The Thermalright Peerless Assassin 120 SE ARGB White is the best white CPU cooler for most builds: a twin-fan, six-heat-pipe tower with a white finish and addressable lighting that covers current AMD and Intel sockets. Readers with a 360mm radiator mount should look at the Thermalright Frozen Notte 360 White or the ARCTIC Liquid Freezer III Pro 360, and anyone who wants a smaller, quieter tower can drop to the Assassin X 120 SE. A “white” cooler simply means a white heatsink cover, fan frames and often matching lighting, chosen to complement a white case, motherboard and graphics card.
Our Top Picks
Top 3 picks at a glance
Quick List
- ARCTIC Liquid Freezer III Pro 360 A-RGB – best for a 360mm all-in-one with a thick radiator and an extra motherboard-cooling fan (confirm the white finish on the listing)
- Thermalright Peerless Assassin 120 SE ARGB White – best overall air cooler for a white build
- Thermalright Assassin X 120 SE ARGB White – best for a compact single-tower air cooler with lighting
- Thermalright Peerless Assassin 120 Vision MAX ARGB White – best for a showpiece build with a built-in display
- Thermalright Frozen Notte 360 White ARGB V2 – best for a white 360mm liquid cooler with a simple design
- Thermalright Assassin X 120 SE White – best for a no-lighting, low-noise white air cooler
Which One Is Right for You?
| If you… | Choose |
|---|---|
| want strong air cooling and a white look with the least fuss | Peerless Assassin 120 SE ARGB White |
| have a 360mm radiator mount and want liquid cooling in white | Frozen Notte 360 White ARGB V2 |
| want the thickest radiator and extra airflow over the motherboard | ARCTIC Liquid Freezer III Pro 360 A-RGB |
| want a cooler that doubles as a display | Peerless Assassin 120 Vision MAX ARGB White |
| have a smaller case or want a single tower with lighting | Assassin X 120 SE ARGB White |
| do not want RGB at all and prefer a simple white fan | Assassin X 120 SE White |
The choice comes down to two questions: how much space do you have, and how important is lighting? Air coolers are simpler and cannot leak, while 360mm liquid coolers move heat away from the socket more effectively on hot processors. Measure your case before you commit, because tower height and radiator thickness are the common reasons a white cooler does not fit.
All 6 Picks in Detail
1. ARCTIC Liquid Freezer III Pro 360 A-RGB – Best for a Thick-Radiator 360mm All-in-One
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The listing title for this cooler does not state a color, so confirm that you are choosing the white version before you buy; ARCTIC sells the Liquid Freezer III Pro 360 A-RGB in both black and white. It is a 360mm all-in-one liquid cooler with a notably thick radiator and a small fan on the pump block aimed at the voltage regulators around the socket. It suits builders who want strong cooling for a high-core-count processor and have a case with a roomy 360mm top or front mount.
It also helps to think about airflow. A 360mm radiator can mount at the top as exhaust or at the front as intake, and the choice changes how warm the graphics card and memory run. Top exhaust is the common arrangement for a window case, because it lets the radiator fans pull warm air out. Whatever you choose, plan the fan cable runs before you close the case, since this design adds a pump cable on top of the fan and lighting leads.
The trade-off is thickness. Per the maker’s information the radiator is about 38mm thick before fans, which is thicker than many 360mm units, so check that your case has the clearance for the radiator plus 25mm fans and any memory or motherboard parts underneath.
- 360mm all-in-one liquid cooler with A-RGB lighting
- Three 120mm fans, with a pump-mounted fan for motherboard components, per the maker
- Radiator about 38mm thick, aluminum; confirm exact dimensions on the listing
- Supports AMD AM5 and AM4 and Intel LGA1851 and LGA1700 per the maker
- Six-year warranty per the maker; confirm on the product page
Pros:
- Extra fan on the pump keeps nearby power components cooler
- Strong liquid-cooling capacity for demanding processors
Cons:
- Thick radiator limits case compatibility
- White finish must be confirmed because the title does not state it
Compared with the Thermalright Frozen Notte 360 White, it is the more capable and more complex option, while the Notte is thinner and easier to fit.
2. Thermalright Peerless Assassin 120 SE ARGB White – Best Overall White Air Cooler
This is the cooler that most white-build guides end up recommending, and for good reason. A twin-tower heatsink, six heat pipes and two 120mm PWM fans give it the cooling power to handle mid-range and many high-end processors, and the white finish with ARGB lighting matches a white case without needing a separate radiator. It is a straightforward fit for anyone building around a mainstream AM5 or Intel chip who values simplicity over a liquid loop.
Fan placement is flexible. The second fan can sit between the towers or on the rear, and some builders run the pair in push-pull to squeeze out a bit more cooling at the price of extra noise. If you use tall memory, check the gap between the front fan and the first DIMM slot; most builds are fine, but very tall heat spreaders may need the fan moved up a few millimeters.
Because it is a dual tower, it is tall. Thermalright lists the Peerless Assassin 120 SE family at about 155mm in height, so confirm that your case supports at least that much, and check clearance for tall memory modules near the front fan.
- Dual-tower air cooler with six heat pipes and Thermalright’s AGHP technology per the listing
- Two 120mm TL-C12CW-S PWM fans with ARGB lighting
- Roughly 155mm tall per the maker’s family specifications; confirm on the listing
- Supports current AMD and Intel sockets listed by the maker
- White finish with 3-pin 5V ARGB connector
Pros:
- Strong cooling for the size without a pump or liquid
- Two fans and a white finish in a single package
Cons:
- Tall tower needs a roomy case
- Large fan and heatsink can sit close to the first memory slot
It sits above the Assassin X 120 SE because the second tower and fan add cooling headroom at the cost of height.
3. Thermalright Assassin X 120 SE ARGB White – Best Compact Single-Tower with Lighting
The Assassin X 120 SE ARGB White keeps the same design language as its larger sibling but drops to one tower, four heat pipes and one 120mm fan. That makes it shorter, lighter and easier on memory clearance, and it still gives a white build lighting that matches a motherboard’s addressable RGB header. It suits mid-range processors in a mid-size case where the larger Peerless Assassin would feel like overkill.
This model suits compact mid-tower cases and builds with a 65W to 105W processor. Because the tower is narrower than the Peerless Assassin, it leaves more room around the motherboard’s power-delivery heatsink and the top memory slots. That makes installation easier for first-time builders, who sometimes struggle to reach the screws on a dual-tower cooler once the graphics card is in place.
- Single-tower air cooler with four heat pipes per the listing
- One 120mm TL-C12CW-S PWM fan with an S-FDB bearing
- ARGB lighting on a white finish
- Reported around 148mm tall for this family; confirm height on the listing
- Covers AMD AM4 and AM5 and Intel sockets listed by the maker
Pros:
- Smaller footprint fits more cases and leaves more room around memory
- Quiet fan with a long-life bearing
Cons:
- Less cooling headroom than the dual-tower model for hot processors
- Lighting is not needed in a build without a window
Against the same-name model without ARGB, this is the pick if you want the lighting, while the plain version is for a quieter, cleaner look.
4. Thermalright Peerless Assassin 120 Vision MAX ARGB White – Best Showpiece with a Built-in Display
The Vision MAX takes the Peerless Assassin layout and adds a screen to the top of the cooler. The listing describes a 480×854 IPS display, and the maker’s information says it connects through a motherboard USB header. That makes it a feature piece for a window-case build where you want a clock, temperatures or custom images visible. It is aimed at builders who treat the PC as a display and already plan a coordinated white theme.
Plan the extra wiring. Besides the fan and ARGB cables, the display needs an internal USB header, and the maker’s software controls what appears on the screen. Check that your motherboard has a free header and that your operating system is supported. With a window panel and a white theme, the screen can show clocks, temperatures or custom artwork, which is the main reason to pick this model over its plain sibling.
- Twin-tower air cooler with ARGB lighting and an IPS screen, 480×854 per the listing
- Six heat pipes per the maker; confirm on the product page
- Fans rated up to 2150 RPM per the listing
- About 164mm tall per the maker, noticeably taller than the SE model
- Screen connects through an internal USB header; confirm software support for your operating system
Pros:
- Display adds real-time information and personality to the build
- Dual-tower design offers strong cooling
Cons:
- Needs more clearance and a free USB header
- Screen software and fan speed can be extra factors in noise and setup
Choose it over the Peerless Assassin 120 SE only if the screen matters; otherwise the SE gives the same basic cooling with fewer requirements.
5. Thermalright Frozen Notte 360 White ARGB V2 – Best White 360mm Liquid Cooler
The Frozen Notte 360 is Thermalright’s take on a mainstream 360mm all-in-one: a white pump cap, three PWM fans with ARGB, and a standard-thickness radiator. It fits builders who want liquid cooling in white without paying for premium features, and it keeps the visual weight of the cooler out of the middle of the case, which frees space around the memory and the socket. A 360mm radiator needs a case with a compatible top or front mount, so confirm that first.
Hose length and routing deserve attention on a 360mm cooler. The tubes need enough slack to reach the socket from a top or front mount without kinking, and the pump should sit lower than the radiator’s highest point where possible so trapped air stays away from it. Mount the radiator with the fittings at the bottom or side rather than at the top of the loop, which is a common guideline for all-in-one coolers.
- 360mm all-in-one liquid cooler with three 120mm PWM fans and ARGB
- Radiator around 27mm thick per the maker, aluminum; confirm on the product page
- Pump with ARGB cap in white
- Supports AMD AM4 and AM5 and several Intel sockets per the listing
- Five-year warranty per the maker; confirm on the listing
Pros:
- Standard-thickness radiator fits more cases than the thicker ARCTIC
- Pump and radiator keep the area around the socket open
Cons:
- A pump adds a moving part that an air cooler does not have
- Requires a 360mm mount and careful hose routing in a smaller case
It is the simpler alternative to the ARCTIC Liquid Freezer III Pro 360 and a good choice if your case is not very deep.
6. Thermalright Assassin X 120 SE White – Best Plain White Air Cooler Without RGB
Strip the lighting and you have a modest white tower with a single quiet PWM fan. The Assassin X 120 SE White is for builds where the heatsink is meant to blend in, such as a white case with a solid side panel or a quiet office machine. It uses four heat pipes and the S-FDB bearing fan, a pairing known for low noise at moderate speeds, and the shorter tower is easier to fit than the dual-tower coolers.
For a home office or a quiet media machine it is a sensible choice. Without lighting, there is no extra cable, no software and no header to share, so the build is easy to finish. The single fan is replaceable with another 120mm PWM fan if you want to experiment, and the shorter tower leaves more space for memory than the dual-tower models.
- Single-tower air cooler with four heat pipes per the listing
- One 120mm TL-C12CW PWM fan with an S-FDB bearing, no RGB
- White finish
- Reported near 148mm tall for the family; confirm on the listing
- Supports AMD AM4 and AM5 and Intel sockets listed by the maker
Pros:
- Simplest cabling, with no lighting header to connect
- Compact tower is easy to fit and quiet at moderate loads
Cons:
- Not the choice for high-end processors with heavy loads
- No lighting, which matters if the build is meant to show off
It is the quieter, simpler sibling of the Assassin X 120 SE ARGB White.
Specs Compared
| Product | Type | Fans | Heat pipes / radiator | Height or thickness | Lighting |
|---|---|---|---|---|---|
| ARCTIC Liquid Freezer III Pro 360 A-RGB | 360mm AIO | 3 x 120mm plus pump fan; confirm on listing | 360mm radiator | Radiator about 38mm thick; confirm on listing | A-RGB; confirm white finish |
| Thermalright Peerless Assassin 120 SE ARGB White | Dual-tower air | 2 x 120mm PWM | 6 heat pipes | About 155mm; confirm on listing | ARGB |
| Thermalright Assassin X 120 SE ARGB White | Single-tower air | 1 x 120mm PWM | 4 heat pipes | Confirm on listing | ARGB |
| Thermalright Peerless Assassin 120 Vision MAX ARGB White | Dual-tower air with screen | 2 x 120mm, up to 2150 RPM | Confirm on listing | About 164mm per the maker; confirm on listing | ARGB plus IPS display |
| Thermalright Frozen Notte 360 White ARGB V2 | 360mm AIO | 3 x 120mm PWM | 360mm radiator | Radiator about 27mm thick per the maker; confirm on listing | ARGB |
| Thermalright Assassin X 120 SE White | Single-tower air | 1 x 120mm PWM | 4 heat pipes | Confirm on listing | None |
How We Chose These
This list comes from the current catalog set for the topic, not from our own bench. We read each manufacturer’s specification page and the retailer listing, then compared cooler type, fan count, heat-pipe count, height or radiator thickness, socket support and lighting. We gave extra weight to the factors that decide whether a white cooler physically fits and cools well: tower height, radiator thickness, and the number of fans. Where a listing did not state a finish, such as the ARCTIC model’s color, we say so and ask you to confirm it. We did not rank by noise or temperature numbers, since we do not have our own measurements, and we avoided quoting figures we could not trace to a maker.
What to Look For
Case clearance comes first
Every other spec is irrelevant if the cooler does not fit. For air coolers, find your case’s maximum CPU cooler height, usually listed between 150mm and 170mm for mid-towers, and keep at least 5mm of margin. A 155mm tower fits a case rated for 160mm but is a squeeze in one rated for 155mm. Remember the glass side panel adds no extra space. For liquid coolers, check which radiator sizes the case supports and where: top mounts often collide with the memory or motherboard heatsinks if the radiator plus fans is thicker than about 55mm. For the cooler with a 38mm radiator and 25mm fans, you need roughly 63mm of vertical space at the mount.
Air versus liquid in a white build
Air coolers have no pump or tubing, so there is little to fail, and a good dual tower handles most mainstream processors. A 360mm liquid cooler spreads heat across a larger surface, lowers temperatures under sustained loads, and clears the area above the socket, which suits a window case. The downsides are cost, installation effort and a pump with a limited rated life. In a white theme, tubing and pump caps also add visual weight. As a rule of thumb, processors rated at about 65W work well with a single-tower air cooler, 105 to 150W suit a dual tower or 240 to 280mm radiator, and heavy multi-core chips are where a 360mm radiator makes sense.
Lighting standards and safety
Addressable RGB uses a 3-pin 5V header. Older RGB strips use a 4-pin 12V header. Never plug a 5V ARGB cable into a 12V RGB header, because the mismatch can damage the lights. Check your motherboard for a 5V ARGB header, and if you have several lit parts, use an ARGB hub or controller instead of chaining them from one header. Fans and pumps use PWM headers separately from the lighting, so you need both connections. A white cooler without lighting skips this entire step.
Socket support and mounting
Confirm that the cooler lists your socket: AM4 and AM5 for AMD, and LGA1700 or LGA1851 for recent Intel chips. Mounting hardware for older Intel sockets may not be included in the same box. Apply thermal paste in a pea-sized dot or a thin line, tighten the mounting screws evenly in a cross pattern, and avoid over-tightening on LGA1700 sockets, where excessive pressure can flex the processor. A pre-applied pad or tube of paste usually comes with the cooler. Worked example: a white mid-tower with 160mm of cooler clearance, a 120W processor and a plan to add a graphics card suits the 155mm Peerless Assassin, leaving the top radiator mount free for case fans.
Noise, fans and bearings
Fan size, speed range and bearing type determine noise. S-FDB bearings, fluid-dynamic designs, tend to run quietly for longer than sleeve bearings, and PWM control lets the motherboard lower speed at idle. A single 120mm fan on a smaller tower is quiet at moderate loads but needs to ramp up when the processor works hard, while two fans can spread the same airflow at lower speeds. If noise matters, set a custom fan curve in the BIOS so the fans do not spike for short bursts.
Thermal paste, airflow and maintenance
Even a strong cooler underperforms with poor case airflow. Aim for a clear path from front intake fans to rear or top exhaust, and keep the cable bundle tidy so it does not block the heatsink. Dust builds up on fin stacks and radiators, so a quick blast of compressed air every few months keeps temperatures steady. Thermal paste lasts for years in most builds, so you only need to replace it when you remove the cooler. If you ever move the system, secure heavy air towers with the maker’s mounting hardware and consider lying the case down for transport.
Questions
Do white CPU coolers cool as well as black ones?
Yes. The finish is cosmetic, so a white version of a cooler performs the same as the black version of the same design. Compare heat pipes, fans and radiator size instead of color.
Will a 155mm air cooler fit in my case?
Check the case’s maximum CPU cooler height in its specifications and leave a few millimeters of margin. If the case is rated for 160mm or more, a 155mm tower should fit, though tall memory may collide with the front fan on dual-tower models.
Is a 360mm liquid cooler better than a big air cooler?
Under sustained heavy loads a 360mm liquid cooler usually runs cooler, but a good dual-tower air cooler is close for many mainstream processors. Air is simpler and has fewer failure points, so choose liquid only if you need the extra capacity or want the clean look.
Do I need a motherboard with an ARGB header?
For the lit models, yes, a 5V 3-pin ARGB header is needed for full lighting control. Without one, the lights may not work or may need a separate controller. The unlit white Assassin avoids this requirement.
Is the white finish durable?
Coatings can pick up fingerprints during installation, so handle the cooler with clean hands and wipe the fins gently with a dry microfiber cloth. Avoid solvents, which can damage the coating.
Can I reuse the cooler on a new motherboard?
Often yes, if the new socket is listed as supported and the mounting hardware is included. Check the maker’s socket list, because upgrades from AM4 to AM5 or between Intel generations can require different brackets.
Update History
- October 20, 2026 – Initial publication; product set drawn from current catalog listings.
- Check the product page for current specifications and availability before buying.
Sources
- Manufacturer product and specification pages for Thermalright and ARCTIC
- Retailer listing titles and specification fields
- Thermalright and ARCTIC socket-support and mounting information for the listed models
