6 Best Alternatives to the Thermalright Peerless Assassin 140 SE (2026)
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The Thermalright Peerless Assassin 140 SE delivers solid cooling for mid-tower builds with AM5 or LGA1700 CPUs. You might look for thermalright peerless assassin 140 se alternatives if you need a different color, a smaller footprint, or specific lighting features. This guide compares seven options based on their published specifications. We focus on heat pipe count, fan size, and socket compatibility to help you find a match. Each listed cooler shares core design traits with the original, such as dual-tower structures and six heat pipes. However, dimensions and included components vary. Some models offer white aesthetics for themed builds, while others provide digital displays or ARGB lighting. You should check case clearance, as heights range from 125mm to 162mm. Socket support also differs slightly, though most cover AM5 and LGA1851. We selected these alternatives because their specs overlap with the original, ensuring comparable thermal performance. This list helps you balance height limits, aesthetic preferences, and modern socket support without sacrificing cooling efficiency.
How each alternative compares
Thermalright PA140 White Dual Tower Cooler
The Thermalright PA140 White Dual Tower Cooler matches the original with six heat pipes and dual fans. You gain a white aesthetic that fits themed builds without sacrificing the dual-tower airflow design. The dimensions are nearly identical, ensuring it fits in the same mid-tower cases. You keep the same socket support for AM5 and LGA1700. This option is for you if you want the same cooling performance but need the white color scheme to match your other components.
Thermalright Peerless Assassin 140 White Cooler
This model also offers six heat pipes and a dual-tower design similar to the original. It weighs 3.94 pounds, which is slightly heavier than standard units. The white finish provides a clean look for white-themed builds. You retain full compatibility with modern sockets like AM5 and LGA1851. The airflow performance remains strong for users who prioritize thermal output over RGB lighting. It is a practical choice if you need a white cooler that does not compromise on the heat pipe count or fan setup.
Thermalright Peerless Assassin 140 Black Cooler
The Thermalright PA140 Black Cooler features six heat pipes and a dual-tower structure. It lacks RGB lighting, which keeps the design simple and functional. You get a black finish that suits standard desktop builds. The socket compatibility includes AM5, LGA1851, and LGA1700. This cooler is ideal for users who want reliable cooling without visual distractions. It offers the same thermal potential as the original but in a no-nonsense black package. Choose this if you prefer a minimalist aesthetic with strong airflow capabilities.
Thermalright Peerless Assassin 120 Digital ARGB Cooler
The Thermalright Peerless Assassin 120 Digital ARGB Cooler uses six heat pipes but in a single-tower form factor. It stands 162mm tall, which is taller than the original 158mm design. You get ARGB lighting and a digital display, adding visual flair. The cooler supports modern sockets like AM5 and LGA1851. You sacrifice some height clearance and dual-tower bulk for the digital display feature. This option suits you if you value the novelty of the display and have cases with ample RAM clearance.
Thermalright Peerless Assassin 120 Dual Fan Cooler
The Thermalright Peerless Assassin 120 Dual Fan Cooler uses six heat pipes but with 120mm fans instead of the mixed 120mm and 140mm setup. It is shorter at 4.92 inches in height compared to the original 6.22 inches. You gain better RAM clearance and a smaller footprint. The cooling performance is still strong for modern sockets like LGA1851 and AM5. This is a better fit for standard mid-tower cases where the original might be too tall. You trade the larger fan surface area for improved compatibility with tall RAM sticks.
Thermalright Peerless Assassin Dual Tower Air Cooler
The Thermalright Peerless Assassin Dual Tower Air Cooler features six heat pipes and a dual 120mm fan setup. It is shorter than the original, measuring 4.92 inches in height. The weight is 2 pounds, making it lighter than the 140mm variants. You get reliable thermal performance for mainstream processors. The cooler supports AM5, LGA1851, and LGA1700 sockets. This option is for builders who prioritize cooling capacity in a compact footprint. You sacrifice the extra airflow from the 140mm fan but gain better clearance for RAM and motherboard components.
Quick picks
Our 7 picks
Thermalright Peerless Assassin 140 SE
Best for: Mid-tower cases with height limits
- Socket Compatibility
- AM5, AM4, LGA1851, LGA1700, LGA1200
- Cooler Height
- 158mm
- Heat Pipes
- 6
- Tower Design
- Dual-Tower
- Fan Size
- 120mm, 140mm
- Fan Speed
- 1850 RPM, 1500 RPM
This dual-tower air cooler uses six heat pipes and mixed 120mm and 140mm fans to manage CPU temperatures. It stands 158mm tall, fitting many mid-tower cases. The included PWM fans reach up to 1850 RPM while staying under 29.5 dB. It supports AM5, LGA1851, and LGA1700 sockets. You get a practical cooling solution that balances performance with standard case compatibility.
Pros
- Six electroplated heat pipes for efficient heat transfer
- Dual-tower design with 120mm and 140mm fans
- 158mm height fits most standard computer cases
- Supports AM5, LGA1851, and LGA1700 sockets
Cons
- No RGB lighting or addressable LED features
- Mixed fan sizes may limit aesthetic matching
- No mention of included thermal paste in specs
Good fit if
- You need a cooler under 160mm for your case
- You use AM5 or LGA1700 processors
- You prefer silent operation under 30 dB
Skip if
- You require RGB lighting for your build
- Your case height limit is below 158mm
- You want a single 140mm fan configuration
Verdict: Thermalright Peerless Assassin 140 SE offers solid cooling for mid-tower builds with AM5 or LGA1700 CPUs. It suits users who prioritize height compatibility and quiet operation over visual effects.
Thermalright PA140 White Dual Tower Cooler
Best for: White themed builds needing high airflow
- Cooler Height
- 158 mm
- Heat Pipes
- 6
- Tower Design
- Dual-Tower
- Fan Size
- 120 mm, 140 mm
- Fan Speed
- 1500 RPM
- Socket Compatibility
- AM4, AM5, LGA 1851, LGA 1200, LGA 1150, LGA 1151
This is a white dual-tower air cooler with six heat pipes. It includes a 120mm and a 140mm PWM fan. The maximum air volume reaches 66.17 CFM. Noise stays at or below 25.6 dB. It fits Intel LGA 1700/1851 and AMD AM4/AM5 sockets. You get a Y-type adapter cable for easy fan connection. This model suits builds where a white aesthetic matters alongside performance.
Pros
- Six heat pipes for efficient heat transfer
- Dual tower design with 120mm and 140mm fans
- Maximum airflow of 66.17 CFM
- Low noise output of 25.6 dB or less
- Includes Y-type adapter cable for power
Cons
- No addressable RGB lighting on the fans
- White color limits compatibility with dark builds
- 140mm fan requires additional case clearance
Good fit if
- You want a white CPU cooler for your build
- You need strong cooling for high-end processors
- You have a case that fits a 140mm fan
Skip if
- You prefer a black cooler for your theme
- You want RGB lighting effects on the fans
- Your case cannot fit a 140mm fan
Verdict: Thermalright Peerless Assassin 140 White offers strong cooling with six heat pipes and dual fans. It fits users who need high airflow and a white aesthetic.
Thermalright Peerless Assassin 140 White Cooler
Best for: White-themed builds needing strong airflow
- Socket Compatibility
- LGA1150/1151/1200/1700/1851, AM4/AM5
- Cooler Height
- 158mm
- Heat Pipes
- 6
- Tower Design
- Dual Towers
- Fan Size
- 120mm, 140mm
- Fan Speed
- 1500rpm±10%
View on Amazon: Thermalright Peerless Assassin 140 White Cooler
This is a white twin-tower air cooler with six copper heat pipes. It uses a 140mm fan running at 1500 RPM to move 66.17 CFM of air. The unit stands 158mm tall. It fits Intel LGA 1700 and AMD AM5 sockets. You get dual fans for strong airflow. This cooler suits builds where white aesthetics matter.
Pros
- Dual tower design with six heat pipes
- Includes a 140mm fan for high airflow
- White color matches modern builds
- Supports AM5 and LGA 1700 sockets
Cons
- 158mm height may block tall RAM
- No RGB lighting included
- Fans are not adjustable via software
Good fit if
- You need a white cooler for your build
- You have a mid-tower case with 160mm clearance
- You want strong airflow without RGB
Skip if
- You have a small ITX case
- You need ARGB lighting effects
- You want a low-profile cooler
Verdict: Thermalright PA140 White Dual Tower Cooler offers solid cooling with a clean white look. It fits users who prioritize airflow and aesthetics over lighting features.
Thermalright Peerless Assassin 140 Black Cooler
Best for: Spacious cases with standard CPUs
- Socket Compatibility
- AM5/AM4, LGA 1700/1851/1150/1151/1200
- Cooler Height
- 158mm
- Heat Pipes
- 6
- Tower Design
- Double Towers
- Fan Size
- 120mm, 140mm
- Fan Speed
- 1500RPM
View on Amazon: Thermalright Peerless Assassin 140 Black Cooler
This dual-tower air cooler features six heat pipes and a 158mm height. It uses a 140mm fan running at 1500RPM to move 66.17 CFM of air. The black nano-painted fins and copper base handle heat dissipation. It fits Intel LGA 1700 and AMD AM5 sockets. You should choose it if you need strong cooling for larger cases.
Pros
- Dual-tower design with six heat pipes
- 140mm fan provides 66.17 CFM airflow
- 158mm height fits most large cases
- Compatible with LGA 1700 and AM5
Cons
- 158mm height may block tall RAM
- No RGB lighting on the black model
- Single fan configuration limits airflow options
Good fit if
- You have a mid-tower or full-tower case
- You use an Intel LGA 1700 or AMD AM5 CPU
- You prefer a stealthy black aesthetic
Skip if
- You have a small form-factor case with low clearance
- You need RGB lighting for your build
- You require a single-tower compact cooler
Verdict: Thermalright PA140 Black CPU Cooler is a solid choice for users with spacious cases who want reliable cooling without RGB. It fits well on standard desktop builds.
Thermalright Peerless Assassin 120 Digital ARGB Cooler
Best for: Users wanting digital display and modern socket support
- Socket Compatibility
- AM4/AM5, LGA1700/1851/1150/1151/1200
- Cooler Height
- 162mm
- Heat Pipes
- 6
- Tower Design
- Dual-Tower
- Fan Size
- 120mm
- Fan Speed
- 1850RPM
View on Amazon: Thermalright Peerless Assassin 120 Digital ARGB Cooler
This dual-tower air cooler features six 6mm heat pipes and a pure copper base for efficient heat transfer. It includes a unique magnetic top cover with a digital display and ARGB lighting. The unit supports AMD AM4/AM5 and Intel LGA1700/1851 sockets. With a maximum fan speed of 1850 RPM, it offers strong cooling performance for mainstream processors in compact ATX cases.
Pros
- Six 6mm heat pipes with AGHP technology
- Digital display on magnetic top cover
- ARGB lighting support
- Compatible with AM5 and LGA1851 sockets
Cons
- Single 120mm fan configuration limits total airflow compared to dual-fan 140mm models
- 162mm height may interfere with tall RAM modules
- No app control for the digital display or lighting
Good fit if
- You want a distinctive look with a digital temperature readout
- You are building on a modern AM5 or LGA1851 platform
- You prefer a black aesthetic with ARGB accents
Skip if
- You need the absolute highest cooling performance available
- Your RAM has very tall heat spreaders
- You want a standard dual-fan 140mm cooler design
Verdict: Thermalright Peerless Assassin 120 Digital ARGB Black suits users who value the novelty of a digital display and modern socket support over raw thermal headroom. It is a stylish, functional choice for mid-range builds where case clearance allows for its 162mm height.
Thermalright Peerless Assassin 120 Dual Fan Cooler
Best for: Standard mid-tower cases with RAM clearance
- Socket Compatibility
- AM4/AM5, LGA1700/1200/2011/1851
- Cooler Height
- 157mm
- Heat Pipes
- 6
- Tower Design
- Double tower
- Fan Size
- 120mm
- Fan Speed
- 1550rpm±10%
View on Amazon: Thermalright Peerless Assassin 120 Dual Fan Cooler
This cooler uses a double-tower design with six 6mm heat pipes and two 120mm fans. The fans run at 1550 RPM with a noise level under 25.6 dB. It fits Intel LGA 1851 and AMD AM5 sockets. The 157mm height allows it to clear most RAM modules. It is a solid choice for users who need strong cooling in a standard 120mm fan form factor.
Pros
- Double-tower design for enhanced heat dissipation
- Six 6mm AGHP heat pipes
- Dual 120mm PWM fans included
- Noise level capped at 25.6 dB
Cons
- Single 120mm fan size limits total airflow compared to 140mm models
- 157mm height may not fit in all small form factor cases
- No RGB lighting or software control mentioned in specifications
Good fit if
- You want dual-tower cooling performance in a standard 120mm fan size
- You have a mid-tower case with sufficient RAM clearance
- You prioritize silent operation under 26 dB
Skip if
- You need a cooler taller than 157mm
- You require ARGB lighting effects
- You are building in a case with strict height restrictions under 150mm
Verdict: Thermalright Peerless Assassin 120 Dual Tower delivers reliable cooling for modern sockets like LGA 1851 and AM5. It suits builders who need strong thermal performance without the bulk of a 140mm fan setup.
Thermalright Peerless Assassin Dual Tower Air Cooler
Best for: Standard ATX builds with dual 120mm fans
- Socket Compatibility
- AM4, AM5, LGA1700, LGA1851, LGA1200
- Cooler Height
- 155 mm
- Heat Pipes
- 6
- Tower Design
- Dual-Tower
- Fan Size
- 120 mm
- Fan Speed
- 1550 RPM
View on Amazon: Thermalright Peerless Assassin Dual Tower Air Cooler
The Thermalright PA120 SE uses a dual-tower design with six 6mm heat pipes and AGHP technology to manage heat effectively. It includes two 120mm PWM fans running at 1550 RPM, delivering up to 66.17 CFM of airflow. The cooler stands 155 mm tall and supports major Intel and AMD sockets. It suits users who want strong cooling performance in a compact dual-fan form factor.
Pros
- Dual-tower heatsink with six pure copper heat pipes
- AGHP technology reduces gravity effects on heat pipe efficiency
- Includes two 120mm PWM fans with 66.17 CFM max airflow
- Supports LGA 1700, LGA 1851, AM4, and AM5 sockets
Cons
- 155 mm height may block tall RAM modules
- Fans are non-addressable RGB with no lighting control
- Base weight of 2 pounds adds load to the motherboard
Good fit if
- You need a dual-tower cooler for a mid-size case
- You use an AM5 or LGA 1700 processor
- You prefer high static pressure from dual 120mm fans
Skip if
- You have very tall RAM sticks that exceed clearance limits
- You require a single 140mm fan for lower noise
- You need ARGB lighting synchronization with your system
Verdict: The Thermalright PA120 SE Dual 120mm Air Cooler offers reliable thermal performance for mainstream processors through its efficient dual-tower design and six heat pipes. It is the right choice for builders prioritizing cooling capacity over aesthetic lighting in a compact footprint.
Specifications side by side
| Spec | Thermalright Peerless Assassin 140 SE | Thermalright PA140 White Dual Tower Cooler | Thermalright Peerless Assassin 140 White Cooler | Thermalright Peerless Assassin 140 Black Cooler | Thermalright Peerless Assassin 120 Digital ARGB Cooler | Thermalright Peerless Assassin 120 Dual Fan Cooler | Thermalright Peerless Assassin Dual Tower Air Cooler |
|---|---|---|---|---|---|---|---|
| Socket Compatibility | AM5, AM4, LGA1851, LGA1700, LGA1200 | not specified | LGA1150/1151/1200/1700/1851, AM4/AM5 | AM5/AM4, LGA 1700/1851/1150/1151/1200 | AM4/AM5, LGA1700/1851/1150/1151/1200 | AM4/AM5, LGA1700/1200/2011/1851 | AM4, AM5, LGA1700, LGA1851, LGA1200 |
| Cooler Height | 158mm | 158 mm | 158mm | 158mm | 162mm | 157mm | 155 mm |
| Heat Pipes | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Tower Design | Dual-Tower | Dual-Tower | Dual Towers | Double Towers | Dual-Tower | Double tower | Dual-Tower |
| Fan Size | 120mm, 140mm | 120 mm, 140 mm | 120mm, 140mm | 120mm, 140mm | 120mm | 120mm | 120 mm |
| Fan Speed | 1850 RPM, 1500 RPM | 1500 RPM | 1500rpm±10% | 1500RPM | 1850RPM | 1550rpm±10% | 1550 RPM |
| Lighting | not specified | not specified | not specified | not specified | ARGB | not specified | not specified |
| Color | PA140SE | White | White | Black | Black | PA120 | PA120 SE |
| Dimensions | not specified | 5.51 × 6.18 × 6.22 inches | 5.51 × 6.22 × 6.18 inches | 5.51 × 1.06 × 5.51 inches | 5.43 × 4.92 × 6.38 inches | 6.18 × 5.31 × 4.92 inches | 6.1 × 5.31 × 4.92 inches |
| Weight | not specified | not specified | 3.94 pounds | not specified | 3.53 ounces | 1 pounds | 2 pounds |
| Model | PA140SE-D2 | not specified | PA140 WHITE | PA140 BLACK | PA120 Digital ARGB Black | LM-PA 120 | PA120 SE |
| Size | not specified | not specified | not specified | not specified | not specified | PA120 series | PA120 SE series |
Frequently asked questions
Which PA140 alternative is best for white-themed builds?
The Thermalright PA140 White Dual Tower Cooler is the top choice for white aesthetics. It features six heat pipes and dual fans to maintain high airflow. The white finish suits themed builds without compromising the dual-tower design. Its dimensions are nearly identical to the original, ensuring compatibility with most mid-tower cases.
Does the PA120 Digital ARGB cooler have a display?
Yes, the Thermalright Peerless Assassin 120 Digital ARGB Cooler includes a digital display. It supports modern sockets like AM5 and LGA 1851. The unit features ARGB lighting and six heat pipes. You should verify case clearance, as the height reaches 6.38 inches. It prioritizes visual novelty alongside functional cooling for mid-range builds.
What is the smallest Peerless Assassin option available?
The Thermalright Peerless Assassin 120 Dual Fan Cooler is the most compact option listed. It uses 120mm fans instead of 140mm ones, reducing its footprint. The cooler supports AM5 and LGA 1851 sockets with six heat pipes. Its height is 4.92 inches, making it suitable for standard mid-tower cases with RAM clearance concerns.
Are all these coolers compatible with AM5 sockets?
Yes, all listed alternatives support the AM5 socket. The Thermalright Peerless Assassin 140 SE, PA140 White, and PA120 models all include AM5 in their compatibility lists. This ensures you can use any of these air coolers with modern AMD processors without needing additional mounting hardware or adapters.
Which model is best for spacious ATX cases?
The Thermalright Peerless Assassin 140 Black Cooler is ideal for spacious cases. It offers reliable cooling without RGB lighting, focusing on performance. The unit features six heat pipes and supports multiple sockets including LGA 1700. Its standard black finish fits well in desktop builds where height and width are not restrictive factors.
How many heat pipes do these coolers have?
Every model in this list uses six heat pipes. This includes the 140 SE, PA140 White, PA140 Black, and all PA120 variants. The consistent use of six heat pipes ensures similar thermal transfer capabilities across the different form factors. You get efficient heat dissipation regardless of whether you choose a 120mm or 140mm fan setup.
Is there a black option without RGB lighting?
The Thermalright Peerless Assassin 140 Black Cooler is a strong black option without RGB. It features six heat pipes and a standard black finish. The model is designed for users who want reliable cooling without visual effects. It supports standard desktop builds and fits well in cases where aesthetics are secondary to thermal performance.
Can I use these coolers with LGA 1851?
Yes, all listed coolers support the LGA 1851 socket. The Thermalright Peerless Assassin 140 SE, PA140 White, PA140 Black, and all PA120 models include LGA 1851 in their specifications. You can install any of these air coolers on Intel’s latest processors without compatibility issues, provided your case has sufficient clearance.