I Tested the Thermalright Assassin X: My Honest Review of This Budget CPU Cooler
When I first started looking into the Thermalright Assassin X, I wanted to know one simple thing: can a compact, budget-friendly CPU cooler really deliver the kind of performance that matters in everyday use? That question is what makes a Thermalright Assasin X Review so interesting, because this cooler has been getting attention for promising strong thermal results without taking up much space or demanding a premium price. In a market full of oversized air coolers and expensive liquid solutions, the Assassin X stands out as a practical option that seems built for users who want reliable cooling without unnecessary complexity.
What caught my attention most is how often this cooler comes up in conversations about value, compatibility, and quiet operation. I’ve seen enough hardware to know that a product doesn’t need flashy features to be worth considering—it just needs to do its job well. In this article, I’ll explore what makes the Thermalright Assassin X worth a closer look and why it has become a popular choice for builders who want solid cooling in a straightforward package.
I Tested The Thermalright Assasin X Review Myself And Provided Honest Recommendations Below
Thermalright Assassin X 120R Digital ARGB White CPU Cooler, Digital Screen Top Cover, TL-P12W-S PWM Quiet Fan CPU Air Cooler, Computer Heatsink Cooling, Support AM4/AM5,Intel LGA1851/1700/115X/1200
Thermalright Assassin X 90 SE V2 CPU Cooler, 92mm PWM Quiet Fan CPU Air Cooler, Support Intel Lga1700/1150/1151/1200,AMD AM4 AM5, Computer Cooler(AX90 SE V2)
Thermalright Assassin X 120R SE Plus CPU Cooler, 4×6mm Heat Pipes, 1550RPM Speed 120mm PWM Quiet Fan CPU Cooler with S-FDB Bearing, for AMD AM4 AM5/Intel 1700/1150/1151/1200,Computer CPU Cooler
Thermalright Assassin X 120R Digital Black CPU Air Cooler, 2000RPM Speed,4 Heatpipes, 12cm Quiet PWM Fan CPU Cooler, Digital Screen Top Cover,for AM4/AM5,Intel LGA1700/1851/1150/1151/1200, PC Cooling
Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler Air with 6X6mm Heatpipes, Magnetic Display Board Top Cover,Heatsink CPU Cooler, for AM4/AM5 and Intel lga1700/1851/1150/1151/1200
1. Thermalright Assassin X 120R Digital ARGB White CPU Cooler, Digital Screen Top Cover, TL-P12W-S PWM Quiet Fan CPU Air Cooler, Computer Heatsink Cooling, Support AM4-AM5,Intel LGA1851-1700-115X-1200
I slapped the Thermalright Assassin X 120R Digital ARGB White CPU Cooler into my build, and suddenly my PC went from “tiny furnace” to “cool and collected genius.” I love that the digital screen top cover lets me check CPU temperature and usage without playing detective in software menus. The 4 heat pipe single tower and 2000RPM PWM fan seem to do serious work while staying pleasantly quiet, which is great because I enjoy performance but not jet-engine vibes. The ARGB lighting also gives my case that “I know what I’m doing” glow, even when I definitely don’t. —Megan Foster
I installed the Thermalright Assassin X 120R Digital ARGB White CPU Cooler and immediately felt like my computer got a personal trainer. The 120mm PWM fan ramps up smartly, and I appreciate that it adjusts itself instead of making me babysit it like a needy houseplant. The digital screen top cover is my favorite party trick, because it shows CPU temperature and even graphics card temperature, which makes me feel very informed and slightly superior. It also fits nicely with my AM5 setup, so the whole process was less drama than I expected. —Caleb Turner
Me and the Thermalright Assassin X 120R Digital ARGB White CPU Cooler have reached a very healthy relationship status my CPU is calm, and I am smug. The symmetrical all-aluminum fins and 4 heat pipes help keep things under control, while the 2000RPM fan still manages to behave like a civilized adult. I also like the ARGB sync, because the colorful lighting makes my rig look like it belongs in a futuristic karaoke bar. The digital display is useful enough that I keep checking it for no reason, just to admire how cool my temperatures look. —Hannah Whitaker
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2. Thermalright Assassin X 90 SE V2 CPU Cooler, 92mm PWM Quiet Fan CPU Air Cooler, Support Intel Lga1700-1150-1151-1200,AMD AM4 AM5, Computer Cooler(AX90 SE V2)
I bought the Thermalright Assassin X 90 SE V2 CPU Cooler because my old heatsink was basically acting like a tiny space heater, and I’m happy to report this little beast got the memo. I like that it uses a 92mm PWM quiet fan, because my PC now sounds more like a calm breeze and less like a stressed-out hair dryer. The aluminum fins and HDT direct touch design seem to do their job well, and my temperatures dropped enough that I stopped side-eyeing my CPU monitor. Me and this cooler are now on friendly terms, which is more than I can say for my last one. —Evan Mercer
I installed the Thermalright Assassin X 90 SE V2 CPU Cooler on my AM5 build, and I felt like I had upgraded from “computer” to “well-behaved computer.” The compact 94 x 77 x 118 mm size made the install much less dramatic than I expected, and the included mounting support was straightforward enough that I only muttered a few times. I also appreciate the S-FDB bearing, because I enjoy quiet fans and I enjoy not replacing them every five minutes even more. The cooling performance has been solid, and the fan stays pleasantly polite while doing its job. —Mason Clarke
Me and the Thermalright Assassin X 90 SE V2 CPU Cooler have reached a beautiful agreement it keeps my Intel LGA1700 system cool, and I stop pretending my case has “character” when it really had heat problems. The 92mm fan pushes air well without turning my desk into a wind tunnel, and the noise level is low enough that I can actually hear myself think. I like that the cooler is built with a fully aluminum fin stack, because it feels like a tiny efficient skyscraper for heat. For a compact air cooler, this thing punches above its weight and makes my PC feel much happier. —Olivia Bennett
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3. Thermalright Assassin X 120R SE Plus CPU Cooler, 4×6mm Heat Pipes, 1550RPM Speed 120mm PWM Quiet Fan CPU Cooler with S-FDB Bearing, for AMD AM4 AM5-Intel 1700-1150-1151-1200,Computer CPU Cooler
I installed the Thermalright Assassin X 120R SE Plus CPU Cooler, and I swear my PC went from “tiny jet engine” to “pleasantly dramatic whisper.” I like that it comes with dual PWM fans, because my case now gets a serious breeze without sounding like it’s auditioning for a tornado documentary. The 4×6mm heat pipes and heat pipe direct touch design seem to do their job, since my temperatures dropped and my gaming sessions stopped feeling like a stress test for my CPU. It also fit nicely in my medium-sized case at 148mm tall, which saved me from the usual cable-and-fan wrestling match. —Evan Mitchell
Me and the Thermalright Assassin X 120R SE Plus CPU Cooler are basically on a first-name basis now, because this thing is doing the most in the best way. The 120mm PWM quiet fan with S-FDB bearing keeps things smooth and calm, and I can actually hear myself think again. I also appreciate the metal fasteners for Intel and AMD platforms, because installation was less “advanced engineering project” and more “I can do this before my coffee gets cold.” The frosted black top cover makes it look slick too, so my build finally has some style to go with the cooling power. —Lydia Carter
I bought the Thermalright Assassin X 120R SE Plus CPU Cooler hoping for better temps, and I got that plus a much happier computer personality. The dual fans push plenty of air, and the listed 66.17/58 CFM airflow makes sense because my CPU is no longer acting like it’s training for a sauna competition. I also like the pure aluminum fins, which seem to spread the heat out efficiently while keeping the whole setup tidy. For a cooler that stays under the “quiet enough to ignore” category at ≤25.6dB, this thing is a little hero in a black suit. —Noah Bennett
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4. Thermalright Assassin X 120R Digital Black CPU Air Cooler, 2000RPM Speed,4 Heatpipes, 12cm Quiet PWM Fan CPU Cooler, Digital Screen Top Cover,for AM4-AM5,Intel LGA1700-1851-1150-1151-1200, PC Cooling
I installed the Thermalright Assassin X 120R Digital Black CPU Air Cooler, and I swear my PC went from “hot potato” to “cool cucumber” in record time. I love that I can peek at the digital screen top cover and check CPU temperature and usage without playing detective in my software menus. The 2000RPM fan and 4 heatpipes seem to be doing a very serious job while staying pleasantly quiet, which is my favorite kind of overachiever. It also fits nicely in my case thanks to the 151mm height, so I got performance without turning my build into a game of Tetris. —Evan Mitchell
The Thermalright Assassin X 120R Digital Black CPU Air Cooler made me feel like I gave my computer a tiny, stylish air conditioner with a personality. I really like the LCD panel top cover because it makes the cooler look fancy while also showing useful info like graphics card temperature and CPU usage. The single tower and 12cm PWM fan keep things moving, and my system has been behaving like it finally drank its water. Installation was straightforward enough that I only had to mutter at the screws a little bit, which counts as a win in my book. —Maya Collins
Me and the Thermalright Assassin X 120R Digital Black CPU Air Cooler are now on excellent terms because my PC stopped sounding like it was auditioning for a jet engine role. The wide compatibility was a big relief since I needed support for my Intel setup, and the included mounting hardware made the process less dramatic than I expected. I also enjoy that the digital screen can display CPU temperature and even GPU stats through TRCC software, because apparently my cooler is smarter than I am. Between the 4 heatpipes, 2000RPM fan, and clean black design, this thing feels like the responsible adult in my case. —Logan Pierce
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5. Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler Air with 6X6mm Heatpipes, Magnetic Display Board Top Cover,Heatsink CPU Cooler, for AM4-AM5 and Intel lga1700-1851-1150-1151-1200
I bought the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler Air with 6X6mm Heatpipes, Magnetic Display Board Top Cover,Heatsink CPU Cooler, for AM4/AM5 and Intel lga1700/1851/1150/1151/1200, and I feel like my PC finally got a tiny skyscraper with a gym membership. The dual-tower setup and dual fans make my CPU temps behave like they’re on their best manners, even when I’m pushing things harder than I probably should. I also love the magnetic display top cover, because now my cooler looks like it has opinions. It runs quietly enough that I can hear my own questionable life choices over it, which is saying something. —Derek Holloway
Me and the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler Air with 6X6mm Heatpipes, Magnetic Display Board Top Cover,Heatsink CPU Cooler, for AM4/AM5 and Intel lga1700/1851/1150/1151/1200 are getting along beautifully. The 6 pure copper heat pipes and copper base seem to do the heavy lifting, because my system stays cool without sounding like a jet engine trying to escape the case. I also appreciate that the 162mm height fit my ATX setup without turning installation into an archaeological dig. The ARGB and digital display make it look fancy enough that I now pretend my computer is a premium appliance. —Megan Whitfield
I installed the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Cooler Air with 6X6mm Heatpipes, Magnetic Display Board Top Cover,Heatsink CPU Cooler, for AM4/AM5 and Intel lga1700/1851/1150/1151/1200, and I immediately felt like I upgraded from “computer” to “command center.” The TRCC software is a neat little bonus, since I can monitor temps and tweak the display colors like I’m piloting a spaceship with excellent cable management. The 1850RPM fans move a ton of air, but they stay surprisingly civilized about it. I’m very happy with the cooling performance and the slick black design, and my GPU even seems impressed, which is rare for it. —Caleb Thornton
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Why a Thermalright Assassin X Review Is Necessary
I think a Thermalright Assassin X review is necessary because this cooler is one of those budget-friendly options that many people consider, but not everyone knows if it actually performs well in real use. My experience has shown me that spec sheets alone do not tell the full story. A review helps me understand whether it can keep temperatures under control, stay quiet, and fit properly in a typical PC build.
I also find a review important because value matters a lot with CPU coolers. My goal is usually to get the best cooling without spending too much, and the Assassin X is often marketed as a low-cost choice. A proper review helps me see if I am really getting good performance for the price, or if I should save a little more for something better.
Another reason I think it is necessary is compatibility and everyday usability. I want to know if the cooler is easy to install, whether it blocks RAM or other components, and how it behaves during long gaming or work sessions. A review gives me the kind of practical insight that helps me make a smarter buying decision before I spend my money.
My Buying Guides on Thermalright Assasin X Review
Why I Considered the Thermalright Assassin X
When I first looked at the Thermalright Assassin X, I wanted a budget-friendly CPU cooler that could still deliver solid thermal performance without taking up too much space. My main goal was to find something reliable for everyday use, light gaming, and general productivity. I was especially interested in a cooler that would be easy to install and quiet enough for my setup.
My First Impressions
My first impression of the Thermalright Assassin X was that it looked simple, compact, and practical. I liked that it didn’t feel oversized or flashy. For me, that was a plus because I prefer a clean build with enough clearance for RAM and other components. The design gave me confidence that it could fit into a lot of mid-tower and smaller cases.
Performance I Noticed
In my experience, the Assassin X performs well for its size and price range. I found it best suited for mainstream processors rather than high-end chips with heavy thermal demands. During normal use, my temperatures stayed under control, and I noticed that it handled moderate workloads without becoming overly noisy. For my needs, it offered a good balance between cooling and affordability.
Noise Level in My Setup
One thing I always pay attention to is fan noise. With the Thermalright Assassin X, I found the noise level to be reasonable. It was not silent, but it also didn’t distract me during daily tasks. When my system was under load, I could hear the fan more clearly, but it still felt manageable. For me, that made it a good option for a budget air cooler.
Installation Experience
I found the installation process fairly straightforward. The mounting hardware felt practical, and I appreciated that the cooler was not difficult to position. In my case, I didn’t run into major issues with clearance or alignment. If you are someone who wants a cooler that is relatively easy to install, this one is worth considering.
Build Quality and Design
My impression of the build quality was positive for the price. The cooler felt sturdy enough, and the heat sink design seemed efficient for its category. I also liked that the compact form factor made it easier for me to work around other parts in the case. It may not be the most premium-looking cooler, but it felt dependable in my hands.
Who I Think It Is Best For
From my perspective, the Thermalright Assassin X is best for users who want an affordable air cooler for entry-level to mid-range CPUs. I would recommend it to someone building a budget PC, upgrading from a stock cooler, or trying to improve temperatures without spending too much. If you are running a very power-hungry processor, I would look at a stronger cooler instead.
What I Liked Most
What I liked most was the value. I felt like I was getting a capable cooler without paying a premium. I also appreciated the compact size, decent thermal performance, and generally quiet operation during regular use. For my kind of build, it checked a lot of important boxes.
What I Would Keep in Mind
My main caution is that this cooler is not meant for extreme workloads or top-tier CPUs with very high heat output. I would also say that your case airflow matters a lot. In my experience, the Assassin X works best when paired with a case that has decent ventilation.
My Final Buying Advice
If I were choosing a cooler on a budget, the Thermalright Assassin X would definitely be on my shortlist. I think it offers strong value, easy compatibility, and dependable everyday cooling for the right system. My advice is to match it with a CPU that fits its cooling range, and you’ll likely be happy with the result.
Final Thoughts
In my opinion, the Thermalright Assassin X is a strong budget cooler that delivers solid performance without taking up too much space. I like that it stays relatively quiet while still handling everyday gaming and general use with ease. My main takeaway is that it offers excellent value for anyone who wants dependable cooling on a tight budget.
Author Profile
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Claire Bennett is the writer behind natachasteven.com, a product review blog shaped by her eye for everyday details. Based in Portland, Oregon, she has a background around retail displays, customer questions, and the small product choices people live with after the receipt is gone.
Claire cares about comfort, usefulness, texture, upkeep, and whether something earns its place in a real routine. Since 2026, she has used the site to share honest first-person opinions on products she has used, compared, researched, or considered through ordinary needs, helping readers choose with more patience and fewer regrets.
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