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The CPU air cooler Thermalright Peerless Assassin 120 CPU Air Cooler is engineered to deliver strong heat dissipation while keeping noise low. Quiet operation and a compact footprint let builders run sustained workloads without compromising case layout. Will broad socket support and installation flexibility match what your next build needs?
⚡ At a Glance
- • Cooling Performance: Aluminium double-tower heatsink paired with six sintered copper heat pipes moves heat away efficiently
- • Best for: Builders seeking quiet, effective air cooling for gaming or productivity rigs
- • Not ideal for: Compact small-form-factor cases with very tight height or clearance limits
Aluminium double-tower heatsink with six 6mm sintered copper heat pipes and dual 120mm PWM fans. Offset asymmetric layout and supplied mounting hardware support multiple Intel and AMD sockets.
Lower CPU temperatures - thanks to AGHP 6×6mm sintered heat pipes
AGHP technique uses six 6mm sintered copper heat pipes with full electroplating reflow welding, increasing the effective heat dissipation area to 9600cm². The approach reduces the inverse gravity effect, keeping heat moving efficiently in both vertical and horizontal orientations.
Faster heat transfer keeps core temperatures more stable under sustained loads, helping maintain boost clocks and reducing thermal throttling risk.
Sustained low noise - with dual 120mm TL-C12 PWM fans
Two TL-C12 fans run at 1500rpm ±10% via 4-pin PWM control, producing up to 66.17 CFM of airflow while staying at or below 25.6 dB(A) noise. PWM allows motherboard control of fan curves for load-responsive cooling.
High airflow at modest RPMs allows effective cooling without making the system intrusive during gaming or heavy tasks.
Flexible installation - with offset asymmetric layout and broad socket support
Compact dimensions of 125 × 135 × 157 mm and an offset asymmetric layout leave room for memory modules and free the first PCIe slot. Mounting plates and metal fasteners are supplied for a wide range of Intel and AMD sockets.
Simple fitment across many platforms, including Intel and AM4/AM5, and clearance for taller RAM modules simplifies building or upgrading a system.
✨ The 4 Key Reasons for Thermalright Peerless Assassin 120 CPU Air Cooler
- AGHP sintered copper heat pipes - Speeds up heat migration, keeping core temps lower under extended load
- Dual TL-C12 120mm PWM fans - High airflow at modest RPM, maintaining quiet cooling performance
- Full electroplating reflow welding - Improves thermal contact and long-term reliability under heavy duty
- Memory clearance-friendly offset layout - Leaves space for tall RAM and first PCIe slot access
📋 Technical Details at a Glance
- Category: CPU Cooler
- Model: Thermalright PA120
- Heatsink material: Aluminium
- Heat pipes: 6×6mm sintered copper heat pipes
- Base material: Pure copper base
❓ Frequently Asked Questions
Q: Is the cooler compatible with AM5 sockets?
A: Yes, compatibility includes AMD AM4 and AM5, and the package supplies corresponding mounting plates or fastener parts for different CPU platforms.
Q: Will the cooler clear tall RAM modules?
A: Yes, the offset asymmetric layout is designed to leave room for memory chips, helping to avoid interference with tall RAM modules.
Q: How loud are the fans under load?
A: TL-C12 fans run at around 1500 rpm ±10% and are specified at noise levels of up to 25.6 dB(A), with 4-pin PWM control allowing quieter operation through manual or motherboard fan curves.
🏆 Our Verdict
Perfect for builders and enthusiasts who want dependable, quiet air cooling for gaming and productivity systems. AGHP-enhanced heat pipes, a large aluminium heatsink and dual PWM fans combine to deliver consistent thermal control with sensible noise levels. While upfront cost should be considered, robust construction and broad compatibility make for dependable long-term value.
