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Thermalright Assassin X 120R SE V2 CPU Cooler, 4× vs Thermalright Assassin X120 Refined SE CPU Air

Updated July 2026 — Thermalright Assassin X120 Refined SE CPU Air leads on length and weight.

The Thermalright Assassin X 120R SE V2 offers solid performance at a lower price, while the Assassin X120 Refined SE features advanced technology for enhanced cooling. Choose based on budget or performance needs.

Why Thermalright Assassin X 120R SE V2 CPU Cooler, 4× is better

Price

Assassin X 120R SE V2 is cheaper by $1.31

Simplicity

Easier installation with straightforward design

Noise Level

Both have similar noise levels, but A is more budget-friendly

Why Thermalright Assassin X120 Refined SE CPU Air is better

Technology

AGHP technology enhances cooling efficiency

Longevity

Claims up to 20,000 hours of service life

Performance

Potentially better cooling under various orientations

Overall score

Thermalright Assassin X 120R SE V2 CPU Cooler, 4×
85
Thermalright Assassin X120 Refined SE CPU Air
88

Specifications

SpecThermalright Assassin X 120R SE V2 CPU Cooler, 4×Thermalright Assassin X120 Refined SE CPU Air
Max RPM15501550
Airflow66.17 CFM66.17 CFM
Noise Level≤25.6 dB(A)≤25.6 dB(A)
Socket SupportLGA1150/1151/1155/1156/1200/1700/1851, AM4/AM5LGA1150/1151/1155/1156/1200/1700/1851, AM4/AM5
Bearing TypeS-FDBS-FDB

Dimension comparison

Thermalright Assassin X 120R SE V2 CPU Cooler, 4×Thermalright Assassin X120 Refined SE CPU Air

Overview

The Thermalright Assassin X 120R SE V2 CPU Cooler is priced at $16.59, making it about 17% cheaper than the Thermalright Assassin X120 Refined SE CPU Air Cooler, which retails for $17.90. Both coolers are designed for effective thermal management, but they come with distinct features that cater to different user needs.

The Assassin X 120R SE V2 features four 6mm heat pipes and a 120mm RGB PWM fan that operates at a maximum speed of 1550 RPM. In contrast, the Assassin X120 Refined SE also utilizes a similar design with four heat pipes but emphasizes its AGHP technology, which aims to enhance cooling efficiency.

Design and Build Quality

In terms of design, both coolers feature aluminum heatsinks and are compatible with a wide range of CPU sockets, including Intel’s LGA 1150/1151/1155/1200/1700/1851 and AMD’s AM4/AM5. The Assassin X 120R SE V2 measures 120(L)x71(W)x148(H)mm, while the Assassin X120 Refined SE is slightly larger at 125(L)x71(W)x148(H)mm.

Both products are built with quality in mind, featuring metal fasteners that ensure reliable installation. However, the refined SE model boasts a more advanced AGHP technology, which helps mitigate the inverse gravity effect and can potentially provide better cooling performance under various orientations.

Performance

When it comes to cooling performance, both coolers have a fan speed of 1550 RPM and a maximum airflow of 66.17 CFM, while maintaining a noise level of ≤25.6 dB(A). This means both options provide efficient cooling without generating excessive noise.

However, the Assassin X120 Refined SE’s AGHP technique claims to enhance the lifespan of the cooler, offering up to 20,000 hours of industrial service life. This could be an important consideration for users looking for longevity in their cooling solutions.

Fan Technology

The fan technology is a critical differentiator between the two models. The Assassin X 120R SE V2 features S-FDB (Self-Lubricating Fluid Dynamic Bearing) bearings, which are designed to minimize noise while maximizing cooling efficiency. This design choice helps keep the fan quiet even under load.

On the other hand, the Assassin X120 Refined SE also uses S-FDB bearings but emphasizes its ability to enhance the cooling performance significantly. Both fans are PWM-controlled, allowing for efficient performance based on thermal demands, but the refined model’s additional technology may translate into slightly better performance during intense tasks.

Compatibility

Both coolers boast excellent compatibility with various CPU sockets. The Assassin X 120R SE V2 supports Intel LGA1150/1151/1155/1156/1200/1700/1851 and AMD AM4/AM5 sockets, similar to the Assassin X120 Refined SE, which offers support for the same Intel and AMD platforms.

The ability to cater to multiple socket types is crucial for users who might be upgrading their CPUs or building new systems, making both coolers versatile choices. However, the refined model’s AGHP technology may give it an edge in certain setups where orientation could affect cooling efficiency.

Price Comparison

The Assassin X 120R SE V2 is priced at $16.59, which makes it a budget-friendly option for those looking to save on cooling solutions. In contrast, the Assassin X120 Refined SE is priced at $17.90, which is approximately $1.31 more expensive.

This price difference of about 7.9% could influence buying decisions for budget-conscious consumers. However, potential buyers should weigh the additional features and technology of the refined model against the cost to determine which cooler offers better value for their specific needs.

User Experience

Both products are designed with user experience in mind, featuring detailed instructions for installation and ease of setup. The Assassin X 120R SE V2 focuses on providing a straightforward installation process with its metal fasteners and compatibility across multiple platforms.

Conversely, the Assassin X120 Refined SE's emphasis on advanced technology could appeal to users who are more technically inclined and interested in optimizing their cooling setup. Both products aim to create a user-friendly experience but cater to slightly different audiences based on their respective features.

Which should you buy?

In conclusion, the choice between the Thermalright Assassin X 120R SE V2 and the Assassin X120 Refined SE ultimately depends on individual preferences and requirements. If you are seeking a more economical option with solid performance, the Assassin X 120R SE V2, priced at $16.59, is an excellent choice.

However, if you are willing to invest a little more for enhanced technology and potential longevity, the Assassin X120 Refined SE, priced at $17.90, may offer better long-term value. Each cooler has its strengths, making either a viable option for those looking to improve their CPU cooling solutions.