This roundup aims to give you the best CPU coolers for Ryzen 7 5800X in 2021.
The Ryzen 7 is the mid-tier series in AMD’s desktop CPU hierarchy. While Ryzen 3 and 5 series are specifically targeted towards gamers, and the Ryzen 9 is preferred by professionals and content creators, Ryzen 7 CPUs provide all-round performance and score well in both areas.
The Ryzen 7 5800X is the latest addition in this series and provides a good improvement over its predecessor, the Ryzen 3800X, despite both of them having the same specs for the most part.
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Best CPU Cooler For Ryzen 5800X Buying Guide
But to have any CPU perform to its full potential, you must pair it with an adequate cooler as well. Before the Ryzen 5000 series, AMD used to provide a stock cooler with almost all of their Ryzen CPUs. In Ryzen 5000, however, they only did so with the Ryzen 5 5600X.
This means it is up to you, the consumer, to have a reliable thermal solution for your Ryzen 7 5800X.
To make it easier for you, we have compiled this guide of the best coolers for 5800X. You will find that each entry on this list is accompanied by a short review and a set of pros and cons.
We have ensured that we’ve included coolers at very diverse price-points so you can find a match no matter the size of your wallet. Without further delay…
1. Scythe Mugen 5 Rev.B
Best Budget CPU Cooler For Ryzen 7 5800X
- Quiet 120mm Kaze Flex fan (Fluid Dynamic Bearing) for high airflow and static pressure with silent operation(PWM, 300-1200RPM). Addition fan clip for adding 2nd fan(optional) as push-pull configuration for maximal performance.
- RAM modules with tall heatsink are no problem for the Mugen 5, the asymmetric design allows unrestricted access to the memory banks. Classic size CPU fan stands 154.5mm in height, Mugen5 offers great compatibility with most popular computer case on the markets.
- Secure and easy-to-install spring loaded mounting system compatible with socket INTEL LGA 775 / 1150/1151/1155/1156 / 1200 / 1366 / 2011(V3) Square ILM / 2066 Square ILM & AMD AM4 / AM3(+) / AM2(+) / FM2(+) / FM1
We would not call Scythe the most recognizable brand on the planet. However, they make award-winning coolers.
In 2015, they earned an “Excellent” award from Hardware.info for their Fuma radiator.
Previously, they won the Best Cooler of The Year in 2014 from the same publication. While they may not be as famous as the other brands on this list, you can still expect some exceptionally crafted coolers from them.
The Scythe Mugen 5 Rev.B is exemplary of this fact.
The first thing you need to know about it is that it’s a tower cooler. Thus, you should make sure that you have enough clearance inside your rig before you purchase it. Just how much clearance do you need though?
The cooler measures at a height of 154.5 mm, a width of 130 mm, and a depth of 110 mm.
It weighs just under a kilogram (890 grams to be exact). Despite its size, it has extremely good RAM compatibility, although it depends on your motherboard as well.
Nevertheless, the radiator fins have a cut out to ensure that if it does encroach on the RAM sections of your motherboard, you can install your RAM underneath.
Not only is this cooler compatible with AMD AM4 socket (for Ryzen 7 5800X processors) but it can also be fitted to most of the latest Intel sockets too.
This includes LGA 775,1150,1151,1155,1156, ,1200,1366,2011(V3), Square ILM, and 2066 Square ILM. The Scythe Mugen 5 Rev.B is relatively easy to install. It comes with a spring-loaded mounting system.
Connected to the copper base plate exist six 6mm heat pipes, prime for effective heat dissipation. The fan that sits in front of the radiator seems standard. It’s a 120mm ball-bearing fan.
If you feel that this won’t provide your CPU with enough cooling, you can add an additional fan using the provided fan clip.
Overall, the Scythe Mugen 5 Rev.B delivers excellent cooling at a reasonable price. If you’re looking for a budget tower cooler, then we highly recommend this entry.
- Wide-ranging RAM support
- Features a clip for an additional fan
- Surprisingly silent
- Cooling performance could’ve been better
- Not suitable for aggressive overclocking
2. Deepcool Assassin III
Best Air CPU Cooler For Ryzen 7 5800X
- 7 heatpipes, dual 140mm performance fans, 280W TDP, easy installation, custom screw driver included.
- 54mm RAM clearance. Support Intel LGA2066/2011-v3/2011/1151/1150/1155/1366 and AMD AM4/AM3+/AM3/AM2+/AM2/FM2+/FM2/FM1
- New sinter heatpipe technology extensively increases the heat transfer efficiency.
Deepcool has been producing quality computing peripherals and accessories since the late ’90s. It should not be a surprise to see one of their products on our list of the best Ryzen 7 5800X coolers.
Technically, the Assassin III falls under the Deepcool Gamer Storm product line which consists of gaming cases, cooling solutions, and other game-orientated accessories.
Thus, it should be understood that the Deepcool Assassin III is geared towards gaming cases. The new Ryzen 5000 series was created for gamers in mind, however, it would not go wasted in a professional set up. This is true for the Deepcool Assassin III.
As the name implies, it’s the third entry in Deepcool’s Assassin series. Much like its predecessor, the Assassin II, the Assassin III is built like a giant tower cooling sandwich.
However, where the Deepcool Assassin III had red fans, the Assassin III has uniformly black fans. This means it will cooperate with the color scheme of most builds.
The Deepcool Assassin III essentially consists of two coolers connected in a tower cooling setup. It’s made up of two fans and two cooling blocks/radiators.
The fans are made with Deepcool’s (Gamer Storm’s) patented double-layer fan blade design, held to the radiator with an obsidian-like spoiler. The fins on the radiator are nickel-plated.
The base plate is built primarily from copper and has a convex mirror finish. Connected to it are seven heat-pipes.
That’s one more heat-pipe than the Scythe Mugen 5 Rev.B. Since the Assassin III is a tower cooler, you will need to ensure that it has enough clearance in your rig. Its dimensions are as follows: 161×140×165 mm.
Overall, this may be more expensive than the previous entry but it objectively outperforms it. If you can afford it, we highly recommend the Deepcool Assassin III.
- Easy installation process
- Exceptional thermal performance
- Looks good with any theme-based PC build
- Little audible under load
- Memory clearance is a little limited
- Huge footprint. Can block first PCIe slot in some motherboards
3. ARCTIC Liquid Freezer II 240
Best 240mm AIO Cooler For Ryzen 7 5800X
- COOLER THAN OTHER AIO WATER COOLERS: The ARCTIC Liquid Freezer II has a more efficient cool plate, pump and radiator that makes a difference among other AIO water pc fan coolers
- 15°C LOWER VOLTAGE REGULATOR TEMPERATURE: An additional 40 mm VRM fan (PWM controlled) next to pump can provide extra cooling for the base and voltage transformer
- INTEGRATED CABLE MANAGEMENT: The PWM-cable of the fans are integrated into the sleeved tubing. Thus there is only one short cable visible from the pump to motherboard replacing the usual cable mess
Next on our list of the best coolers for the Ryzen 7 5800X comes the Arctic Liquid Freezer II 240.
It’s the first liquid cooler on our list. At the time of writing this guide, it cost as much as Deepcool Assassin III.
Arctic was founded in 2001 (as Arctic Cooling) and is located in Hong Kong, Germany, and the USA. They specialize primarily in cooling equipment.
One of the ARCTIC Liquid Freezer II 240’s more unique features is the VRM fan included on the cold plate housing. So not only will this cooler keep your CPU cool but your motherboard too. The VRM fan plugs separately.
Therefore, while you can control the CPU’s cooling through BIOS, you can’t do the same for the VRM.
Nevertheless, it’s fairly silent and cannot be heard over the rest of your system’s noise. The pump on this cooler is part of the block. The impeller can be seen near the cold plate.
To neaten up the setup, Arctic has chosen to run the Liquid Freezer II 240’s fans through the tubes that connect to the base plate. Much like the previous entries on this list, there are no fancy RGB lights to speak of on this cooler.
That’s one of the reasons this is one of the most affordable all-in-one liquid cooling solutions. This cooler uses a sealed water loop. You don’t have to worry about refilling it or adding anything to it.
Overall, you’re paying purely for the ARCTIC Liquid Freezer II 240’s performance when you purchase it. It can be said that it goes above and beyond its price tag in terms of performance.
Furthermore, you can always replace its fans, if you want something more colorful in the future. Nevertheless, this entry is definitely one of the best value for money 240mm AIO Coolers.
- Dedicated fan to cool down motherboard’s VRM area
- Single PWM Connection
- Reasonable price
- No RGB lighting
- No physical manual (digital version can be downloaded though)
4. Corsair iCUE H115i RGB Pro XT
Best 280mm AIO Cooler For Ryzen 7 5800X
- Two 140mm Corsair ML series magnetic Levitation PWM fans deliver improved airflow for extreme CPU cooling performance
- 16 individually addressable RGB LEDs light up the pump head to produce stunning customizable lighting effects to match your build
- Experience incredible cooling performance with each Fan running from 400 to 2 400 RPM while in operation
The spot for the most expensive cooler on our list belongs to the Corsair iCUE (pronounced IQ) H115i RGB Pro XT. Corsair requires no introduction.
You can find the Corsair H100i RGB Platinum SE version on our list of the best white CPU Coolers.
While the Corsair iCUE H115i RGB Pro XT is a perfect fit for the Ryzen 7 5800X, it’s compatible with a wide variety of AMD and Intel.
It consists of two pulse-width modulated 140mm Corsair ML fans that can be controlled using Corsair’s iCUE software.
You can get them at 400 RPM to 2400 RPM. Even with the fan on full tilt, this cooler is still surprisingly quiet.
The controllability does not end at the fans. All 16 of the cooler’s RGB lights on the pump head are addressable and are sync-able with your other Corsair gear.
Everything about the Corsair iCUE H115i RGB Pro XT is sleek and beautifully crafted. From the radiator to the pump head.
They are made from a sleek black polished metal. The cold back plate appears to be constructed from copper.
As with the ARCTIC Liquid Freezer II 240, this cooler works with a closed loop and requires no maintenance.
Once you install it, you won’t need to worry about refilling or changing out the liquid.
Installation is relatively easy. However, the tight screws on the radiator will require you to use quite a bit of dexterity and strength to look them into place.
In addition to this, the wires can be a little tricky to route and work with.
The Corsair iCUE H115i RGB Pro XT is the best-looking cooler on this list. It’s quiet, customizable, and well built. The only thing that may discourage you from purchasing it is its price tag.
- ARGB Pump Lighting
- Customizable fan speed
- Perfect for overclocking the Ryzen 5800X
- 5-year warranty
- USB cable on pump’s left side looks awkward
- Screw holes are pretty tight
There you have it. In this guide, we explored four of the best coolers for the Ryzen 7 5800X.
You’ll notice that the picks in this guide were primarily tower and all-in-one coolers.
If you’re interested in a more compact solution, visit our guide on the SFF-friendly CPU coolers.
Best CPU Cooler For Ryzen 7 5800X – FAQs:
Below are some popular questions people ask regarding Ryzen 5800X and CPU coolers, with our answers.
No, the only Ryzen Zen 3 processor to come with a stock cooler is Ryzen 5 5600X.
Thermal paste usually comes pre-applied on the stock cooler of a CPU. Since Ryzen 5800X doesn’t come with any stock cooler, there’s no thermal paste out of the box.
You can take whichever route you like. AIO coolers look more pleasant but will cost more to provide the same level of performance as high-end air coolers.
They generally transfer heat more efficiently than air coolers and run quieter.
Air coolers cost less than AIO coolers for roughly the same performance and have a comparatively easier installation process. Their main disadvantage is that they can’t always fit inside your chassis, especially if you got an SFF PC build.
That’s why it’s better to check the compatibility of such coolers with your case before making a purchase.
Overheating can be harmful to generally all of your PC components, and the same is the case with CPU. Overheating can make your system unstable and shut down.
Even if it doesn’t die immediately, overheating for a long period can reduce the lifespan of your CPU.
Yes, you can. Any good aftermarket PC chassis comes with cutouts through which you can access the motherboard from both sides and remove the cooler.
Yes, if 70° is the your CPU temp under full load, it’s perfectly fine. CPUs are designed to go as high as 100°.
After this point, you will start to feel throttling. Read our guide on lowering the CPU temperature for more info.