vsversusfinder

Thermalright AXP90 X47 Full Low Profile CPU Cooler, vs Thermalright Peerless Assassin 120 SE V3 CPU Air

Updated August 2026 — Thermalright AXP90 X47 Full Low Profile CPU Cooler, wins on size and design, Thermalright Peerless Assassin 120 SE V3 CPU Air wins on heat pipes and cooling eff..

The Thermalright AXP90 X47 is ideal for compact builds and quieter operation, while the Peerless Assassin 120 SE V3 excels in cooling performance for larger setups.

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

Price

AXP90 X47 is $1.91 cheaper

Size

AXP90 X47 is more compact for small cases

Noise

AXP90 X47 operates at a lower noise level

Why Thermalright Peerless Assassin 120 SE V3 CPU Air is better

Cooling

Peerless Assassin has higher airflow and heat pipes

Fan Size

Peerless Assassin uses dual 120mm fans

Compatibility

Peerless Assassin supports newer Intel sockets

Overall score

Thermalright AXP90 X47 Full Low Profile CPU Cooler,
75
Thermalright Peerless Assassin 120 SE V3 CPU Air
85

Specifications

SpecThermalright AXP90 X47 Full Low Profile CPU Cooler,Thermalright Peerless Assassin 120 SE V3 CPU Air
Heat Pipes46
Fan RPMPWM2000
Noise Level22.4 dB(A)29.8 dB(A)
CompatibilityLGA 1150/1151/1200/1700, AM4/AM5LGA 1851/1700/1150/1151/1155/1156/1200, AM4/AM5
MaterialCopperAluminium

Dimension comparison

Thermalright AXP90 X47 Full Low Profile CPU Cooler,Thermalright Peerless Assassin 120 SE V3 CPU Air

Overview of the Thermalright AXP90 X47 and Thermalright Peerless Assassin 120 SE V3

The Thermalright AXP90 X47 is priced at $33.99, while the Thermalright Peerless Assassin 120 SE V3 is available for $35.90, making the AXP90 X47 about 5.3% cheaper. Both products are designed to deliver efficient cooling solutions for CPUs, but they cater to different user needs and setups. This comparison will delve into their design, performance, compatibility, and more to help potential buyers decide which cooler best suits their requirements.

Design and Aesthetics

The AXP90 X47 features an ultra-compact low-profile design with a total height of just 47mm. Its small footprint makes it ideal for compact builds, particularly in ITX cases. The cooler's copper base offers excellent heat conductivity, while the plating anti-oxidation protective layer enhances its durability. In contrast, the Peerless Assassin 120 SE V3 boasts a more robust design with a double-tower structure and dual 120mm fans. This larger cooler measures 125mm in width and 155mm in height, making it less suitable for small cases but potentially more effective in larger setups. The aesthetic appeal of both coolers may vary based on personal preference, but the AXP90 X47's sleek look may attract users with minimalist builds.

Cooling Performance

When it comes to cooling performance, the AXP90 X47 is equipped with four heat pipes and a 92mm PWM fan that delivers an airflow of 42.58 CFM with a noise level of 22.4 dB(A). This setup is designed for efficient heat dissipation in low-profile systems. On the other hand, the Peerless Assassin 120 SE V3 features six heat pipes and dual 120mm fans operating at up to 2000 RPM, with an impressive airflow of 70.84 CFM and a slightly higher noise level of 29.8 dB(A). These specifications suggest that while the AXP90 X47 is optimized for quieter operation in space-constrained environments, the Peerless Assassin 120 SE V3 may offer superior cooling performance for more demanding setups.

Compatibility

The AXP90 X47 is compatible with a range of Intel and AMD sockets, including LGA 1150, 1151, 1200, 1700, and AMD's AM4 and AM5. This broad compatibility makes it a flexible choice for various builds. Meanwhile, the Peerless Assassin 120 SE V3 also supports multiple platforms, including Intel LGA 1851, 1700, 1150, 1151, and AMD AM4/AM5. Both coolers cater to modern CPU sockets, but the Peerless Assassin's wider support for newer Intel generations may appeal to users planning to invest in the latest hardware.

Noise Levels

In terms of operational noise, the AXP90 X47 is designed to operate quietly with a maximum noise level of 22.4 dB(A). This makes it an excellent choice for users who prioritize a silent computing experience, such as gamers or professionals working in noise-sensitive environments. Conversely, while the Peerless Assassin 120 SE V3 operates at a maximum noise level of 29.8 dB(A), it compensates for this with significantly higher cooling performance. Users who do not mind a bit of extra noise in exchange for superior cooling may prefer the Peerless Assassin despite its louder operation.

Installation Process

The installation process for both coolers is relatively straightforward, although the AXP90 X47 is designed specifically for compact builds and may offer an easier installation in tight spaces. It includes mounting accessories suitable for various CPU sockets. The Peerless Assassin 120 SE V3, with its larger size and dual fans, requires a bit more space and potentially a more careful installation process, especially on AMD platforms, which necessitate the use of the motherboard's original backplate. Users should consider their own skill level and case dimensions when choosing between these two options.

Price Comparison

The Thermalright AXP90 X47 is priced at $33.99, while the Peerless Assassin 120 SE V3 comes in at $35.90. This price difference of $1.91 makes the AXP90 X47 about 5.3% cheaper than its counterpart. While both products are competitively priced within the CPU cooler market, budget-conscious consumers may find the AXP90 X47 to be the more appealing option. However, it’s essential to weigh the price against the specific cooling needs and case compatibility before making a decision.

Which should you buy?

In conclusion, choosing between the Thermalright AXP90 X47 and the Thermalright Peerless Assassin 120 SE V3 ultimately depends on your specific needs. The AXP90 X47 excels in compactness, quiet operation, and price efficiency, making it ideal for small form factor builds. Meanwhile, the Peerless Assassin 120 SE V3 offers superior cooling performance and is better suited for larger cases and more demanding cooling requirements, despite being slightly louder and more expensive. Evaluate your system's compatibility, performance needs, and budget to make the best choice for your build.