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ARCTIC Liquid Freezer III Pro 240 A-RGB - vs Thermalright Peerless Assassin 120 Black CPU Air

Updated August 2026 — ARCTIC Liquid Freezer III Pro 240 A-RGB - wins on aesthetics and cooling performa, Thermalright Peerless Assassin 120 Black CPU Air wins on value for money.

The ARCTIC Liquid Freezer III Pro 240 A-RGB offers superior cooling performance and features compared to the Thermalright Peerless Assassin 120 Black, making it the better choice for high-performance builds.

Why ARCTIC Liquid Freezer III Pro 240 A-RGB - is better

Cooling Performance

Liquid cooling provides better heat dissipation.

Noise Levels

Quieter operation under load due to liquid cooling.

Aesthetic Appeal

Customizable RGB lighting enhances visual appeal.

Why Thermalright Peerless Assassin 120 Black CPU Air is better

Price

More budget-friendly option.

Installation

Simpler installation with metal fasteners.

Compact Design

Dual-tower design fits in tighter spaces.

Overall score

ARCTIC Liquid Freezer III Pro 240 A-RGB -
88
Thermalright Peerless Assassin 120 Black CPU Air
75

Specifications

SpecARCTIC Liquid Freezer III Pro 240 A-RGB -Thermalright Peerless Assassin 120 Black CPU Air
Cooling TypeLiquidAir
Max AirflowN/A66.17 CFM
Noise Level≤25 dB≤25.6 dB
Socket CompatibilityAM4/AM5, LGA1700AM4/AM5, LGA115X
Integrated FanYesNo

Dimension comparison

ARCTIC Liquid Freezer III Pro 240 A-RGB -Thermalright Peerless Assassin 120 Black CPU Air

Overview of the ARCTIC Liquid Freezer III Pro 240 A-RGB

The ARCTIC Liquid Freezer III Pro 240 A-RGB is a high-performance AIO CPU cooler that offers advanced cooling technology and compatibility with various CPU sockets. Priced at $80.00, it features a 240 mm radiator, PWM pump, and an integrated VRM fan for additional cooling efficiency. This cooler is designed to enhance cooling performance, particularly under heavy loads, making it suitable for gamers and power users alike.

The product boasts an optimized contact frame for Intel and AMD processors, ensuring better heat dissipation and longevity for your CPU. Additionally, ARCTIC's P12 Pro fans provide higher maximum speeds and quieter operation at lower speeds, making it a compelling choice for those looking for effective cooling solutions.

Overview of the Thermalright Peerless Assassin 120 Black

The Thermalright Peerless Assassin 120 Black offers a competitive air cooling solution at a lower price point of $38.90. This CPU cooler features a dual-tower design with six heat pipes, allowing for efficient heat dissipation and suitable performance for various AMD and Intel CPUs. It aims to provide excellent cooling efficiency, particularly with its AGHP technology that optimizes heat transfer.

This cooler also includes two PWM fans that contribute to its cooling capabilities, with a maximum airflow of 66.17 CFM and a noise level of under 25.6 dB. Its price point makes it an attractive option for budget-conscious users who do not want to compromise on performance.

Cooling Performance

When it comes to cooling performance, the ARCTIC Liquid Freezer III Pro 240 A-RGB stands out with its water cooling capability and integrated VRM fan. The 240 mm radiator allows for superior heat dissipation, especially during intense gaming sessions or heavy workloads. Its design is tailored for high-performance CPUs, ensuring they remain cool even under pressure.

In contrast, the Thermalright Peerless Assassin 120 Black, while effective, relies on air cooling technology. It utilizes six heat pipes and dual fans to enhance its cooling capabilities but may not match the performance of liquid cooling systems in extreme conditions. While the Peerless Assassin is efficient, users seeking maximum cooling potential might lean towards the ARCTIC cooler.

Noise Levels

Noise levels are an important consideration for many users. The ARCTIC Liquid Freezer III Pro 240 A-RGB is designed to operate quietly, especially at lower fan speeds, making it a suitable choice for users who prioritize a quieter computing environment. The P12 Pro fans are engineered to deliver performance with reduced noise, ensuring that high heat loads do not translate into excessive sound.

On the other hand, the Thermalright Peerless Assassin 120 Black also emphasizes quiet operation, with its fans producing a maximum noise level of 25.6 dB. While both coolers aim for minimal noise, the performance at high loads may vary, with the ARCTIC cooler likely having an edge due to its liquid cooling design, which generally operates quieter than air coolers under stress.

Installation Process

The installation processes for both coolers cater to different preferences. The ARCTIC Liquid Freezer III Pro is designed with native offset mounting for both Intel and AMD sockets, simplifying the installation procedure and ensuring optimal contact with the CPU. The integrated cable management system helps reduce clutter, making for a cleaner build.

Conversely, the Thermalright Peerless Assassin 120 Black includes metal fasteners for both Intel and AMD platforms, promoting a straightforward setup. Its dual-tower structure can be a bit bulkier, which might complicate installation in tighter cases. Overall, both products offer user-friendly installation options, but the ARCTIC cooler may have a slight advantage with its optimized design.

Aesthetic Appeal

Aesthetics can play a significant role in a PC build, and the ARCTIC Liquid Freezer III Pro 240 A-RGB excels with its customizable RGB lighting. This feature allows users to match the cooler's appearance with the rest of their build, adding a visually pleasing element to their gaming rig or workstation.

In contrast, the Thermalright Peerless Assassin 120 Black features a sleek black design with an aluminum heatsink cover, providing a more understated look. While it may not offer RGB lighting, its modern design can still complement a variety of setups. Ultimately, the choice between the two may depend on personal preference regarding visual style.

Price Comparison

The ARCTIC Liquid Freezer III Pro 240 A-RGB is priced at $80.00, while the Thermalright Peerless Assassin 120 Black is significantly cheaper at $38.90. This represents about a 51% difference in price, making the Thermalright cooler a more budget-friendly option for users who are looking to save money without sacrificing too much on performance.

However, the higher price of the ARCTIC cooler can be justified by its advanced cooling technology, liquid cooling capabilities, and additional features like the integrated VRM fan and RGB aesthetics. Users need to weigh their budget against the performance benefits when making their decision.

Which should you buy?

Ultimately, the choice between the ARCTIC Liquid Freezer III Pro 240 A-RGB and the Thermalright Peerless Assassin 120 Black hinges on individual needs and budget constraints. If maximum cooling performance, quiet operation, and aesthetic appeal are top priorities, the ARCTIC cooler is worth the investment at $80.00. However, if you're looking for a cost-effective solution that still delivers solid performance, the Thermalright Peerless Assassin 120 Black at $38.90 is an excellent choice. Both coolers cater to different user preferences, making it essential to assess what features matter most to you before making a purchase.