Key takeaways
- Nine AM4 CPU coolers compared from their listings: Thermalright air towers, be quiet! Pure Rock Pro 3, the Wraith Stealth and ARCTIC and Aqua Elite AIOs.
The strongest AM4 cooler picks in this list are the dual-tower air coolers: the Thermalright Peerless Assassin 120 SE and the be quiet! Pure Rock Pro 3 handle most gaming and productivity Ryzen chips, while the ARCTIC and Thermalright liquid units are for builders with room for a radiator. The AMD Wraith Stealth is the cheapest and slimmest, but it is also a boxed-class cooler. Because AM4 is an older socket, check each title for AM4 by name before you order. Two of the nine are near-duplicates of another listing (the ARGB version of the Peerless Assassin SE and the non-RGB Liquid Freezer III Pro 360), and we say so in the entries below instead of counting them as separate designs.
The nine at a glance
Our top picks
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- Thermalright Peerless Assassin 120 SE – best value dual-tower
- Thermalright Peerless Assassin 120 SE ARGB – same design with lighting
- Thermalright Assassin X120 Refined SE – best budget single tower
- Thermalright Peerless Assassin 120 Vision MAX ARGB – best for a display on the cooler
- be quiet! Pure Rock Pro 3 Black – best for a quiet, RAM-friendly tower
- AMD Wraith Stealth – best low-cost replacement for a boxed cooler
- ARCTIC Liquid Freezer III Pro 360 A-RGB – best 360mm AIO with lighting
- ARCTIC Liquid Freezer III Pro 360 – same AIO without RGB
- Thermalright Aqua Elite 240 V3 – best 240mm AIO for a tighter case
Comparison table
| Model | Type | Key specs as stated in the title | Best for |
|---|---|---|---|
| Peerless Assassin 120 SE | Dual-tower air | 6 heat pipes, dual 120mm PWM fans, 1550RPM, AM4/AM5 | Value |
| Peerless Assassin 120 SE ARGB | Dual-tower air | 6 heat pipes, dual TL-C12C-S PWM fans, ARGB | Lighting |
| Assassin X120 Refined SE | Single-tower air | 4 heat pipes, TL-C12C PWM fan, AM4/AM5 | Budget |
| Peerless Assassin 120 Vision MAX | Dual-tower air | 2150RPM, 5-inch 480×854 IPS screen, ARGB | Display |
| be quiet! Pure Rock Pro 3 Black | Dual-tower air | 250W TDP, 2 PWM 120mm fans, 6 heatpipes | Quiet |
| AMD Wraith Stealth | Slim stock air | AM4, 4-pin, aluminum heatsink, 3.93-inch fan | Light use |
| ARCTIC Liquid Freezer III Pro 360 A-RGB | 360mm AIO | AM4, AM5, LGA1851, LGA1700, A-RGB | High load |
| ARCTIC Liquid Freezer III Pro 360 | 360mm AIO | 3 x 120mm, AM4, AM5 | High load, no RGB |
| Thermalright Aqua Elite 240 V3 | 240mm AIO | Dual PWM ARGB fans, S-FDB, PWM pump | Compact AIO |
The nine coolers
Thermalright Peerless Assassin 120 SE
A dual-tower air cooler with six heat pipes using AGHP technology, two 120mm PWM fans at 1550RPM, and a socket list that includes AMD AM4 and AM5 alongside several Intel sockets. The twin-tower layout is the standard way to get high cooling capacity at a low price tier. The title does not give tower height or RAM clearance, so check the product page against your case and memory. The two fans are the part that makes this cooler popular with budget builders, since a second fan is often an extra purchase on cheaper towers. The 1550RPM figure is a maximum speed from the title; PWM control lets the fans slow down at idle, so noise depends on your fan curve in the BIOS. Mounting for AM4 normally uses the board’s existing bracket, but read the instructions that ship with it.
- Pros: AM4 named; dual fans; low price tier for a dual tower.
- Cons: height and RAM clearance not stated; large and heavy to handle.
Who it’s for: Ryzen 5 and Ryzen 7 builds. Who should skip it: small-case owners.
Thermalright Peerless Assassin 120 SE ARGB
This is the same family as the plain SE, with dual TL-C12C-S PWM fans and an aluminium heatsink cover in an ARGB version. It names AM4 and AM5 and several Intel sockets. Treat it as the lighting variant: the cooling hardware appears similar from the title, so pick it only if you want the RGB, and check that your board has a 5V ARGB header and a free CPU fan header. Lighting adds a cable to manage and can only be controlled through the board’s software or a hub. Because a heatsink cover is mentioned in the title, the top of the cooler is cosmetic, which gives a cleaner look through a window panel but does not change how the fans move air.
- Pros: AM4 named; ARGB lighting; six heat pipes.
- Cons: same size concerns; lighting needs a compatible header.
Who it’s for: lit-up glass-panel builds. Who should skip it: anyone who doesn’t care about lighting.
Thermalright Assassin X120 Refined SE
The entry-level single tower: four heat pipes, a TL-C12C PWM fan, an aluminium heatsink cover and AGHP technology, with AM4 and AM5 named. A single tower fits more cases and leaves more room around memory than a dual tower, though it has less surface area. It suits a mid-range chip that does not run hot, and it is the lowest-cost aftermarket choice in the group. The Refined SE name suggests a revised design, so look at the full product title when you compare reviews of older Assassin X models. One tower and one fan is a common arrangement on budget coolers, and it works fine when the processor does not draw much power. If you later upgrade to a hotter chip, you may outgrow it.
- Pros: low price tier; smaller than a dual tower; AM4 named.
- Cons: less cooling headroom for eight-core chips.
Who it’s for: budget Ryzen 5 builds. Who should skip it: heavy workload users.
Thermalright Peerless Assassin 120 Vision MAX ARGB Black
A twin-tower air cooler at 2150RPM with a 5-inch IPS screen of 480×854 resolution built into the cooler, plus ARGB lighting. The socket list names AM4 and AM5 and Intel sockets. The screen is a visual feature, and the title does not explain how it is powered, controlled or what content it shows, so check the listing for software and cable requirements before buying. The 2150RPM figure is a ceiling rather than a typical speed, and high-speed fans are usually louder than the 1550RPM fans on the plain SE. The display adds a second connection, probably a USB header on the board, so confirm that your board has a free one. If you simply want cooling, the plain SE costs less and, from the titles, shares the same basic layout.
- Pros: high-speed fans; eye-catching screen; AM4 named.
- Cons: higher price tier for the display; screen setup unclear; may add noise at top speed.
Who it’s for: showcase builds. Who should skip it: quiet-first buyers.
be quiet! Pure Rock Pro 3 Black
The title states a 250W TDP, a double-tower design, two silent 120mm PWM fans, six 6mm heatpipes and high RAM and VRM cooling compatibility. It says “AMD and Intel” without listing sockets, so confirm AM4 mounting support on the product page. The title’s RAM compatibility claim is useful if you use tall memory heat spreaders. A TDP rating of 250W is a high claim for an air cooler, and like all ratings it is the maker’s figure, not a result we can verify. The black finish is a styling choice. Look at the fan orientation in the manufacturer’s images to see how the cooler sits over the first memory slot, and check the listing for the AM4 mounting hardware list before you pay.
- Pros: noise-oriented fans; RAM and VRM clearance claim; 250W TDP rating.
- Cons: sockets not listed; higher price tier than Thermalright.
Who it’s for: quiet builds with tall RAM. Who should skip it: buyers who want AM4 named in the title.
AMD Wraith Stealth Socket AM4
The slim boxed-style cooler: a 4-pin connector, aluminum heatsink and a 3.93-inch fan. It is designed for lower-power processors and costs the least. It is a replacement or spare, not an upgrade. Expect higher fan noise under load than the tower models. Small fans have to spin faster to move the same amount of air. The 3.93-inch fan size is very small compared with the 120mm fans on the towers. The cooler is also low in height, which makes it useful for small cases with limited clearance, but check the listing for the processors it supports and whether a separate bracket is required, since it is a socket-specific product.
- Pros: lowest price tier; AM4-specific; slim.
- Cons: limited cooling headroom; louder under load.
Who it’s for: office or light-gaming chips. Who should skip it: eight-core owners.
ARCTIC Liquid Freezer III Pro 360 A-RGB
A 360mm all-in-one liquid cooler with A-RGB lighting, and a title that names LGA1851, LGA1700, AM4 and AM5. A radiator this size needs a case with 360mm support, normally at the top or front, plus clearance for the tubing. The A-RGB version adds lighting for a higher price tier than the plain model. The title does not name the radiator thickness or the pump location, so measure the room you have in the case before ordering. AIO coolers need some thought about orientation: placing the radiator at the top of the case, with the tubes at the side, is a common layout, and keeping the pump lower than the radiator reduces trapped air. Check the manual for the specific recommendation.
- Pros: AM4 named; large radiator for sustained load; lighting.
- Cons: needs 360mm case support; pump failure is a possible risk that air coolers avoid.
Who it’s for: high-core-count chips in roomy cases. Who should skip it: small-case builders.
ARCTIC Liquid Freezer III Pro 360
The same 360mm AIO without RGB, with three 120mm fans named in the title and the same four sockets. Choose between this and the A-RGB version on lighting alone. As near-duplicates, any comparison of their cooling performance should come from the manufacturer’s page, not from guesses based on the names. The simplest decision rule is price: if the gap between them is small and you want lighting, take the A-RGB version; if your case has a solid side panel, the plain model is the better value. Both rely on the same fan count named in the title.
- Pros: AM4 named; lower price tier than the lit version; no lighting cables.
- Cons: same case-fit demands.
Who it’s for: clean-look builds. Who should skip it: anyone short on radiator space.
Thermalright Aqua Elite 240 V3
A 240mm all-in-one with double PWM ARGB fans, S-FDB bearings and a PWM-controlled pump, with AMD AM4/AM5 and several Intel sockets named. The smaller radiator fits more cases than a 360mm, and it is the lowest-cost liquid cooler here. Check the hose length and the fan-header needs on the listing page. A 240mm radiator is the usual compromise: more cooling surface than a single tower in many cases, with fewer clearance problems than a 360mm. S-FDB in the title refers to a fan bearing type, which the maker presents as a durability feature. The title does not mention the warranty length, so read the seller page before buying.
- Pros: lower price tier than the ARCTIC AIOs; PWM pump; AM4 named.
- Cons: less radiator area than a 360mm; AIO pump risk.
Who it’s for: mid-size cases wanting liquid cooling. Who should skip it: buyers who prefer fewer moving parts.
How we picked these
We compared the listing titles of CPU coolers surfaced for this keyword and kept the nine that state their socket support and cooling format. The picks rest on published specifications, manufacturer documentation and buyer reviews. Nobody on the team used or measured these units, so we give no temperatures or noise numbers. Where a title leaves out a detail, such as tower height, we say to check the listing. We group the two near-duplicate pairs honestly: the ARGB and plain Peerless Assassin SE are variants of one design, and the two ARCTIC Liquid Freezer III Pro 360 listings differ in lighting.
What to look for in an AM4 CPU cooler
Socket and mounting
AM4 coolers mount to a retention frame around the socket. Many aftermarket kits reuse the board’s existing bracket, while others require their own backplate. A title that lists AM4 by name is the safest sign. Our AMD CPU sockets list explains which chips use AM4. Intel sockets named in a title do not matter for an AM4 build, but they show that the bracket set is universal, so make sure the right parts are in the box. If you ever change platforms, a cooler that lists AM5 will also carry over.
Cooling capacity versus processor
The cooler’s rated capacity should exceed the processor’s power draw. A six-core, 65W chip is comfortable with a mid-tier tower, while an eight-core chip under sustained load benefits from a dual tower or larger AIO. A TDP figure in a title, like 250W on the Pure Rock Pro 3, is the maker’s rating. As a worked example, a six-core chip rated around 65W can sit under almost any aftermarket tower here at low noise, while an eight-core or sixteen-core AM4 chip that boosts to a much higher draw under a sustained workload is where the dual towers and the 360mm AIOs earn their size. Check the processor’s own specification page for its power figure, since boost behaviour varies by model.
Physical fit
Measure case clearance and RAM clearance. A pre-order fit check:
| Check | How |
|---|---|
| Cooler height vs case | Compare with the case’s stated maximum |
| RAM clearance | Check the first memory slot against the front fan |
| Radiator support | Confirm 240mm or 360mm mounts |
| Fan headers | Find CPU and ARGB headers on the board |
Noise and fans
PWM fans change speed with temperature. A cooler with large, slower fans usually sounds smoother than a small high-speed fan, like the one on the Wraith Stealth. Sound depends on the fan curve as well, so open your BIOS fan settings after the build and choose a profile that ramps up gradually. Fan bearings also affect long-term noise, and several titles mention a bearing type, which is worth checking against the warranty terms.
Air versus liquid
Air coolers have fewer parts to fail. All-in-one units move heat to a radiator and suit crowded cases with proper mounts. Choose air unless you have a clear reason. Liquid coolers add a pump, hoses and a radiator; the pump needs power from a header, and a failure there stops heat leaving the processor, so you should monitor temperatures in the first weeks. A radiator also needs a case with the right mounts and enough room for tubing. On the other hand, an AIO takes weight off the motherboard and leaves space around the memory slots, which can be a deciding factor with tall RAM. For more on this choice, see our tower air coolers guide.
Mistakes buyers make
People buy a cooler that does not list AM4, or skip the case-height check. Others pay for a screen or RGB when a plain tower would cool the same. Some mount a radiator with the pump above the highest point of the loop or forget to remove the plastic film from the base. People also forget that an AIO’s fans, radiator and pump all add noise, and that a larger radiator with slower fans is the lowest-noise way to use it. Another error is ignoring the retention frame: some AM4 boards have a stock frame that must be removed or kept, depending on the cooler, and mixing up the steps can leave the cooler loose. A final slip is assuming a 360mm AIO is automatically quieter. See the Ryzen cooler fit guide for socket details.
Verdict
The Thermalright Peerless Assassin 120 SE is the strongest value; the be quiet! Pure Rock Pro 3 Black is the quiet option once AM4 support is confirmed; the ARCTIC Liquid Freezer III Pro 360 suits large cases. Those on a tight budget with a six-core chip can go with the Assassin X120 Refined SE, and anyone who only needs a spare cooler for a basic build can use the Wraith Stealth. Whichever you choose, check AM4 on the listing, check the height against the case, and keep the manual handy for the mounting steps.
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Frequently asked questions
Will any AM5 cooler fit an AM4 motherboard?
Often yes, because AM4 and AM5 share the same hole pattern for the cooler on many designs, and several listings here name both sockets. Do not assume it, though. Read the product page for the mounting kit it ships with, and check whether it uses your board’s existing AM4 bracket or needs its own backplate. A title that names AM4 explicitly is the safest evidence you can get before buying.
Is a 360mm liquid cooler worth it on an AM4 Ryzen?
Only if you have a specific reason. A large radiator suits a high-core-count chip under sustained load, and it can be quieter at the same temperature than a small air cooler. Most AM4 gaming chips draw modest power, so a good dual-tower air cooler is often enough. A 360mm unit also needs case room for the radiator, so check the case specification first.
Is a new cooler needed if the Ryzen came with one?
Not always. Some processors ship with a boxed cooler, such as the Wraith Stealth, which is designed for lower-power chips. If your processor did not include one, or if you want lower fan noise and more headroom, an aftermarket tower cooler is a practical upgrade. Check the processor’s product page for whether a cooler is included.
How can a buyer tell whether a tower cooler clears the RAM?
Compare the cooler’s stated height and the clearance around the memory slots with your memory modules and your case. Dual-tower coolers with a front fan can overhang the first memory slot, and tall heat spreaders on the RAM make it worse. Titles here rarely list clearance, so check the manufacturer’s dimension drawing before ordering.
What thermal paste works with these coolers?
Most air coolers and all-in-one units in this group include thermal paste or have it pre-applied. A small pea-sized amount in the centre of the processor’s heat spreader is a standard method. If you reuse a cooler, wipe the old paste with isopropyl alcohol and apply fresh paste. Check the listing for what is in the box.
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