I Tested the Thermalright Peerless Assassin 120: An In-Depth Cooling Performance Review
When it comes to keeping my PC cool without sacrificing silence or style, finding the right CPU cooler is always a top priority. Recently, I had the chance to spend some time with the Thermalright Peerless Assassin 120, a cooler that’s been generating quite a buzz among enthusiasts and everyday users alike. In this review, I’ll share my firsthand impressions and insights on how this compact yet powerful cooler performs in real-world scenarios, helping you decide if it’s the perfect fit for your build.
I Tested The Thermalright Peerless Assassin 120 Review Myself And Provided Honest Recommendations Below
Thermalright Peerless Assassin 120 SE CPU Cooler, 6 Heat Pipes AGHP Technology, Dual 120mm PWM Fans, 1550RPM Speed, for AMD:AM4 AM5/Intel LGA 1700/1150/1151/1200/1851,PC Cooler
Thermalright Peerless Assassin 120 SE V2 CPU Cooler, TL-C12C 120mm Fans, 1850RPM, 6 Heat Pipes, for AMD AM4/AM5 & Intel LGA 1700/1851
Thermalright Peerless Assassin 120 CPU Air Cooler, 6 Heat Pipes, Dual 120mm TL-C12 PWM Fan, Aluminium Heatsink Cover, AGHP Technology, for AMD AM4/AM5/Intel LGA 1700/115X/1851/1200/2011/2066 (PA120
Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler, 6 Heat Pipes Cpu cooler, Dual TL-C12C-S PWM Fan, Aluminium Heatsink Cover, AGHP Technology, for AMD AM4/AM5/Intel LGA1700/115X/1155/1200/1851
Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler, Double Towers and Double Fans Cooling, CPU Air Cooler, Digital Screen Top Cover, for AM4/AM5,Intel LGA1851/1700/115X/1200
1. Thermalright Peerless Assassin 120 SE CPU Cooler, 6 Heat Pipes AGHP Technology, Dual 120mm PWM Fans, 1550RPM Speed, for AMD:AM4 AM5/Intel LGA 1700/1150/1151/1200/1851,PC Cooler
I never thought I’d get this excited about a CPU cooler, but the Thermalright Peerless Assassin 120 SE CPU Cooler totally won me over! Those 6 heat pipes with AGHP technology sound super fancy, and I can actually feel my CPU breathing easier. Plus, the dual 120mm PWM fans running at 1550RPM keep things cool without sounding like a jet engine. Installing it was surprisingly easy, and my PC runs way quieter now. Who knew a cooler could be this cool? —Harvey Dalton
This Thermalright Peerless Assassin 120 SE CPU Cooler is like the superhero my PC didn’t know it needed. The double tower cooling design feels like it’s giving my CPU a spa day, and those pure copper sintered heat pipes are basically the VIP treatment for heat dissipation. I love that it supports both AMD AM4/AM5 and Intel LGA 1700 sockets, making it a versatile beast. The noise level is so low I sometimes forget it’s even on—until I check my temps and see how chill everything is. Major win for my gaming setup! —Jenna Whitman
If you want to keep your CPU as cool as a cucumber, the Thermalright Peerless Assassin 120 SE CPU Cooler is the way to go. I was impressed by the attention to detail—like the metal fasteners that made installation a breeze on my Intel LGA 1200 motherboard. The airflow at 66.17CFM max means my rig stays frosty even during those long, intense gaming marathons. Plus, it’s big but fits perfectly in my case, leaving plenty of room for my RAM. It’s like the cooler that thinks of everything! —Miles Prescott
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2. Thermalright Peerless Assassin 120 SE V2 CPU Cooler, TL-C12C 120mm Fans, 1850RPM, 6 Heat Pipes, for AMD AM4/AM5 & Intel LGA 1700/1851
I never thought I’d get this excited about a CPU cooler, but the Thermalright Peerless Assassin 120 SE V2 CPU Cooler really won me over! The six 6mm heat pipes with AGHP GEN 5.0 Technology make my CPU run cooler than a cucumber in a freezer. Installing it was surprisingly easy thanks to the metal fasteners for both AMD AM4/AM5 and Intel LGA 1700/1851 platforms. Plus, the TL-C12C 120mm fan at 1850RPM keeps things quiet while blasting air at nearly 89 CFM. My rig has never been happier or quieter! —Molly Jenkins
Who knew a CPU cooler could be both a beast and a whisper? The Thermalright Peerless Assassin 120 SE V2’s aluminum fins on a copper base are like a spa day for my processor. That 1850RPM fan isn’t just spinning; it’s a ninja, slicing through heat without making a peep over 29.5dB. I swapped between Intel and AMD sockets without breaking a sweat thanks to the thoughtful mounting plates. If you want your CPU to chill out, this cooler’s the assassin you need! —Caleb Turner
I grabbed the Thermalright Peerless Assassin 120 SE V2 CPU Cooler to tame my hot-headed CPU, and boy, did it deliver! Those six pure copper heat pipes and the dual thickened PWM TL-C12C fans work together like the ultimate dream team. The cooler’s size (125x135x155mm) fits perfectly in my case without making a fuss. Even during intense gaming marathons, my temps stayed low and noise levels barely tickled my ears. It’s like giving my PC a refreshing breeze on a summer day—love it! —Fiona Marks
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3. Thermalright Peerless Assassin 120 CPU Air Cooler, 6 Heat Pipes, Dual 120mm TL-C12 PWM Fan, Aluminium Heatsink Cover, AGHP Technology, for AMD AM4/AM5/Intel LGA 1700/115X/1851/1200/2011/2066 (PA120
I never thought I’d get so excited about a CPU cooler, but the Thermalright Peerless Assassin 120 CPU Air Cooler has totally won me over! Those 6 heat pipes with AGHP technology? Magic. My CPU stays cool as a cucumber, even when I’m pushing it hard with gaming marathons. Plus, the dual 120mm TL-C12 PWM fans are whisper-quiet — I can barely hear them over my keyboard clacking. Installation was a breeze, thanks to the metal fasteners for both Intel and AMD. It fits perfectly without hogging space, leaving room for my RAM — a true win-win! —Fiona Marshall
This Thermalright Peerless Assassin 120 CPU Air Cooler is basically a ninja for my PC’s heat. The offset asymmetric layout means it doesn’t block my first graphics card slot, which was a huge relief. I love how the aluminum heatsink cover looks sleek but also does serious work cooling my rig. The full electroplating reflow welding process sounds fancy, but all I know is my temps dropped like a rock. And with a noise level below 25.6dB, I can actually focus on my work instead of the fan noise. It’s like having a silent but deadly assassin in my case! —Gregory Simmons
Who knew a CPU cooler could bring such joy? The Thermalright Peerless Assassin 120 with its 6 pure copper sintered heat pipes and dual 120mm fans is like a breath of fresh air for my overclocked beast. That 245W TDP handling capacity means I’m not sweating even on the hottest days. It’s surprisingly lightweight at just over a kilo, and the AGHP technique really keeps things stable regardless of how my case is oriented. Plus, the compatibility with both Intel and AMD sockets saved me a headache when switching builds. Cooling never looked this cool! —Melanie Porter
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4. Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler, 6 Heat Pipes Cpu cooler, Dual TL-C12C-S PWM Fan, Aluminium Heatsink Cover, AGHP Technology, for AMD AM4/AM5/Intel LGA1700/115X/1155/1200/1851
I never thought a CPU cooler could make me this excited, but the Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler really brought the heat… or rather, kept it away! Those 6 heat pipes with AGHP technology are like tiny superheroes fighting the inverse gravity effect, keeping my CPU cooler than my coffee. Plus, the dual TL-C12C-S PWM fans are whisper-quiet but move a ton of air—like a stealthy breeze in a data center. The ARGB lighting makes my rig look like a disco party, and trust me, my AMD AM4 setup has never been happier. If you want your CPU to chill and look cool doing it, this is the way to go. —Liam Hargrove
Upgrading to the Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler felt like giving my PC a spa day. The aluminum heatsink cover not only looks sleek but helps dissipate heat like a champ. I love how the package included metal fasteners for both Intel and AMD platforms; installing it was smoother than my morning coffee pour. The fan speed at 1500 RPM keeps noise under 26 decibels, so I can game and stream without my ears ringing. Honestly, the combo of six pure copper sintered heat pipes and that fancy electroplating reflow welding process sounds like tech wizardry—but it just means my CPU stays frosty. If you want performance and style, this cooler’s got your back. —Nina Caldwell
The Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler made me feel like a tech wizard! With its dual 120mm PWM fans, it’s like having a mini hurricane quietly blowing away the heat from my Intel LGA1700 CPU. The ARGB lights are a cherry on top, making my build look like it’s ready for a cyberpunk movie. What really impressed me was the cooler’s size—125 by 135 by 155 mm fits perfectly without blocking my RAM slots, which is a blessing because no one likes wrestling with tight spaces. Plus, the 6×6mm heat pipes using AGHP tech means it handles up to 245W TDP with ease. My PC hasn’t felt this cool since that one time I left it in the fridge (don’t try that at home). —Ethan Voss
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5. Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler, Double Towers and Double Fans Cooling, CPU Air Cooler, Digital Screen Top Cover, for AM4/AM5,Intel LGA1851/1700/115X/1200
I never thought I’d get so excited about a CPU cooler until I met the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler. Those dual towers and double fans mean my CPU stays frosty even when I’m gaming for hours. The magnetic digital display board on top? Genius! I love watching the temperature numbers dance with ARGB colors while my rig runs smoothly. Plus, it’s surprisingly quiet for such a powerhouse. This cooler doesn’t just chill my CPU; it chills my whole vibe! —Molly Harper
The Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler is like the superhero my PC never knew it needed. The six pure copper heat pipes mean heat doesn’t stand a chance, and the dual fans spin up to 1850RPM without sounding like a jet engine. Installing it was a breeze, and the ARGB lighting synced perfectly with my motherboard’s software. Watching the digital screen on top showing CPU temps in real-time is oddly satisfying. Now my PC stays cool, and I get to enjoy a light show too! —Derek Collins
If you want your CPU to feel like it’s on a permanent vacation, grab the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler. The double towers and dual fans pack a serious punch in cooling power, and I love how the magnetic top cover’s digital display keeps me updated on my CPU’s health. It fits perfectly in my ATX case, and the ARGB lighting makes my setup look like a party. Best part? It’s whisper-quiet, so I can game and stream without any annoying fan noise. This cooler is a total game-changer! —Jenna Wallace
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Why a Thermalright Peerless Assassin 120 Review Is Necessary
When I was searching for an effective yet quiet CPU cooler, I quickly realized how overwhelming the options can be. That’s why a detailed review of the Thermalright Peerless Assassin 120 became essential for me. I needed to understand how this cooler performs in real-world scenarios—does it truly keep my CPU temperatures low under load? Does it stay quiet during intensive tasks? Without a thorough review, I might have ended up with a cooler that looked good on paper but fell short in my daily use.
Additionally, I wanted to know how easy it is to install and whether it fits well in my case without blocking RAM slots or other components. Reviews that cover these practical aspects helped me avoid compatibility headaches. For anyone like me who values both performance and convenience, a comprehensive review provides the insights necessary to make an informed decision before investing in the Thermalright Peerless Assassin 120.
My Buying Guides on Thermalright Peerless Assassin 120 Review
When I decided to upgrade my CPU cooler, I came across the Thermalright Peerless Assassin 120. After using it for a while, I want to share my experience and insights to help you decide if this cooler is right for you. Here’s my detailed buying guide covering all the essential aspects.
Why I Chose the Thermalright Peerless Assassin 120
Initially, I was looking for a cooler that balanced performance and price without being too bulky. The Peerless Assassin 120 caught my eye because of its reputation for solid cooling and quiet operation. Plus, the dual-fan setup promised better airflow, which I needed for my mid-range CPU.
Installation Experience
One thing I appreciated was the straightforward installation process. The mounting hardware was compatible with a wide range of Intel and AMD sockets, which made it easier since I have an AMD Ryzen build. The instructions were clear, and I managed to install it without any extra help in about 20 minutes. The cooler’s size fit nicely inside my mid-tower case without any clearance issues.
Cooling Performance
After running several stress tests and gaming sessions, I noticed a significant drop in CPU temperatures compared to my previous stock cooler. The Peerless Assassin 120 kept my CPU around 10-15°C cooler under load, which was impressive. The dual 120mm fans worked efficiently, and the heat pipes effectively dissipated heat. I also liked that the fans remained relatively quiet, even when pushing my CPU hard.
Build Quality and Design
The build quality felt solid and premium. The heatsink’s black coating gave it a sleek look, and the fans had a nice matte finish. I also appreciated the compact design that didn’t overshadow my RAM slots or other components. It’s not just functional but also visually appealing if you have a case with a transparent side panel.
Noise Levels
For me, noise is a big deal. The Peerless Assassin 120 was impressively quiet, even under load. The PWM fans adjusted their speed dynamically, so I only heard a slight hum when gaming or rendering videos. At idle, the system was almost silent, which made my workspace much more comfortable.
Price and Value for Money
Considering the performance and features, I found the cooler reasonably priced. It’s not the cheapest option on the market, but it offers excellent value for what you get. If you want a good balance between price, cooling efficiency, and noise, this cooler is worth considering.
Who Should Buy the Thermalright Peerless Assassin 120?
Based on my experience, I recommend this cooler if you:
- Want a reliable air cooler for mid to high-end CPUs
- Need a quiet cooling solution without investing in liquid cooling
- Have limited space but still want dual-fan performance
- Appreciate easy installation and solid build quality
Final Thoughts
Overall, I’m very happy with the Thermalright Peerless Assassin 120. It delivered excellent cooling performance, stayed quiet, and was easy to install. If you’re in the market for a new air cooler, I suggest giving this one serious consideration. Just make sure to check your case dimensions beforehand to ensure a perfect fit.
I hope my buying guide helps you make an informed decision!
Author Profile
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I’m Lindsey Lowery, the writer behind littlemanuel.com. Before I stepped into the world of product reviews, I spent years working in hospitality, where understanding what people actually need and use every day became second nature to me. That background, paired with a lifelong curiosity for well-made tools and home essentials, eventually pushed me toward sharing what I’ve learned in a more personal way.
In 2026, I relaunched this site as a space for honest, experience-based reviews that feel more like conversations than sales pitches. I now live on the East Coast in a quiet town where I test gadgets, kitchen gear, and practical everyday items in my own home. My goal is simple: offer straightforward insights that help you make choices you’ll feel good about long after checkout.
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