















❄️ Stay Cool, Stay Ahead — Because Your CPU Deserves the Best
The Thermalright Peerless Assassin 120 is a high-performance CPU air cooler featuring 6 pure copper sintered heatpipes with advanced AGHP technology, dual 120mm PWM fans delivering up to 66.17 CFM airflow at ultra-quiet noise levels (≤25.6 dB), and broad compatibility with Intel and AMD sockets. Its compact double-tower design ensures efficient cooling without sacrificing RAM clearance, making it an ideal choice for professional-grade desktop builds seeking reliable thermal management and silent operation.






| ASIN | B08S77DVDS |
| Air Flow Capacity | 66.17 Cubic Feet Per Minute |
| Best Sellers Rank | #793 in Computer CPU Cooling Fans |
| Brand | Thermalright |
| Compatible Devices | Desktop |
| Cooling Method | Air |
| Date First Available | November 2, 2020 |
| Item Weight | 1 pounds |
| Item model number | LM-PA 120 |
| Manufacturer | Thermalright |
| Material | Aluminum |
| Maximum Rotational Speed | 1550 RPM |
| Noise Level | 25.6 Decibels |
| Number of Items | 1 |
| Power Connector Type | 4-Pin |
| Product Dimensions | 4.92"L x 5.31"W x 6.18"H |
| UPC | 798789214939 |
| Voltage | 12 Volts (DC) |
| Wattage | 4.8 watts |
E**.
Great cooler, performs how you'd expect!
It cools amazingly, it's easy to install and remove for maintenance and cleaning, and honestly, it looks great too!
D**L
Really impressed at the value you get for the cost. Looks good too
I didn't have too much trouble installing this cooler. The instructions were pretty clear, despite not using many words to describe each step. It's a little meticulous but nothing out of the realm of expectations. I am using this on an i5-12600K overclocked to 4K. At idle its about 30C and when using the Passmark burn test it maxed out at 68C. Never felt hot to the touch. The fans are held on by clips so you can arrange them however you want (both outward, both same direction, etc) The order I chose may cool one side more than the other, but I'm not concerned with minor variance between the two. Obviously you cannot attach a fan in the middle until you screw it onto the board. Order of operations matters. Shown here in a Jonsbo Z20 mATX case.
P**R
May well be the best value CPU cooler
I have an i7 13700K cpu, which is known for hot running, and was using a NZXT T120 cpu cooler. The NZXT T120 was quite decent, but temperature could reach the 100 C max under stress. It should be perfectly fine, but I do want more margin. This Thermalright is so inexpensive that I have to give a try, especially given the many positive reviews. BTW, I had considered AIO, but the additional complexity and potential for failure made me dropped the idea. It arrived promptly. It is massive compared to the NZXT, which is not small already. I spent quite a bit of time to understand the installation process. It was a good thing I did that. The installation is not complicated, but the planning helped to speed up the process and eliminated many potential mistakes. It only took me may be 10 minutes from removing the old cooler to finishing up the installation of the new cooler. Now the performance. Idle temperature is just a couple degrees above ambient. Max temperature barely reached above 90 degrees under synthetic stress test. 80 degree was about the max under normal stress, which is photo editing for my case. In terms of noise, it is quite quiet imo. It seems to live up to expectations. Given the price, it is highly recommended.
B**N
Excellent cooler for my 5900X
Coming from an I5 9600k to a 5900X, I can say that this CPU heats MUCH more than my 9600K even when OC'd to 5ghz on all cores. Piece of advice, coax the entire cpu with grease before putting this bad boy on. Don't do the droplet method - it's outdated and ineffective for these new CPUs. Here's my temp experience so far - 5900X with PBO - Stock Idle - 35c Gaming - 55c to 66c pending on game This may seem like a lot of difference and it is, but the temps are constant and not fluctuating throughout the same game. Some games require less power, others more. Cinebench 23 - 75c 5900X OC'd to 4.6 GHZ All 12 Cores - Idle - about 40 to 42 C Gaming - between 62c and 70C Cinebench 23 - 79c to 81c For the money, this cooler is kick butt. The only complaint is that the fans are a tad on the whining side - but after adjusting them a bit, they're much better. Fan Curve is set to an 50% at idle temps and upwards of 90% once temps hit the 70C range. Overall - I'm loving this cooler. It does what I need it to do. For the record - I can't stand my CPU hitting 70s and higher, so I keep my 5900x at stock settings (roughly 7 to 10 percent decrease over the oc setting, but I'm okay with that since it's roughly a 20% decrease in temps too. For under $40, this cooler is astoundingly good. Get it!
M**9
My Go-To Air Cooler
This is a very well made CPU air cooler with good performance and dual 120mm PWM fans. I use it on nearly all of my 12th and 13th gen Intel builds as it is a great value. OC headroom is fairly non-existent in 12-14th gen Intel cpus, so I mainly use this as a means of keeping the cpu quiet at stock speeds. I typically like to keep the cpu under 70C under full load, and this amazingly keeps temps under that threshold. I use MX-4 thermal paste with this cooler.
A**T
Good cooler, ok fans, bad paste
The cooler was good, I used it on my 5600x which is overkill I know. The mounting system came with one backplate for Intel chips, for AMD you're asked to use the stock plate. If you don't have one, you're out of luck. It was easy to get everything in. The heatsink is offset a bit, so you can mount it closer or further to you GPU. The thermal paste included was really stiff and there were a tiny amount, barely enough to cover the CPU with a thin coat. I'll be exchanging that with some better ones. I thought the fans looked cheap and felt very light, but they were completely silent. I was originally going to replace them with a couple of Noctua I had laying around, but there was no need at the moment. The heat sink help me over locked my chip to 4.65 Ghz where the stock cooler stopped at 4.4. I read that the maximum for most people is 4.7, may be I can reach that with better paste. I thought for the price, it's a steal. BYOPaste
W**M
Good Value Cooler
The standout feature of this product is the price to performance ratio. The cooler is large and your case needs to be a certain size in order to fit properly. It has a strong cooling capacity for an air cooler. The cooler is not overly loud and runs at a respectable speed.
G**L
One of the best-performing CPU air coolers, until it gets too hot.
Every cooler has a thermal limit after which it can do no more or it "crashes". The PA120, as it's often called, performs better than most other air coolers that I'm aware of, and better even than some water coolers. Various testers have ranked it that high for good reason - it is very efficient at dissipating heat. This cooler, along with the PS120, the FS140 and the FC140 are all highly rated in a galaxy of TR coolers, many of which are also really good. If you need to spend a little and you don't have one of the hottest CPUs on the market, get this cooler in whichever variation you like, although you should note that the "mini" version is a lesser version. Highly recommended.
C**N
Tenia instalado un Cooler Master 212 Evo con mi Ryzen 5600x, en comparacion este disipador me bajo las temperaturas unos 10 grados, de verdad es muy bueno, se nota bien construido y de calidad, puedo afirmar que el Cooler Master 212 Evo no se ve tan de buena calidad como este que costo casi lo mismo. Este tiene una base de niquel completamente pulida, por lo que el contacto directo con el CPU es mejor. Corriendo mi Ryzen 5600X con OC en todos los cores a 4.5ghz no pasa de 70 grados haciendo test de Cinebench, en juegos no pasa de 60 grados. Estoy muy conforme con la compra. Los unicos contras son los siguientes: - Los ventiladores son algo ruidosos pero no tanto, comparados con el que venia con el 212 Evo creo que son casi igual de ruidosos en carga alta - Es un poco dificil de instalar, SE NECESITA LA PLACA METALICA DE AMD de Stock (la placa que va a tras de la Motherboard) lo bueno que la guardé sino no hubiera podido instalarlo asi que tengan esto en cuenta en mi opinion deberia traer una incluida - Los alambres que sostienen al ventilador son algo dificiles de poner, hubiera preferido que vinieran integrados a los ventiladores A pesar de los detalles lo recomiendo mucho y le doy 5 estrellas, por el precio creo que no hay una mejor opcion que este, ademas puedes poner mejores ventiladores despues pero me quedo con los que trae por ahora que no estan nada mal, me salio en 810MXN con un cupon de descuento asi que aprovechen!
M**R
Der Kühler macht insgesamt einen soliden Eindruck. Er erfüllt seinen Zweck und sorgt für gute Kühlleistung bei moderaten Temperaturen. Die Installation war unkompliziert, und die beiden Lüfter arbeiten leise. Es gibt keine Überraschungen, das Produkt tut einfach, was es soll – die CPU kühlt zuverlässig. Insgesamt eine gute Wahl für einen fairen Preis.
W**W
Excellent! Cools an AMD 5800x CPU very well, keeping it at 70C when running Cinebench, so all cores fully loaded. Impressive considering I upgraded from a bequiet Pure Rock 2 (which was a toasty 80C). Typical usage doesn't go above 60C. Installation was easy, and mounting kits provided for both Intel & AMD. I don't doubt the reviews that says it matches the Noctua D15s at about half the price
J**E
Bueno bonito y barato enfría super bien un Xeon 135w. Puede mejorar un poquito la calidad del conector "Y", se siente un poquito de baja calidad. Lo malo la instalación es un poco compleja por la posición de los tornillos que aseguran el disipador al socket
K**N
worth it when its 40$ CAD
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