6 Best Alternatives to the Thermalright Assassin X 120 RGB CPU Cooler (2026)

How these models differ

Thermalright Assassin X 120 White ARGB

The Thermalright Assassin X 120 White ARGB swaps standard RGB for addressable RGB lighting, allowing for more complex color effects. It retains the same four heat pipes and 120mm fan size as the original model. The primary difference is the white finish, which suits builds with matching white components. It shares identical socket compatibility, covering AM4, AM5, and LGA 1700 platforms. This cooler is ideal if you want the same cooling performance but need a specific aesthetic to match your case. The fan speed and noise levels remain comparable, ensuring quiet operation in medium-sized cases.

Thermalright Assassin X 120R Digital ARGB Air Cooler

The Thermalright Assassin X 120R Digital ARGB Black introduces a digital display on the fan frame, a feature absent in the original RGB model. It uses a fan capable of 2000 RPM, offering higher potential airflow than the original's 1550 RPM. The black finish provides a stealth look compared to the standard color. Like the original, it supports modern sockets including AM5 and LGA 1700. This option suits users who want real-time temperature monitoring and higher airflow speeds. The digital interface adds a unique visual element, though it may require specific software integration for full functionality.

Thermalright 47mm Full Copper CPU Cooler

The Thermalright AXP90-X47 is a low-profile cooler standing only 47mm tall, significantly shorter than the original's 148mm height. It uses a full copper construction and four heat pipes to maximize heat transfer in a small footprint. This model is designed specifically for ITX cases with tight CPU clearance. While it sacrifices some cooling headroom compared to the larger tower cooler, it enables the use of standard-height RAM and smaller cases. It supports the same modern sockets as the original. This choice is best for compact builds where space is the primary constraint rather than maximum thermal performance.

Thermalright Burst Assassin 120 ARGB

The Thermalright Burst Assassin 120 ARGB features six heat pipes, providing more thermal mass than the original's four pipes. This design aims to improve heat dissipation for high-wattage processors on AM5 and LGA 1700 platforms. It retains the 120mm fan size and ARGB lighting, keeping the footprint similar to the original. The additional heat pipes allow for better performance under heavy loads. This cooler is suitable for users who need extra cooling capacity without increasing the fan size. It maintains quiet operation while offering enhanced thermal headroom for demanding workloads compared to the standard four-pipe design.

Thermalright Assassin King 120 5-Heatpipe Cooler

The Thermalright AK120 SE uses five heat pipes instead of the original's four, potentially improving heat transfer efficiency. It maintains the same 120mm fan size and supports identical socket combinations, including AM5 and LGA 1700. The height is slightly different at 5.83 inches, which remains compatible with most medium-sized cases. This model offers a practical upgrade in thermal mass for users who find the original insufficient. It keeps the same quiet operation focus, making it a direct performance step up. The design remains a single-tower configuration, fitting easily into standard ATX cases without blocking memory slots.

Thermalright Assassin King 120 SE White ARGB

The Thermalright AK120 SE White ARGB combines five heat pipes with addressable RGB lighting in a white finish. It matches the original in socket compatibility and general form factor, supporting AM4, AM5, and LGA 1700. The white color appeals to users building monochromatic systems. The five heat pipes offer slightly more thermal capacity than the original's four. This cooler is ideal for those who want the aesthetic of the white ARGB variant but need the extra heat pipe performance. It maintains the same quiet operation standards, ensuring it fits well in cases where noise levels are a priority.

Quick picks

Our 7 picks

1 Best overall

Thermalright Assassin X 120 RGB CPU Cooler

Best for: quiet cooling in medium-sized cases

Socket Compatibility

AM4, AM5, LGA1700, LGA1851, LGA1200

Cooler Height

148mm

Heat Pipes

4

Fan Size

120mm

Fan Speed

1550 RPM

Lighting

RGB

View on Amazon: Thermalright Assassin X 120 RGB CPU Cooler

This air cooler uses a 120mm fan running at 1550 RPM to move 66.17 CFM of air. It features four 6mm heat pipes and a pure copper base. The 148mm height fits most medium cases. You get RGB lighting and quiet operation at 25.6 dB. It supports modern Intel and AMD sockets for reliable cooling performance.

Pros

• Four 6mm heat pipes for efficient heat transfer
• 120mm PWM fan moves up to 66.17 CFM
• S-FDB bearings reduce noise and extend life
• 148mm height fits most standard cases
• RGB lighting shares a single interface

Cons

• Only four heat pipes compared to five or six in rivals
• 1550 RPM max speed is lower than 2000 RPM options
• Single 120mm fan limits total airflow capacity

Good fit if

• You need a cooler that fits in medium-sized cases
• You want quiet operation under 26 dB
• You use AM4, AM5, or LGA1700/1851 sockets

Skip if

• You require more than four heat pipes for high TDP CPUs
• You need a fan speed above 1550 RPM
• You have a case with less than 148mm CPU cooler clearance

Verdict: Thermalright Assassin X 120R SE V2 suits users who prioritize quiet operation and case compatibility over maximum airflow. It is a solid choice for standard builds using modern sockets.

2 Best budget

Thermalright Assassin X 120 White ARGB

Best for: quiet white ARGB builds

Socket Compatibility

AM4, AM5, LGA 115X, 1200, 1700, 1851

Cooler Height

148 mm

Heat Pipes

4

Fan Size

120 mm

TDP Rating

125-225 W

Fan Speed

1550 RPM

View on Amazon: Thermalright Assassin X 120 White ARGB

This white air cooler features four 6mm heat pipes and a 120mm PWM fan. It handles 125 to 225W TDP loads while maintaining noise levels under 25.6dB. The 148mm height fits most medium cases. You get ARGB lighting and broad socket support for Intel and AMD. It offers a quiet, efficient cooling solution for standard builds.

Pros

• Four 6mm heat pipes with AGHP technology
• 120mm PWM fan runs up to 1550 RPM
• Noise level stays under 25.6dB
• Supports Intel 1851 and AMD AM5 sockets
• White ARGB aesthetic

Cons

• 148mm height may block tall RAM modules
• Only four heat pipes limit peak performance
• 1550 RPM fan speed is moderate

Good fit if

• You want a white ARGB cooler
• You need support for the latest sockets
• You prefer quiet operation

Skip if

• You have very tall RAM sticks
• You need maximum cooling performance
• You prefer a black color scheme

Verdict: Thermalright AX120 SE ARGB White delivers reliable cooling for 125-225W processors with a clean white look. It fits users who prioritize quiet operation and modern socket compatibility over extreme thermal headroom.

3 Best black

Thermalright Assassin X 120R Digital ARGB Air Cooler

Best for: Users wanting a digital display and black finish

Socket Compatibility

AM4, AM5, LGA 1700/1851/1150/1151/1200

Cooler Height

151 mm

Heat Pipes

4

Fan Speed

2000 RPM

Lighting

ARGB

Color

Black

View on Amazon: Thermalright Assassin X 120R Digital ARGB Air Cooler

This black air cooler features a 2000 RPM PWM fan and four 6mm heat pipes with AGHP technology. The 151 mm height fits most cases. A digital screen connects via a 9-pin USB interface for software control. It supports ARGB lighting synchronized with motherboards. This model suits users who want high fan speeds and a dark aesthetic with unique display features.

Pros

• 2000 RPM PWM fan speed for strong airflow
• 4x6mm heat pipes with AGHP technology
• Digital screen with 9-pin USB motherboard connection
• 5V 3-pin ARGB lighting synchronization
• 151 mm height for broad case compatibility

Cons

• Requires TRCC software and 9-pin USB connection for digital screen
• Only four heat pipes compared to six-pipe alternatives
• Fan uses S-FDB bearing which may differ from standard sleeve types

Good fit if

• You prefer a black heatsink and fan assembly
• You want to use a digital display on your cooler
• You need a 2000 RPM fan for higher cooling performance

Skip if

• You want a cooler with six heat pipes
• You prefer RGB lighting without a digital screen
• You do not want to install additional software for the display

Verdict: Thermalright Assassin X 120R Digital ARGB Black offers a 2000 RPM fan and digital display for users who value specific software integration and high airflow speeds.

4 Best premium

Thermalright 47mm Full Copper CPU Cooler

Best for: ITX builds with tight CPU clearance

Socket Compatibility

AM4, AM5, LGA1700, 115X, 1200, 1851

Cooler Height

47mm

Heat Pipes

4

Tower Design

Low-Profile

Fan Size

92mm

System Type

ITX

View on Amazon: Thermalright 47mm Full Copper CPU Cooler

This is a low-profile air cooler designed for small form factor builds. It stands 47mm tall with a 92mm fan and four 6mm heat pipes. The cooler supports AMD AM4/AM5 and Intel LGA sockets. It uses a full copper construction with secondary reflow soldering for better heat transfer. You need this if your case has tight clearance around the CPU socket.

Pros

• 47mm total height for low-profile cases
• Four 6mm heat pipes for efficient heat transfer
• Full copper construction with secondary reflow soldering
• Supports AMD AM4/AM5 and Intel LGA sockets

Cons

• Small 92mm fan limits maximum airflow
• Low-profile design restricts use to ITX builds
• No RGB lighting or digital display included

Good fit if

• You are building an ITX system with limited CPU cooler height
• You need a cooler that fits under 50mm clearance
• You want a reliable copper-based cooler for a compact PC

Skip if

• You have a standard ATX case with high clearance
• You need high airflow for overclocking high-end CPUs
• You want RGB lighting or aesthetic customization

Verdict: Thermalright AXP90-X47 Low-Profile CPU Cooler is a specialized solution for ITX builders who need a 47mm tall cooler. It fits users with tight clearance who prioritize compact size over maximum cooling performance.

5 Best 6 heat pipes

Thermalright Burst Assassin 120 ARGB

Best for: AM5 and LGA1700 single-tower builds

Socket Compatibility

AM4, AM5, LGA1700/1851/1150/1151/1200

Cooler Height

154 mm

Heat Pipes

6

Tower Design

Single-Tower

Fan Size

120 mm

Fan Speed

1550 RPM

View on Amazon: Thermalright Burst Assassin 120 ARGB

This single-tower cooler uses six 6mm heat pipes with AGHP technology to move heat efficiently. It includes a 120mm PWM fan that reaches 1550 RPM with a maximum airflow of 66.17 CFM. The unit stands 154 mm tall and supports AM5 and LGA1700 sockets. It offers ARGB lighting and quiet operation at 25.6 dB. You get reliable cooling for modern processors without excessive bulk.

Pros

• Six 6mm heat pipes with AGHP technology
• 120mm PWM fan reaches 1550 RPM
• Supports AM5 and LGA1700 sockets
• ARGB lighting included

Cons

• Single-tower design limits cooling headroom
• 154 mm height restricts case compatibility
• Fan speed caps at 1550 RPM

Good fit if

• You need support for the latest AM5 or LGA1700 sockets
• You want ARGB lighting in a single-tower build
• You prefer quiet operation under 26 dB

Skip if

• You require dual-tower cooling for high-end CPUs
• Your case cannot fit a 154 mm cooler
• You need fan speeds above 1550 RPM

Verdict: Thermalright Burst Assassin 120 ARGB provides solid single-tower performance for AM5 and LGA1700 systems. It suits users who prioritize socket compatibility and quiet airflow over maximum cooling capacity.

6 Also great

Thermalright Assassin King 120 5-Heatpipe Cooler

Best for: Quiet cooling in medium-sized cases

Socket Compatibility

LGA 1700, 1851, 1200, AM4, AM5

Cooler Height

148 mm

Heat Pipes

5

Tower Design

Single-Tower

Fan Size

120mm

Fan Speed

1550 RPM

View on Amazon: Thermalright Assassin King 120 5-Heatpipe Cooler

This single-tower air cooler uses five 6mm copper heat pipes and a 120mm PWM fan running at 1550 RPM. The heatsink stands 148 mm tall, fitting medium-sized cases. It delivers 66.17 CFM of airflow while keeping noise below 25.6 dB. You get broad socket support for Intel LGA 1700 and AMD AM5. It suits users who need quiet cooling in compact builds.

Pros

• Five 6mm copper heat pipes with AGHP III technology
• 120mm PWM fan provides 66.17 CFM airflow
• Noise level remains under 25.6 dB at max speed
• Compatible with Intel LGA 1700/1851 and AMD AM4/AM5

Cons

• Single-tower design offers less cooling capacity than dual-tower alternatives
• 148 mm height may not fit in small form-factor cases
• No ARGB lighting included in this specific SE variant

Good fit if

• You are building in a medium-sized case with 148 mm clearance
• You prioritize low noise levels under 26 dB
• You need broad compatibility with modern Intel and AMD sockets

Skip if

• You require RGB lighting effects for your build
• You are installing in a small ITX case with low clearance
• You need maximum cooling performance for high-end overclocking

Verdict: Thermalright AK120 SE Single-Tower CPU Cooler fits users who value quiet operation and modern socket support in a standard mid-tower case. It is a practical option for standard cooling needs rather than extreme thermal demands.

7 Also great

Thermalright Assassin King 120 SE White ARGB

Best for: White-themed builds with LGA 1851

Socket Compatibility

AM4, AM5, LGA 1700, 1851, 1200, 115X

Cooler Height

148mm

Heat Pipes

5

Fan Size

120mm

Fan Speed

1550 RPM

Lighting

ARGB

View on Amazon: Thermalright Assassin King 120 SE White ARGB

The Thermalright AK120 SE White ARGB is a single-fan air cooler designed for modern Intel and AMD platforms. It features five 6mm heat pipes using AGHP III technology to manage heat effectively in any orientation. The included 120mm PWM fan delivers up to 66.17 CFM of airflow with noise levels capped at 25.6 dB. This white model includes ARGB lighting and measures 148mm in height, fitting most mid-sized cases.

Pros

• Five 6mm heat pipes with AGHP III technology
• White ARGB lighting for aesthetic matching
• Quiet operation at 25.6 dB maximum
• Broad socket support including LGA 1851 and AM5

Cons

• Single 120mm fan limits cooling headroom
• 148mm height may not fit small cases
• White color option restricts color matching

Good fit if

• You want a white build theme
• You need support for LGA 1851 sockets
• You prioritize low noise levels

Skip if

• You require dual-fan cooling performance
• Your case height is under 148mm
• You prefer a black aesthetic

Verdict: The Thermalright AK120 SE White ARGB suits users building white-themed PCs who need modern socket support. Its quiet operation and specific color make it a solid match for those cases.

Specifications side by side

Frequently asked questions

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