds. The Peerless Assassin 120 SE V2 also supports AMD AM4 and AM5, along with Intel LGA 1851 and 1700, ensuring broad compatibility with modern systems. This means that regardless of your platform, either cooler can be a suitable option, but the AXP90 X47 shines in smaller builds where space is a premium.

Noise Levels

The AXP90 X47 operates at a notably lower noise level of 22.4 dB(A), making it an excellent choice for users who prioritize a quiet computing environment. On the other hand, the Peerless Assassin 120 SE V2, while more powerful, operates at a maximum noise level of 29.5 dB(A). This difference in noise levels can be significant for users working in quiet settings or for those who prefer a near-silent operation. The AXP90 X47's quieter performance combined with its effective cooling makes it an attractive option for noise-sensitive environments.

Price Point

In terms of pricing, the Thermalright AXP90 X47 is currently priced at $33.99, making it about 17% cheaper than the Peerless Assassin 120 SE V2, which retails for $38.99. This price difference could be a deciding factor for budget-conscious consumers looking for effective cooling without breaking the bank. However, the additional cost of the Peerless Assassin could be justified for users needing superior cooling performance for high-end applications.

Installation and Ease of Use

Both coolers are designed for straightforward installation, but their installation processes may differ due to their sizes and designs. The compact nature of the AXP90 X47 allows it to fit into tighter spaces, potentially making it easier to install in small cases. Conversely, the Peerless Assassin, with its dual tower and larger dimensions, may require more clearance and careful placement but offers an intuitive installation process for those familiar with larger coolers. Users should consider their case size and personal comfort level with installation when choosing between these options.

Aesthetics

Aesthetically, both coolers maintain a professional look, but they cater to different design preferences. The AXP90 X47 features a sleek and minimalist design, making it suitable for users who prefer a subtle appearance in their builds. In contrast, the Peerless Assassin 120 SE V2, with its dual tower structure, has a more aggressive and industrial look that may appeal to gamers and enthusiasts. The choice between these two may ultimately come down to personal taste in aesthetics and how they fit into the overall build design.

Which should you buy?

Choosing between the Thermalright AXP90 X47 Full Low Profile CPU Cooler and the Thermalright Peerless Assassin 120 SE V2 CPU Cooler largely depends on your specific needs and system requirements. If you're building a compact system and require a cooler that performs effectively in tight spaces while maintaining a low noise level, the AXP90 X47 is the better option at $33.99. However, for users who prioritize maximum cooling performance for gaming and intensive tasks, the Peerless Assassin, priced at $38.99, offers superior airflow and cooling capabilities. Ultimately, your decision should hinge on your budget, system size, and cooling needs.