Thermalright Peerless Assassin 140
Expert rating8.6 / 10
- Model:
- Thermalright Peerless Assassin 140
- Cooler Type:
- Air
- Tower Type:
- Dual-Tower
- Height:
- 158mm
- Socket Compatibility:
- AMD AM4/AM5
- Fan Count:
- 2
- TDP Rating:
- 245W
- Noise Level:
- 25.6dBA
- RGB Lighting:
- No
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Manufacturer: Thermalright Last updated: September 12, 2026
Thermalright Peerless Assassin 140 (Dual-Tower Air/6 Heatpipes/Dual 140mm PWM Fans/1500RPM/Extreme Value) Review
The Thermalright Peerless Assassin 140 swaps the 120mm fans of the well-known Peerless Assassin 120 SE for a pair of larger 140mm fans on the same six-heatpipe dual-tower platform, pushing TDP capacity higher while keeping Thermalright's now-famous extreme-value pricing.
The Thermalright Peerless Assassin 140 swaps the 120mm fans of the well-known Peerless Assassin 120 SE for a pair of larger 140mm fans on the same six-heatpipe dual-tower platform, pushing TDP capacity higher while keeping Thermalright's now-famous extreme-value pricing.
Thermal Performance
Six nickel-plated heatpipes and larger 140mm fans push the TDP ceiling to roughly 245W, a step up from the 120mm Peerless Assassin variants, while undercutting most flagship dual-tower coolers on price by a wide margin.
Fan Design and Noise
Two 140mm PWM fans running up to 1500 RPM move more air per rotation than the 120mm variant, staying reasonably quiet at typical desktop loads for the price tier.
Comparison to Alternatives
Against the Thermalright Peerless Assassin 120 SE, covered elsewhere on this site, the 140mm variant here handles more TDP thanks to its larger fans, at a small size and price increase. Against the DeepCool AK620, also covered elsewhere on this site, the Peerless Assassin 140 undercuts it on price while delivering comparable or better cooling in most independent benchmarks.
Specifications
Identity
| Brand | Thermalright |
|---|---|
| Series | Thermalright Peerless Assassin 140 |
| Model Number | PA140 |
Design
| Cooler Type | Air, Dual-Tower |
|---|---|
| Tower Type | Dual-Tower |
| Height | 158 mm |
| Socket Compatibility | AMD AM4/AM5, Intel LGA1700/1851 |
Performance
| Fan Count | 2 |
|---|---|
| TDP Rating | 245 W |
| Noise Level | 25.6 dBA |
| RGB Lighting | No |
Thermal capability
| Heatpipe Count | 6 |
|---|
| Fans | 2x TL-C14C PWM, 140mm, 1500RPM |
|---|
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8.6 / 10
One of the best price-to-performance dual-tower coolers available, now with larger fans for extra headroom.
Best for
- Budget-focused buyers who want dual-tower, flagship-adjacent cooling at a fraction of premium prices.
- Builds needing roughly 245W of headroom without spending on a big-name flagship.
- Buyers who specifically want the larger-fan variant of Thermalright's popular Peerless Assassin line.
Not for
- Not for buyers who want brand-name fan reliability data, where Noctua alternatives, covered elsewhere on this site, have a longer track record.
- Not for the smallest cases, given the large dual-140mm-fan footprint.
- Not for buyers who already own the 120mm Peerless Assassin SE, covered elsewhere on this site, since the thermal gain doesn't justify swapping.
FAQs
What are the key specifications of the Thermalright Peerless Assassin 140 (Dual-Tower Air/6 Heatpipes/Dual 140mm PWM Fans/1500RPM/Extreme Value)?
The Thermalright Peerless Assassin 140 (Dual-Tower Air/6 Heatpipes/Dual 140mm PWM Fans/1500RPM/Extreme Value) is a CPU cooler from Thermalright. Key specs: Cooler Type Air, Dual-Tower, Tower Type Dual-Tower, Height 158mm, Socket Compatibility AMD AM4/AM5, Intel LGA1700/1851, Fan Count 2.
Will the Thermalright Peerless Assassin 140 (Dual-Tower Air/6 Heatpipes/Dual 140mm PWM Fans/1500RPM/Extreme Value) work with my current setup?
The Thermalright Peerless Assassin 140 (Dual-Tower Air/6 Heatpipes/Dual 140mm PWM Fans/1500RPM/Extreme Value) lists Socket Compatibility is AMD AM4/AM5, Intel LGA1700/1851. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Thermalright Peerless Assassin 140 (Dual-Tower Air/6 Heatpipes/Dual 140mm PWM Fans/1500RPM/Extreme Value) best suited to?
It suits budget-focused buyers who want dual-tower, flagship-adjacent cooling at a fraction of premium prices., builds needing roughly 245w of headroom without spending on a big-name flagship., buyers who specifically want the larger-fan variant of thermalright's popular peerless assassin line..
What are the drawbacks of the Thermalright Peerless Assassin 140 (Dual-Tower Air/6 Heatpipes/Dual 140mm PWM Fans/1500RPM/Extreme Value)?
It is a poor fit for not for buyers who want brand-name fan reliability data, where noctua alternatives, covered elsewhere on this site, have a longer track record., not for the smallest cases, given the large dual-140mm-fan footprint., not for buyers who already own the 120mm peerless assassin se, covered elsewhere on this site, since the thermal gain doesn't justify swapping..
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