Best CPU Water Blocks of 2023 – Ultimate Round-up

| Last Updated: January 14, 2023

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One of the smartest inventions for the average computer is the CPU water block. Every computer requires an effective and adaptable cooling system, and this is when the CPU water block comes to the rescue. A water-cooling solution is convenient to protect your computer from heating up excessively. To know all about CPU water blocks, their parts, and the best models, continue reading our review.

Comparison of the Best CPU Water Blocks

  • Large surface area of the copper base for faster heat loss
  • Cooling capacity is impressive due to internal fan
  • Viton rubbers prevent damage during set up
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  • Beautiful LED color options with RGB and light controlling features
  • Ultimate cooling performance owing to the microchannel structure
  • Damage-free and sturdy with anti-corrosive nickel plating
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  • Fresh designing with customizable tops and cold plates of your choice
  • Tool-less installation owing to the mounting kit
  • Best for the money
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  • Striking 16 RGB LEDs for the ultimate lighting experience
  • Copper plate and micro cooling fins provide efficient cooling performance
  • Best RGB CPU water block
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  • Viton Rubber O-ring for reliable sealing and longevity
  • Acrylic aluminum covering on a large copper base for enhanced heat dismissal
  • Best aluminum CPU water block
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What is a CPU Water Block and What is it Used For?

A CPU water block is a cooling system that dissipates heat from a computer to prevent damage to various parts. It works on the same principle as a heat sink, thus allowing heat to transfer into the liquid that is flowing through the water block. It consists of a base, mid-plate, and a top, all connected together to enable effective functionality. The metallic base attaches to the computer CPU, and the top keeps the water locked in the device. In this way, heat is drawn away from the source and transferred to a coolant. Water blocks have become increasingly popular because of water’s high heat capacity and quick heat transfer properties. They are particularly used by gamers and in overclocking applications to keep the PC operating smoothly even on stress levels.

How Do I Choose a CPU Water Block

CPU water blocks might be something new to hear about, but once you get familiarized with its basic features and qualities, you’ll actually realize how useful these tiny devices can turn out to be. Every water block comes with numerous features, but you need to select the very best for maximum output and benefits on your computer.

Base Plate

Strength and durability should be your prime focus. The basic framework of your base plate should be constructed with good quality material so that it lasts a long time.

Mounting Hardware

This makes the installation process much easier. Mounting hardware will save you from the hassle of finding all the parts and equipment, so purchase a water block that comes with this lifesaving feature.

Compatibility For Installation

Installation is a common complaint when it comes to water blocks. Before you make a purchase, it is essential to read the instruction manual for a better understanding. Also, make sure to check the compatibility of the type of water block you select so that it can easily fit into your CPU.

Review of the Best CPU Water Blocks

Not sure what CPU water block would be best for your computer? This review will help you to make the right choice when buying a water block. We aim at making you aware of all the basic know-how of each brand so you can be stress-free and confident to choose a product that is comfortable for daily use.

Best Overall:
Phanteks PH-C350I_BK C350I 


  • Comes with an RGB connector 
  • Easy installation in both variants- Intel and AMD
  • Viton O-rings improve thermal resistance and temperature fight
  • Mounting bracket minimizes the flow resistance for a better performance
  • Long-lasting build due to the nickel-plated body and Viton rubber washers


  • Some features need an upgrade
  • Is slightly overpriced for access to everyone

What Recent Buyers Report

This water block has lived up to everyone’s expectations. All the buyers seem to be highly satisfied with its quality and performance. The device has an impeccable build quality and a smooth finish, which highly complements the RGB lighting. It works well enough to cool down the CPU effectively, decreases the thermals, and stabilizes overclocking. 

Why it Stands Out to Us

Being a versatile product, this water block has become a spotlight for liquid cooling. It comes with all the features that make a great device. The thermal performance is exceptional even in stress conditions, and the flow resistance is minimum. Apart from quality functioning, the water block has a beautiful finish and appearance, which improves aesthetics greatly.

Who Will Use This Most

This unit has excellent potential for overclocking, so it is perfect for cooling down the computer even when running at high speeds. The RGB lighting will enhance a gaming experience, which is why this water block has received great acceptance from all kinds of users.

Bottom Line

Why look for something else when you already have the best in front of you? Liquid cooling will become a fun experience with this water block because it doesn’t compromise on excellence and efficiency. Having a ton of features in one single device will sure make you feel that you’ve invested in something worthy and impressive.

Thermaltake Pacific W4


  • Excellent to battle high temperatures
  • Compatible for Intel and AMD sockets
  • Error-free installation due to the mounting hardware
  • Visually appealing in the variety of LED lights and colors
  • High-quality copper base that is nickel-plated for maximum protection


  • Port quality needs slight upgrading
  • Designing could use some improvement

What Recent Buyers Report

The working of this pump is highly appreciated by the majority of the customers. It runs effortlessly without any noise disturbances, and the efficiency to cool down the CPU is also amazing. The installation is easy and hassle-free, although a few buyers had problems with the cabling and RGB wires.

Why it Stands Out to Us

This water block won its way to the second-best on our list because of its versatility and multi-functioning. It stands out in appearances as the LED lights offer a new, colorful experience. The running is whisper-quiet, which is an amazing feature. Moreover, the copper base increases thermal conductivity to remove heat from the system with effect.

Who Will Use This Most

Custom PC builders can benefit greatly due to the numerous features this water block possesses. The LED lighting modes and the solid colors uplift the gaming experience by improving the overall look of your computer. Uniform and striking colors, along with a quick heat removal technique, is sure to satisfy the requirements in heavy gaming.

Bottom Line

Designed with easy installation and a durable framework, the Thermaltake Pacific DIY LCS Intel/AMDwill give you an outstanding cooling experience. The LED lighting system and RGB connector will take your CPU cooling to a whole different level.

Best for the Money:
EKWB EK-Velocity 


  • Compatible with Intel sockets and CPUs
  • Sturdy construction and top-quality materials
  • Acrylic top and copper nickel-plated base with a mirror finish
  • Backplate gasket improves the efficiency to lower down temperatures
  • Relatively inexpensive and economical as compared to others in the market


  • Installation instructions are not clear
  • LED lighting can be somewhat dim and flickering

What Recent Buyers Report

EKWB is undoubtedly one of the leading brands for water blocks. Their products have a reliable operation for gaming and overclocking to keep the degrees lowered to a great extent. The installation was easy, and it does the job right. However, the LED lights could use improvement because several people complained of faulty LEDs.

Why it Stands Out to Us

Price is one of the most important factors to keep in consideration when buying a water block. This water block is cost-friendly and easily affordable to keep your computer constantly running for long hours. Moreover, the amazing and customizable design grasps the attention of a wide audience.

Who Will Use This Most

Using your PC for a long time can lead to the heating up of the system, which imposes several risks and dangers. To avoid this, the EKWB EK-Velocity water block is an excellent option that will keep your temperatures down to a limit. Gamers and overclockers who use their computers at a maximum will receive the utmost pleasure by using this device. 

Bottom Line

With all the essential features that contribute to make it a top-quality product, this water block comes with a decent price tag. The acrylic finish and the polishing with a mirrored touch are great features considering the cost.

4. CORSAIR Hydro X Series, XC7 


  • Price-friendly and economical
  • User-friendly installation in Intel CPUs
  • Transparent nylon top for excellent color display
  • Micro cooling fins handle high temperatures well 
  • High degree 360-degree customizable light coverage 
  • Transparent flow chamber to show off the coolant and color range


  • RGB requires a controller
  • Limited CPU socket compatibility
  • Quality of materials can be enhanced

What Recent Buyers Report

It works great with a premium cooling capability that supports any gaming or overclocking. The RGB lighting, combined with a transparent appearance, gives an aesthetically pleasing look to the device. It is worth buying due to the smooth water flow and a whisper-quiet running. Heat dissipation works great.

Why it Stands Out to Us

This is the finest choice to enjoy a colorful experience while using the computer. The color display is impressive and stylistic, with customizable RGB lights in appealing visuals. For a cheap price tag, it serves its best purpose as a liquid water-cooling device and gets rid of the excess heat.

Who Will Use This Most

People interested in heavy games will use this the most because the LED lights stand out and give an aesthetically attractive display. It proves to be optimal when cooling the system and driving out excess heat. It is well worth the money to keep your computer boosted in long gaming sessions.

Bottom Line

CORSAIR has always been a reliable and trustworthy name when it comes to water blocks and CPU coolers. Their products come in handy for ideal performance and also look great with a solid build. Your gaming sessions are in good hands as long as you have this fitted in your system.

5. Phanteks PH-C350A_BK01


  • Viton rubber seals improve durability
  • Integrated RGB lighting synchronization
  • Crafted with premium and finest quality materials
  • Black and mirror chrome design with polished base finishing 
  • Internal fins provide high cooling and increased thermal flow
  • Aluminum magnetic and anodized cover plates for optimal heat conduction


  • It does not feature a backplate
  • Can be a bit too pricey for some buyers

What Recent Buyers Report

The reviews say it all! This water block has been composed with the highest standard of materials that helps keep the computer running and stable even under stress. LEDs are great and come in vivid colors. The packaging and presentation are impressive, along with keeping the computer cool at all times. Having a good potential for overclocking and easy installation, its performance is superb.

Why it Stands Out to Us

This water block steals the show when it comes to finesse, strength, and quality. It is a no brainer that exceeds in durability because of the sturdy construction resistant to wear and tear. The base is made of copper and is nickel-plated with aluminum covering hence contributing to improved heat conduction and dissipation. 

Who Will Use This Most

Featuring improved engineering technologies, this unit exhibits optimal cooling abilities in overclocking and gaming setups. With a polished and improved appearance, it is bound to keep your computer stable. Using a PC for long hours and maximum speeds demand a water block that complies with your needs. 

Bottom Line

Liquid cooling with this water block is safe and reliable because of the tight Viton rubber seal that prevents the coolant from spilling. It combines a chic appearance with stunning features that making this water block live up to your expectations.

Pros and Cons of CPU Water Blocks

Water blocks undoubtedly feature plenty of benefits, but every picture has two sides. Water blocks also have some limitations, but their efficiency is just remarkable and matchless. For a better understanding, we have listed some pros and cons that we think you should be aware of.


Let’s first see the pros. 

Better Than Air Coolers

Water blocks are the better beasts for CPU cooling as compared to air cooling. They run extremely quietly and smoothly with a silent operation that is praised by all. 

Easy to Setup

Water blocks are space-friendly and self-containing devices; consequently, they fit almost anywhere without taking up much area, so it becomes easy to set them up. 

Better Heat Dissipation

The swift heat conduction by water is the real winner because water’s high heat of vaporization cools down the CPU quicker. This feature comes as a prize to those who love overclocking and working their computers to a maximum. Heat dissipation is easier with water because it is available everywhere and can be managed resourcefully.


At the same time, the unit prevents the following hazards:

Difficult to Maintain and Expensive

Liquid coolers being a newer technology, might be a bit too tight on the budget. Few users also find it hard to maintain their water blocks because you need to drain and refill distilled water time and again to keep it running efficiently. 

Phanteks PH-C350A_BK01

Chances of Leak

A potential hazard is the possibility of leakage because water entering the parts of the CPU can ultimately lead to long-term damage and disastrous effects.


The ultimate safety of your computer lies in picking the best water block compatible with your needs and budget range. In our review, we have summarized the top picks so that you can save time and make the right choice simultaneously. We provide factual and research-based information so that your purchase becomes worthy and satisfactory based on the features of each product.

People Also Ask

If you need some additional information regarding water blocks, then give this section a read. A few queries that a lot of people ask regarding water blocks are listed below. Their responses will increase your knowledge and provide honest answers to any such questions that arise in your mind as well.

Do You Need to Refill Liquid Cooling?

It depends. If your cooler is a closed loop one, then you don’t need to do anything with it. The liquid will remain sealed in it and does not need to be replaced. However, you will need to refill liquid cooling in an open-loop cooler or a custom one that you built yourself. Open this kind of water cooler, flush out the old water and replenish it with a new one. Only distilled water must be used as a coolant. You will need to maintain a custom liquid cooler to prevent the spread of algae or mold in the long-standing water.

Is Liquid Cooling Dangerous?

Liquid cooling is not dangerous if you use a strong and robust product. The only risk associated with liquid cooling is the chance of spillage. Water that leaks in the hardware can cause permanent and extreme damage to your computer. However, if you purchase a liquid cooler that is tightly sealed and constructed in a strong framework, then you have nothing to worry about.

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