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Thermalright Peerless Assassin 120 SE CPU Cooler, vs Thermalright Phantom Spirit 120SE CPU Air Cooler,

Updated August 2026 — Thermalright Peerless Assassin 120 SE CPU Cooler, wins on build quality and cooling perf, Thermalright Phantom Spirit 120SE CPU Air Cooler, wins on value for money.

The Thermalright Peerless Assassin 120 SE offers slightly better cooling performance, while the Phantom Spirit 120 SE is more budget-friendly.

Why Thermalright Peerless Assassin 120 SE CPU Cooler, is better

Cooling Performance

Higher RPM and heat pipes

Build Quality

Fully electroplated copper base

Brand Reputation

Established brand with 20 years in market

Why Thermalright Phantom Spirit 120SE CPU Air Cooler, is better

Price

Lower cost by $14.09

Heat Pipes

More heat pipes for potential efficiency

Noise Level

Slightly quieter operation at lower RPM

Overall score

Thermalright Peerless Assassin 120 SE CPU Cooler,
85
Thermalright Phantom Spirit 120SE CPU Air Cooler,
78

Specifications

SpecThermalright Peerless Assassin 120 SE CPU Cooler,Thermalright Phantom Spirit 120SE CPU Air Cooler,
Fan Speed1550 RPM1500 RPM
Airflow66.17 CFM66.17 CFM
Noise Level≤25.6 dB(A)≤25.6 dB(A)
Socket CompatibilityAM4/AM5, LGA 1700/1200AM4/AM5, LGA 1851/1700/1150/1151/1200
MaterialAluminum, CopperAluminum, Copper

Dimension comparison

Thermalright Peerless Assassin 120 SE CPU Cooler,Thermalright Phantom Spirit 120SE CPU Air Cooler,

Overview of Thermalright Peerless Assassin 120 SE

The Thermalright Peerless Assassin 120 SE CPU Cooler is priced at $49.99, making it a competitive option in the CPU cooling market. This cooler features six heat pipes and dual 120mm PWM fans that operate at a speed of 1550 RPM. The design incorporates Thermalright's AGHP technology, which helps mitigate the inverse gravity effect, ensuring optimal cooling performance regardless of the cooler's orientation. With dimensions of 125mm in length, 135mm in width, and 155mm in height, it is compatible with a variety of CPU sockets including AMD AM4 and AM5, as well as Intel LGA 1700 and 1200.

Overview of Thermalright Phantom Spirit 120 SE

The Thermalright Phantom Spirit 120 SE CPU Air Cooler is available at a lower price of $35.90, making it about 17% cheaper than its competitor, the Peerless Assassin. This cooler features seven heat pipes and dual 120mm TL-C12B V2 PWM fans, which run at a slightly lower speed of 1500 RPM. It also utilizes AGHP 4.0 technology for enhanced cooling performance. The dimensions are similar to the Peerless Assassin, measuring 125mm in length, 135mm in width, and 154mm in height, ensuring compatibility with a range of Intel and AMD sockets.

Cooling Performance

When it comes to cooling performance, both products leverage advanced technologies to achieve effective heat dissipation. The Peerless Assassin's six heat pipes and 1550 RPM fans provide robust airflow, with a maximum airflow of 66.17 CFM. On the other hand, the Phantom Spirit boasts seven heat pipes, which can potentially enhance its thermal transfer efficiency. While both coolers operate at similar noise levels of ≤25.6 dB(A), the Phantom Spirit's slightly lower RPM may contribute to a quieter operation under certain conditions.

Build Quality and Design

Build quality is crucial for longevity and efficiency in CPU coolers. The Peerless Assassin features an aluminum heat sink and a copper base, which is fully electroplated to enhance thermal conductivity. Its design allows for unobstructed RAM clearance. Conversely, the Phantom Spirit's construction includes anodized black frosted aluminum fins and a finely carved copper base, which not only improves aesthetic appeal but also maximizes heat dissipation. Both coolers are designed to fit within standard cases, but users should verify compatibility with their specific motherboards.

Installation Process

The installation process for both coolers is user-friendly, with mounting kits provided for various CPU sockets. The Peerless Assassin includes metal fasteners compatible with Intel and AMD platforms, although users must utilize the original motherboard's backplane for AMD installations. The Phantom Spirit also includes corresponding mounting plates and fasteners, making it a straightforward installation choice for users. Both coolers offer clear instructions to facilitate the setup process.

Brand Reputation

Thermalright has been a notable player in the cooling market for over 20 years, gaining a reputation for quality and performance. Both the Peerless Assassin and the Phantom Spirit reflect the brand's commitment to research and development in computer accessories. While neither product has a specific bestseller rank indicated, their features and pricing positions them as competitive options for PC builders seeking reliable cooling solutions.

Price Comparison

Price plays a significant role in decision-making for consumers. The Peerless Assassin is priced at $49.99, while the Phantom Spirit is available for $35.90. This price difference of about $14.09 may influence budget-conscious buyers, especially considering that both products offer similar dimensions and cooling capabilities. In terms of performance per dollar, the Phantom Spirit offers a more economical choice without sacrificing essential features.

Which should you buy?

Choosing between the Thermalright Peerless Assassin 120 SE and the Thermalright Phantom Spirit 120 SE ultimately depends on your specific needs and budget. If you prioritize a slightly higher cooling performance and don’t mind spending a bit more, the Peerless Assassin may be the better option. However, if cost-effectiveness is your primary concern, the Phantom Spirit’s lower price and competitive features make it an excellent choice. Both coolers provide solid performance, so consider your specific requirements and preferences before making a decision.