6 Best Alternatives to the Thermalright Royal Knight 120 Dual (2026)

How these alternatives compare

Thermalright Peerless Assassin 120 Dual Fan Cooler

The Thermalright Peerless Assassin 120 SE is slightly wider and deeper than the Royal Knight 120 SE, measuring 5.31 inches wide and 6.18 inches deep. It shares the same six heat pipe and 120mm fan configuration, but its dual-tower design focuses on raw thermal efficiency rather than RAM clearance. You should pick this if you prioritize cooling performance for high-end CPUs over aesthetic lighting or tight memory spacing. It supports the same modern sockets, including AM5 and LGA1851, making it a direct performance-focused alternative for builders who do not need the Royal Knight's specific clearance advantages.

Thermalright Peerless Assassin Dual Tower Air Cooler

This Peerless Assassin variant matches the original in socket compatibility and heat pipe count, offering six 120mm fans for reliable heat dissipation. It shares the dual-tower architecture but differs in physical dimensions, standing 4.92 inches high and 5.31 inches wide. You might choose this model if you need robust cooling for AM5 or LGA1700 platforms without requiring the Royal Knight's specialized crooked neck design. It sacrifices some RAM clearance for a more standard tower profile, making it better suited for users who prioritize consistent thermal performance and broad socket support over unique structural features or extreme memory compatibility.

Thermalright Peerless Assassin 120 SE Dual Tower

The Peerless Assassin 120 SE 1700-d6 offers six heat pipes and 120mm fans, similar to the Royal Knight 120 SE, but with a different dimensional profile. It measures 5.31 inches wide and 6.1 inches tall, providing a standard dual-tower footprint. You should consider this alternative if you want reliable cooling for modern sockets like AM4, AM5, and LGA1851 without focusing on RGB lighting. It gives up the Royal Knight's specific RAM clearance benefits in favor of a proven, efficient design. This cooler is ideal for builders who value raw thermal efficiency and broad compatibility over specialized structural features or aesthetic customization options.

Cooler Master Hyper 620S Dual Tower Cooler

The Cooler Master Hyper 620S stands 6.1 inches tall, matching the Royal Knight 120 SE's height, but features a dual-tower design with ARGB lighting. It uses six heat pipes and 120mm fans, supporting AM4, AM5, LGA1851, and LGA1200 sockets. You might pick this if you want visual customization alongside strong cooling for high-end CPUs in mid-tower cases. It sacrifices some RAM clearance for aesthetic appeal and includes ARGB features. This cooler is best for users who prioritize lighting effects and brand recognition while maintaining comparable thermal performance and socket compatibility to the Royal Knight, provided they have sufficient case space for its dimensions.

Thermalright Peerless Assassin 120 Mini Black

The Thermalright Peerless Assassin 120 Mini is significantly more compact, measuring 4.33 inches deep and 4.92 inches high, compared to the Royal Knight 120 SE's larger footprint. It retains six heat pipes and 120mm fans, supporting AM4, AM5, LGA1851, and other sockets. You should choose this if you are building in a small case where the Royal Knight's 6.1-inch height and depth would not fit. It gives up some cooling capacity for a lightweight, space-saving design. This cooler is ideal for users who prioritize compactness and modern socket support over the higher thermal performance and RAM clearance offered by the larger dual-tower Royal Knight design.

upHere Dual Tower 120mm CPU Cooler

The upHere Dual Tower 120mm CPU Cooler offers six heat pipes and 120mm fans, supporting AM4, AM5, LGA1851, and LGA1150 sockets. It shares the dual-tower architecture with the Royal Knight 120 SE but focuses on quiet operation. You might pick this if you prioritize low noise levels over high fan speeds or aesthetic lighting. It provides solid thermal performance for standard builds on compatible platforms. This cooler is best for users who want a practical, quiet cooling solution for AM5 and AM4 systems, sacrificing the Royal Knight's specialized RAM clearance and specific structural design for a simpler, noise-focused approach to air cooling.

Quick picks

Our 7 picks

1 Best overall

Thermalright Royal Knight 120 Dual Tower Cooler

Best for: High RAM clearance and dual-tower cooling

Socket Compatibility

AM4/AM5, LGA1851/1700/115X/1200

Cooler Height

155mm

Heat Pipes

6

Tower Design

Dual Towers

Fan Size

120mm

Fan Speed

1800RPM

View on Amazon: Thermalright Royal Knight 120 Dual Tower Cooler Affiliate link

The Thermalright Royal Knight 120 SE features a twin-tower design with six 6mm pure copper heat pipes. It uses AGHP 5.0 technology to manage heat efficiently. The cooler includes dual 120mm fans with a maximum speed of 1800RPM. Its crooked neck design avoids blocking RAM and graphics cards. This air cooler suits users needing strong cooling performance without interference from tall memory modules.

Pros

• Six 6mm pure copper heat pipes with AGHP 5.0 technology
• Twin-tower heatsink with aluminum fins for maximum surface area
• Crooked neck design prevents interference with RAM and GPU
• Includes Y-adapter cable for easy fan connection

Cons

• Maximum fan speed is limited to 1800RPM
• Cooler height reaches 155mm, which may restrict case compatibility
• Fans use S-FDB bearings rather than higher-end variants

Good fit if

• You have tall RAM sticks and need clearance
• You want a dual-tower cooler for better heat dissipation
• You use AM4, AM5, or Intel LGA sockets

Skip if

• You require fan speeds above 1800RPM
• Your PC case has a CPU cooler height limit under 155mm
• You prefer single-tower designs for compact builds

Verdict: The Thermalright Royal Knight 120 SE Dual Tower Cooler is a practical choice for users with tall RAM who need reliable heat dissipation. Its twin-tower structure and six heat pipes deliver consistent performance for standard desktop tasks.

2 Also great

Thermalright Peerless Assassin 120 Dual Fan Cooler

Best for: high-performance air cooling

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 Affiliate link

The Peerless Assassin 120 SE uses a double-tower design with six 6mm heat pipes and AGHP technology to manage heat efficiently. It includes two 120mm PWM fans running at 1550 RPM, delivering up to 66.17 CFM of airflow while staying under 25.6 dB. This cooler fits Intel LGA 1150-1200/2066/1851 and AMD AM4/AM5 sockets. It suits users seeking strong cooling performance without excessive height or noise.

Pros

• Double tower heatsink with six pure copper heat pipes
• AGHP technology prevents heat pipe sag in vertical orientation
• Dual 120mm PWM fans provide 66.17 CFM airflow
• Low noise level of 25.6 dB at maximum speed
• Supports latest Intel LGA 1851 and AMD AM5 sockets

Cons

• 157mm height may not fit in smaller cases
• No RGB lighting included in the base model
• Fans are not individually addressable

Good fit if

• You need a high-performance air cooler for modern sockets
• You prefer silent operation under load
• You have a mid-tower case with 160mm clearance

Skip if

• You are building in a compact ITX case
• You require RGB lighting for your build
• You need a cooler taller than 157mm

Verdict: Thermalright Peerless Assassin 120 SE delivers reliable cooling for high-end CPUs through its six heat pipes and efficient double-tower design. It is ideal for builders who prioritize thermal performance and low noise over aesthetic features.

3 Also great

Thermalright Peerless Assassin Dual Tower Air Cooler

Best for: AM5 and LGA1700 cooling performance

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 Affiliate link

The Thermalright PA120 SE is a dual-tower air cooler with a 155 mm height. It uses six 6mm heat pipes with AGHP technology to manage heat. The unit includes two 120mm PWM fans running at 1550 RPM. It supports AM4, AM5, and LGA1700 sockets. You get strong cooling performance in a compact footprint. It suits users who need reliable thermal management without excessive bulk.

Pros

• Six 6mm pure copper heat pipes with AGHP technology
• Dual 120mm PWM fans with 66.17 CFM airflow
• Supports AM4, AM5, LGA1700, and LGA1851 sockets
• Compact 155 mm height fits most cases

Cons

• No ARGB lighting included in the base SE model
• Requires motherboard backplate for AMD installation
• Fan noise up to 25.6 dB under load

Good fit if

• You need strong cooling for AM5 or LGA1700 CPUs
• You have a case with limited cooler height
• You want a reliable dual-tower design without extra costs

Skip if

• You require built-in RGB lighting effects
• You are using an Intel LGA115x socket
• You prefer single-tower compact designs

Verdict: The Thermalright PA120 SE Dual Tower Air Cooler delivers efficient heat dissipation for modern sockets. It fits users who prioritize cooling performance and socket compatibility over aesthetic lighting.

4 Best budget

Thermalright Peerless Assassin 120 SE Dual Tower

Best for: Users seeking reliable cooling without RGB lighting

Socket Compatibility

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

Cooler Height

155mm

Heat Pipes

6

Tower Design

Dual-Tower

Fan Size

120mm

Fan Speed

1550 RPM

View on Amazon: Thermalright Peerless Assassin 120 SE Dual Tower Affiliate link

This dual-tower air cooler uses six 6mm heat pipes with AGHP technology to manage heat efficiently. It includes two 120mm PWM fans that reach 1550 RPM for strong airflow. The unit stands 155mm tall and supports modern Intel and AMD sockets. It offers a practical cooling solution for users who need reliable performance without extra features.

Pros

• Six 6mm pure copper heat pipes with AGHP technology
• Dual 120mm PWM fans with 1550 RPM max speed
• Supports AM4, AM5, LGA 1700, and LGA 115x sockets
• Compact 155mm height allows RAM clearance

Cons

• No ARGB lighting or RGB effects included
• Fans are not addressable or customizable
• Basic white or black finish only

Good fit if

• You want a no-nonsense cooler with strong cooling specs
• You need compatibility with both Intel and AMD platforms
• You prefer a budget-friendly option without RGB distractions

Skip if

• You require ARGB lighting or RGB synchronization
• You need a cooler taller than 155mm
• You want a fan with higher than 1550 RPM speed

Verdict: Thermalright Peerless Assassin 120 SE delivers solid cooling performance through its six heat pipes and dual fans. It fits users who prioritize raw thermal efficiency and socket compatibility over visual customization.

5 Best premium

Cooler Master Hyper 620S Dual Tower Cooler

Best for: High-end CPUs in mid-tower cases

Socket Compatibility

AM5, AM4, LGA 1851, LGA 1700, LGA 1200

Cooler Height

154.9mm

Heat Pipes

6

Tower Design

Dual Tower

Fan Size

120mm

Fan Speed

650 to 1,750 RPM

View on Amazon: Cooler Master Hyper 620S Dual Tower Cooler Affiliate link

The Cooler Master Hyper 620S is a dual-tower air cooler with six heat pipes and a copper base. It uses a 120mm PWM fan that adjusts from 650 to 1,750 RPM. The unit reaches 154.9mm in height. It supports AM5, LGA 1851, LGA 1700, and LGA 1200 sockets. You get ARGB lighting and silver nickel-plated fins. This cooler suits users needing strong cooling for high-end processors.

Pros

• Dual tower design doubles surface area for heat dissipation
• Six heat pipes with copper base for AMD R9 and Intel i7
• Dynamic PWM fan adjusts speed from 650 to 1,750 RPM
• ARGB lighting adds visual customization to the build
• Simplified brackets for AM5 and LGA 1851 installation

Cons

• 154.9mm height may not fit in smaller cases
• Single fan limits total airflow compared to dual-fan models
• No mention of integrated lighting controller

Good fit if

• You need a dual-tower cooler for high-end CPUs
• You want ARGB lighting in your build
• You have a case that fits 155mm coolers

Skip if

• You use a small form factor case
• You prefer a single-tower design for lower height
• You need a cooler with two fans included

Verdict: Cooler Master Hyper 620S Dual Tower ARGB provides strong cooling performance for high-end processors. It fits users who need a dual-tower design with ARGB lighting and have the case space for its 154.9mm height.

6 Also great

Thermalright Peerless Assassin 120 Mini Black

Best for: small cases and modern socket compatibility

Cooler Height

135 mm

Heat Pipes

6

Fan Size

120mm

Fan Speed

1500 RPM

Socket Compatibility

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

Color

Black

View on Amazon: Thermalright Peerless Assassin 120 Mini Black Affiliate link

This compact air cooler uses six heat pipes with AGHP technology to manage heat efficiently. It includes a 120mm PWM fan that moves up to 66.87 CFM while staying under 25.6 dB. The unit stands 135 mm tall and weighs just 3.53 ounces. It fits most modern Intel and AMD sockets. You should choose this if you need a smaller footprint without sacrificing core cooling performance.

Pros

• Six 6mm heat pipes with AGHP technology
• 120mm PWM fan with 66.87 CFM airflow
• Low noise level under 25.6 dB
• Supports AM4, AM5, and LGA 1700/1851
• Lightweight at 3.53 ounces

Cons

• Shorter height at 135 mm may limit RAM clearance
• Only includes one 120mm fan
• Aluminum fin material offers less mass than all-copper designs

Good fit if

• You have a small case with height restrictions
• You want a lightweight cooler for easy installation
• You need compatibility with modern LGA 1851 or AM5 sockets

Skip if

• You require dual-fan setups for maximum airflow
• You have tall RAM modules that block short coolers
• You prefer all-copper construction for heat capacity

Verdict: Thermalright Peerless Assassin 120 Mini fits users who need a compact, lightweight cooler that supports modern sockets. It delivers solid airflow in a small package, making it ideal for tight builds.

7

upHere Dual Tower 120mm CPU Cooler

Best for: Quiet cooling on AM5 and AM4 platforms

Heat Pipes

6

Tower Design

Dual-Tower

Fan Size

120mm

Fan Speed

1600 RPM

Socket Compatibility

AM4, AM5, LGA 1851, LGA 1150

Color

Black

View on Amazon: upHere Dual Tower 120mm CPU Cooler Affiliate link

This upHere dual-tower cooler uses six 6mm heat pipes to move heat away from your processor. It includes two 120mm fans that spin at 1600 RPM, delivering 68.2 CFM of airflow with noise under 25.6 dB. It fits AM5, AM4, and Intel LGA sockets. The design allows for easy installation without removing memory modules. It suits users who want reliable cooling for standard desktop builds.

Pros

• Six 6mm heat pipes for efficient heat transfer
• Dual 120mm fans provide 68.2 CFM airflow
• Quiet operation below 25.6 dB at max speed
• Supports AM5, AM4, and Intel LGA sockets

Cons

• Max fan speed is 1600 RPM, lower than many competitors
• No addressable RGB lighting listed in specifications
• Limited to 12V power connectivity

Good fit if

• You need a cooler for AM5 or AM4 processors
• You prefer quiet operation under 26 dB
• You want a dual-tower design without RGB lighting

Skip if

• You require fan speeds above 1600 RPM
• You want addressable RGB lighting effects
• You have a small form factor case with tight RAM clearance

Verdict: The upHere Dual Tower 120mm CPU Cooler offers solid thermal performance for standard builds. It is a practical choice for users prioritizing quiet operation and broad socket compatibility over high fan speeds or lighting.

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