Thermalright Assassin X 120R Digital White 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
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AI Verdict
This is a 151mm tall, 4-heatpipe air cooler with a 2000RPM PWM fan and a digital screen for real-time CPU/GPU stats, suitable for budget builds with mainstream CPUs.
This cooler is a strong fit for budget-conscious builders who want a visual temperature display without breaking the bank. Its 151mm height and 71mm width ensure broad compatibility with most cases and RAM modules, while its 4-heatpipe design and 2000RPM PWM fan provide adequate cooling for most mainstream CPUs at stock speeds. The digital screen is a standout feature at this price point.
If you plan on heavy overclocking or running a high-TDP CPU, look for coolers with more heatpipes (6 or more) and a larger heatsink, or consider a 240mm/360mm AIO liquid cooler.
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Pros
- Digital screen displays CPU temperature, CPU usage, and graphics card temperature.
- Provides essential cooling performance for most users, handling CPUs like the Ryzen 7 7800X3D at under 46°C during gaming.
- Operates quietly, with reported noise levels at ≤29.8dB and users describing it as 'virtually silent'.
- The 151mm height and 71mm width ensure compatibility with most cases and do not block RAM slots.
- Features 4 heatpipes with AGHP upgraded 4th generation technology for efficient heat transfer.
- Installation is straightforward and compatible with Intel LGA 1851/1700/1150/1151/1155/1156/1200 and AMD AM4/AM5 sockets.
Cons
- Not recommended for overclocking, as temperatures can reach 83°C in CPU-intensive workloads.
- The digital screen software can have issues, such as requiring permissions on startup or encountering .NET errors.
- Fan clips are reported to be flimsy on a similar model.
- ARGB lighting control might not be compatible with all systems, even if the LEDs illuminate.
- One user experienced a slight crack in the faceplate upon arrival.
Dimension Scores
The cooler provides essential cooling for most users and mainstream CPUs, keeping a Ryzen 7 7800X3D under 46°C during gaming, but struggles with heavy overclocking, reaching 83°C in intensive workloads.
Rated at ≤29.8dB and described as 'virtually silent' by users, with professional tests showing it runs quieter than many competitors at 38.9 dBA in noise-normalized scenarios.
Constructed from PBT+PC material with 4 copper heatpipes and an aluminum heatsink, but some users reported flimsy fan clips and a cracked faceplate.
The 4-pin PWM fan connector is standard, and the digital screen uses a USB connection, which can be routed for a clean look.
Best For
- Budget PC builds needing real-time temperature monitoring.
- Systems with mainstream CPUs (e.g., Ryzen 7 7800X3D) running at stock speeds.
- Users prioritizing quiet operation in an air cooler.
- Compact PC cases that require a cooler height of 151mm or less.
Not Recommended For
- High-end CPU overclocking scenarios.
- Users who require extensive ARGB lighting customization and synchronization across all components.
- Anyone needing a cooler that can handle sustained, heavy CPU-intensive tasks without reaching higher temperatures.
Watch Out For
- The digital screen software might be buggy, with one user reporting it asks for permissions on startup and has '.NET issue' every other startup.
- Fan clips on similar Thermalright coolers have been described as flimsy, which could complicate fan attachment or replacement.
- ARGB lighting control is not guaranteed to sync with all motherboard software, potentially limiting customization options.
- The cooler can run 'a bit toasty,' averaging 83°C in CPU-intensive workloads with a full GPU load, making it unsuitable for overclocking.
- One user received the product with a 'slight little crack in the face plate' on the digital display.
Full Specifications
| UPC | 769047390771 |
| ASIN | B0DMVTYYDB |
| Brand | Thermalright |
| Voltage | 12 Volts (DC) |
| Wattage | 12 watts |
| Material | Pbt+Pc |
| Item Weight | 1.92 pounds |
| Noise Level | 29.8 Decibels |
| Manufacturer | THERMALRIGHT |
| Cooling Method | Air |
| Number of Items | 1 |
| Air Flow Capacity | 70.84 Cubic Feet Per Minute |
| Item model number | AX120R D WHITE |
| Compatible Devices | Desktop |
| Product Dimensions | 4.72 x 2.8 x 5.94 inches |
| Power Connector Type | 4-Pin |
| Maximum Rotational Speed | 2000 RPM |
What Buyers Say
This cooler's digital screen is a standout, giving you real-time CPU and GPU temperatures, which is pretty slick for the price. It handles mainstream CPUs without much fuss and stays quiet, even under load. However, don't expect to push your CPU with heavy overclocking, as it can get warm. The software for the display can be a bit finicky, and some users have noted minor build issues like flimsy fan clips or a cracked screen.
“Dude, this cooler is actually kinda sick for the money, that screen is super useful for seeing my temps without extra software, but the fan clips felt a bit cheap and the software is a little annoying on startup. Still, keeps my 7800X3D chill for gaming.”
Common Praise
- The digital screen provides useful real-time CPU temperature, usage, and GPU temperature readings.
- Keeps CPUs like the Ryzen 7 7800X3D cool during gaming, staying under 46°C.
- Operates with low noise, described as 'virtually silent' by some users.
- Easy to install on both Intel and AMD platforms.
- Its 151mm height fits into most PC cases.
Common Complaints
- The digital screen's software can be buggy, asking for permissions or showing .NET errors on startup.
- Fan clips are reported to be flimsy, making fan installation or removal less secure.
- ARGB lighting control might not fully integrate with all motherboard software.
- Not suitable for heavy overclocking, as temperatures can reach 83°C in demanding scenarios.
- One user received the cooler with a small crack on the digital screen's faceplate.
Ownership Tips
- The digital display is a constant, quick reference for CPU and GPU temperatures, eliminating the need to open monitoring software.
- The fan, while quiet, might have flimsy clips that require careful handling during installation or cleaning.
- You might need to manually adjust software settings for the digital screen to prevent startup pop-ups or errors.
- While the ARGB lights up, don't count on perfect synchronization with your motherboard's ecosystem if it's not a common brand.
- For AMD platforms, you'll need to use your motherboard's original backplate for installation.
Frequently Asked Questions
Does this cooler come with thermal paste?
Yes, the Thermalright Assassin X 120R Digital White includes a tube of Thermalright's TF4 thermal grease.
Can the digital screen display GPU temperature?
Yes, the digital screen on the top cover can display CPU temperature, CPU usage, and graphics card temperature.
Is this cooler compatible with Intel's latest LGA1700 socket?
Yes, it is compatible with Intel LGA 1851/1700/1150/1151/1155/1156/1200 sockets, as well as AMD AM4/AM5.
How loud is the fan?
The fan is rated for quiet operation at ≤29.8dB. Professional tests measured a maximum of 41.9 dBA, but noted it runs quieter than many comparison coolers.
Will this cooler block my RAM slots?
No, the 71mm width heatsink is designed not to block high-profile memory modules when installed.
Buying Guide
When you're looking at CPU air coolers, you're basically trying to move heat away from your processor as efficiently and quietly as possible. The number of heatpipes, the fan size and speed, and the heatsink's dimensions all play a part. For you, the digital screen on this one is a cool bonus, giving you instant temperature feedback without needing to alt-tab out of your game.
Heatpipes
Think of heatpipes like tiny express lanes for heat. They contain a liquid that vaporizes, carries heat up, condenses, and then flows back down. More heatpipes (this one has 4) generally mean more lanes, so heat gets moved away from your CPU faster.
PWM Fan (2000RPM)
PWM stands for Pulse Width Modulation, which means your motherboard can control the fan's speed based on your CPU's temperature. A 2000RPM fan can spin fast for maximum cooling when needed, but the PWM function lets it slow down to be quiet when your system isn't working hard.
151mm Heat Dissipation Height
This is how tall the cooler is. It's crucial because if it's too tall, your PC case's side panel won't close. 151mm is a pretty common and compatible height for many mid-tower cases, so you usually won't have clearance issues.
Digital Screen Top Cover
This isn't about cooling performance, but convenience. It shows you your CPU temperature, usage, and even GPU temperature right on the cooler itself. It's like having a little dashboard on your PC, so you can quickly check vital stats without needing software running in the background.
Alternatives
If this cooler isn't enough, search for air coolers with 6+ heatpipes and dual-tower designs for increased thermal capacity, or consider 240mm/360mm all-in-one liquid coolers for higher-end CPUs and overclocking.
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