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Thermalright Peerless Assassin 120 SE V2 CPU Cooler vs Thermalright Assassin King 120 SE ARGB CPU Air Cooler

Updated August 2026The Thermalright Peerless Assassin 120 SE V2 offers superior cooling performance and features, making it the better choice for high-TDP CPUs. However, the Assassin King 120 SE ARGB is more budget-friendly and quieter.

The Thermalright Peerless Assassin 120 SE V2 offers superior cooling performance and features, making it the better choice for high-TDP CPUs. However, the Assassin King 120 SE ARGB is more budget-friendly and quieter.

Why Thermalright Peerless Assassin 120 SE V2 CPU Cooler is better

Cooling Performance

Higher TDP of 265W vs 235W

Airflow

88.19 CFM vs 66.17 CFM

Build Quality

Heavier materials for better durability

Why Thermalright Assassin King 120 SE ARGB CPU Air Cooler is better

Price

C$24.59 vs C$54.90

Noise Level

Quieter at ≤25.6 dB(A) vs ≤29.5 dB(A)

Aesthetic Appeal

ARGB lighting feature

Overall score

Thermalright Peerless Assassin 120 SE V2 CPU Cooler
85
Thermalright Assassin King 120 SE ARGB CPU Air Cooler
70

Specifications

SpecThermalright Peerless Assassin 120 SE V2 CPU CoolerThermalright Assassin King 120 SE ARGB CPU Air Cooler
TDP265W235W
Airflow88.19 CFM66.17 CFM
Noise Level≤29.5 dB(A)≤25.6 dB(A)
Fan Speed1850 RPM1550 RPM
Socket SupportLGA 1851/1700/1200/115X, AM4/AM5LGA 115X/1200/1700, AM4/AM5

Dimension comparison

Thermalright Peerless Assassin 120 SE V2 CPU CoolerThermalright Assassin King 120 SE ARGB CPU Air Cooler

Price Comparison

When it comes to price, the Thermalright Assassin King 120 SE ARGB CPU Air Cooler is significantly more affordable at C$24.59, while the Thermalright Peerless Assassin 120 SE V2 CPU Cooler is priced at C$54.90. This difference of C$30.31 makes the Assassin King an attractive option for budget-conscious consumers. However, price alone should not be the sole factor in your decision-making process, as the performance and features also play crucial roles in choosing the right cooler for your needs.

Design and Dimensions

In terms of design, the Thermalright Peerless Assassin 120 SE V2 has a more substantial footprint compared to the Assassin King. The Peerless model measures 125mm x 135mm x 155mm, whereas the Assassin King is slightly more compact at 120mm x 73mm x 148mm. The larger dimensions of the Peerless Assassin could allow for better heat dissipation due to its increased surface area. However, the smaller size of the Assassin King makes it a better fit for medium-sized computer cases, appealing to users looking for space-efficient cooling solutions.

Cooling Performance

Cooling performance is a critical factor for any CPU cooler, and the Thermalright Peerless Assassin 120 SE V2 excels in this area with a thermal design power (TDP) of up to 265W. This capability is supported by its six 6mm heat pipes and dual thickened PWM fans, which can achieve an airflow of 88.19 CFM at a noise level of ≤29.5 dB(A). In contrast, the Assassin King has a TDP range of 125 to 235W, with a maximum airflow of 66.17 CFM and a slightly quieter operation at ≤25.6 dB(A). Therefore, for users requiring extreme cooling performance, the Peerless Assassin may be the superior choice.

Fan Technology

Both products feature PWM fans, but they differ in specifications and performance. The Peerless Assassin's TL-C12C-X28 V2 fan operates at a speed of 1850 RPM, providing robust airflow for effective cooling. In contrast, the Assassin King's TL-C12C-S fan has a lower maximum speed of 1550 RPM. While both fans are efficient, the higher RPM of the Peerless model suggests it may provide enhanced cooling capabilities under load. Additionally, the Assassin King boasts ARGB lighting, adding aesthetic appeal that could attract gamers and users looking to enhance their build's visual appeal.

Compatibility

Compatibility is an essential consideration when selecting a CPU cooler. The Thermalright Peerless Assassin 120 SE V2 supports a wider range of CPU sockets, including Intel LGA 1851/1700/1200/115X and AMD AM4/AM5. This versatility makes it suitable for a broader array of builds. The Assassin King, while also compatible with Intel and AMD sockets (115X/1200/1700/AM4/AM5), is slightly more limited in its Intel support. For users with specific CPU models, the Peerless Assassin may offer more flexibility, especially for those with the latest Intel processors.

Build Quality and Materials

Both coolers are constructed with quality materials, but the Peerless Assassin features a more robust design. It utilises an aluminum fin structure with a pure copper base and six copper heat pipes, ensuring efficient heat transfer. The Assassin King also employs aluminum and includes effective heat pipes, but its overall weight is lighter at 0.52 kg compared to the Peerless model's 0.61 kg. The build quality of both products is commendable, but the Peerless Assassin’s heavier materials may contribute to better long-term durability and performance.

Noise Levels

Noise levels are a critical aspect for users who want a quiet computing experience. The Thermalright Assassin King operates at a maximum noise level of ≤25.6 dB(A), making it a quieter option compared to the Peerless Assassin's maximum of ≤29.5 dB(A). This could make the Assassin King a preferable choice for users who prioritize silence, such as those working in noise-sensitive environments or seeking a quieter gaming setup. However, the difference in noise levels may not be significant enough to deter users who value performance over quietness.

Which should you buy?

Ultimately, the decision between the Thermalright Peerless Assassin 120 SE V2 and the Thermalright Assassin King 120 SE ARGB CPU Air Cooler boils down to your specific needs and preferences. If you are looking for superior cooling performance, especially for high-TDP CPUs, the Peerless Assassin is the clear choice with its higher TDP rating and airflow capabilities. However, if budget constraints, quieter operation, and aesthetic appeal are more important factors for you, the Assassin King offers excellent value at a significantly lower price. Consider your system requirements and personal preferences to make the best decision for your build.

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Thermalright Peerless Assassin 120 SE V2 CPU Cooler vs Thermalright Assassin King 120 SE ARGB CPU Air Cooler | versusfinder