The Best AM4 Waterblocks for AMD Ryzen CPUs in 2021

7 Mins read


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If you plan to overclock your CPU, or just keep your temperatures at bay, you’ll need to get yourself a proper cooling solution. Although standard air CPU coolers are fine, nothing can beat the power of liquid cooling when it comes to handling the additional heat output. One of the most important parts of any custom liquid cooling loop is the CPU waterblock. In this guide, we’ll show you the best CPU waterblocks compatible with AM4 socket, and AMD Ryzen CPUs.

Read also: The Best Budget CPU Coolers in 2021

One of the main benefits when going with a custom liquid cooling setup is that it allows you to significantly increase your overclocking headroom. This enables you to push your CPU to its maximum limits, without fear of damaging it by overheating. Another benefit of liquid cooling solution is the fact that it’s much quieter compared to standard air cooling, since it reduces the need for using more than one fan in your PC case.

Reservoir, pump, radiator, fans, and tubing all play important roles in custom cooling loops, however, CPU waterblock is one of the most important components, since its job is to draw heat away from the CPU with maximum efficiency. Although most CPU waterblocks support a wide variety of different CPUs, some are better suited for Intel processors, while some exclusively support AMD’s AM4 socket. In this roundup we’ll examine the best CPU waterblocks for the AMD Ryzen 3000 and 5000 series desktop processors.

Best Value:

Phanteks Glacier C360A

Best Compatiblity:

Thermaltake Pacific MX1 Plus

Cheapest AM4 Waterblock:

Alphacool Eisblock XPX

Best Overall: WaterCool HEATKILLER IV PRO (AM4)

Compatibility: 939, 940, AM2+, AM3+, FM2+, AM4 | Base Material: Pure Copper | RGB: No

  • Sleek design
  • Fully made of copper
  • Great cooling performance
  • Easy mounting system
  • Affordable price
  • Doesn’t have RGB lighting

Although not as widely known as EKWB’s water blocks, WaterCool has been producing high-quality liquid cooling water blocks since 2001. The HEATKILLER series is no exception in that regard, especially the IV PRO model, which can boast with improved cooling performance over its predecessor, tool-less easy mounting system, and very affordable price. Successfully combining these three things together, the HEATKILLER IV PRO is one of the best CPU water blocks currently available on the market.

Being produced in Germany, the HEATKILLER IV PRO is manufactured on state-of-the-art CNC machines, and it features cold plate with thin fins, which results in larger surface and better heat dissipation. It is also worth mentioning that this water block is made of pure copper, which not only improves its overall cooling performance, but also gives it a very recognizable look.

Despite the fact that it features no RGB lighting, or transparent acrylic parts, the HEATKILLER IV PRO is a great high-performance water block which gets the job done, and it won’t break your bank.

Best for Enthusiasts: EKWB EK-Quantum Magnitude D-RGB AM4

Compatibility: AM4 | Base Material: Nickel-plated Copper, Acrylic Glass | RGB: Yes

  • High-quality materials
  • Outstanding cooling performance
  • Compatible with mini-ITX motherboards
  • D-RGB lighting
  • Very expensive

The EK-Quantum Magnitude is without a doubt the best CPU waterblock for AMD Ryzen CPUs. It brings the highest cooling performance with the lowest possible flow restriction, and it uses a unique combination of flow distribution insert, and cold plate geometry which is best suited for the chiplet layout of AMD AM4 socket processors.

Interesting thing about this waterblock is that each single piece is CNC machined separately, out of solid piece of material. The waterblock features a nickel-plated copper plate, as well as high-quality plexiglass which allows you to see what’s happening inside it. Thanks to its small footprint, this waterblock is also compatible with mini-ITX motherboards.

The EK-Quantum Magnitude also features an interchangeable inner frame, as well as an elegantly concealed LED strip with 30 individually addressable D-RGB diodes. Overall, it is a fantastic CPU waterblock, which despite its great features, does cost a bit too much.

Best RGB Waterblock: Corsair Hydro X Series XC7 RGB

Compatibility: 115X, 1200, AM4 | Base Material: Nickel-plated Copper | RGB: Yes

  • Very good cooling performance
  • Compatible with Intel and AMD CPUs
  • High-quality materials
  • Powerful RGB lighting
  • Requires an iCUE controller for RGB functions to properly work

If your are looking for a high-performance CPU water block with customizable RGB lighting, then you’ll like Corsair Hydro X Series XC7 RGB water block. Featuring nickel-plated copper cold plate, and more than 60 micro-cooling fins, this water block not only looks awesome, but it also keeps your CPU’s temperatures at bay, and allows you to achieve maximum clock speeds.

The XC7 RGB also features 16 individually addressable RGB LEDs which can deliver stunning RGB lighting effects. This water block is also fully compatible with Corsair’s iCUE controller, and powerful iCUE software which allows you to sync RGB lighting across all your iCUE-compatible devices. Finally, this water block supports both Intel and AMD CPU sockets, which is another big plus.

Best Value: Phanteks Glacier C360A

Compatibility: AM4 | Base Material: Nickel-plater Copper, Acrylic Glass | RGB: Yes

  • Sleek looks
  • Transparent acrylic top
  • Tailored Viton rubber sealing
  • Affordable price
  • RGB LED strip lighting
  • Mediocre cooling performance

Phanteks Glacier C360A is a perfect CPU waterblock for users who want an all-round and affordable cooling solution for their AMD Ryzen processors. This water block comes with its own Digital-RGB LED lighting, which means it doesn’t require any additional controllers, and it features an acrylic top which is quite rare to see in this price segment.

Like many other CPU waterblocks, this one also features a nickel-plated copper cold plate, and can boast with 0.4 mm high-density fins, and Viton sealing to ensure the best reliability and longevity. This waterblock exclusively supports AMD AM4 socket, and can be installed in two different orientations. The biggest flaw of this waterblock, however, is its RGB lighting, which is in form of a budget LED strip that needs to be attached to its sides.

Best Compatibility: Thermaltake Pacific MX1 Plus

Compatibility: 775, 115X, 2011, 2066, 1200, FM1, FM2, AM2+, AM3+, AM4 | Base Material: Nickel-plated Copper | RGB: Yes

  • Unique cylinder design
  • Universal compatibility
  • Built-in temperature sensor
  • Supports remote monitoring
  • Too big for mini-ITX motherboards
  • Dull RGB lighting

Thermaltake Pacific MX1 Plus is a stunning CPU waterblock that doesn’t just look good, but can also boast with universal compatibility with almost all Intel and AMD CPU sockets. The Pacific MX1 Plus even supports the ancient Intel LGA 775 socket, as well as AMD FM1 socket, which is quite impressive.

But besides featuring support for a wide range of CPU sockets, this waterblock has other features worth mentioning. Firstly, the MX1 Plus features unique cylinder side cover with a height of 52.5 mm that creates a depth perception for the RGB lighting which is placed inside it. Secondly, this water block comes with a built-in temperature sensor which allows you to monitor the temperature of the liquid inside your custom loop, and thirdly, it is fully compatible with TT RGB Plus software which enables you to remotely monitor its performance via mobile app.

However, this water block does have a few flaws. Its RGB lighting is somewhat dull, and its dimensions are quite big, so it’s not well-suited for installation on mini-ITX motherboards. But if you don’t mind these two things, the Thermaltake Pacific MX1 Plus is most certainly worth buying.

Cheapest AM4 Waterblock: Alphacool Eisblock XPX

Compatibility: 775, 115X, 2011, 2066, 1200, FM1, FM2+, AM2+, AM3+, AM4 | Base Material: Aluminum, Acetal | RGB: No

  • Cheap price
  • Compatible with Intel and AMD CPUs
  • Easy to install
  • Bad cooling performance
  • Non-standard LED connector
  • Low-quality materials

The Eisblock XPX is a budget CPU waterblock made by German manufacturer Alphacool. This waterblock is compatible with both Intel and AMD CPUs, and due to its low price it is quite popular among newcomers to the world of liquid cooling. The Eisblock XPX features no RGB lighting, and it combines aluminum and acetal parts to deliver optimal cooling performance.

Due to its low-quality materials, the Eisblock XPX isn’t well-suited for cooling high-performance CPUs, such as the AMD Ryzen 9 3900X, or AMD Ryzen 5 5600X. Despite the fact that it features 0.2 mm thick fin structure, it is much less efficient than other CPU water blocks that have nickel-plated copper cold plates. As such, the Alphacool Eisblock XPX is best suited for use in custom HTPC builds, or low-noise home office PCs.


Compared to air cooling, liquid cooling provides some unique advantages to high-performance computers that require more advanced cooling solutions. Liquid cooling systems allow you to push your CPU to its maximum limits, as well as reduce noise being produced by cooling fans.

The CPU waterblock is one of the most important parts of any liquid cooling system, since its job is to draw as much heat as possible from the CPU. Waterblocks come in various different forms, and with different features. Some of them support only one type of CPU socket, while some of them feature universal compatibility. Depending on your budget and preferences, you can be sure that there is a right CPU waterblock for you computer system.

We hope our buying guide helped you in search for the information you were looking for. If you have a question, or need any additional advice, feel free to leave a post in the comment section. We would be glad to help you.

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About author
Frank is the Editor in Chief at ViCadia. He is an avid PC gamer, as well as a tech enthusiast. Besides being a tireless writer, he is also ViCadia’s web developer.
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