best 240mm aio cpu cooler

Best 240mm AIO cooler 2024: Budget, performance, & RGB picks

Liquid cool your CPU with one of the best 240mm AIO’s for your budget

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The best 240mm AIO is often not recommended at all if there is room for a 280mm or 360mm, however, the compact nature of these CPU coolers can come in handy for anyone looking to build a smaller system. AIO (All-In-One) coolers come in different sizes, spanning from 120mm radiators to 420mm. The size refers to the fan housing, which determines the number of fans a radiator can accommodate. For instance, a 120mm radiator fits one 120mm fan, while a 240mm radiator fits two.

Do you need a 240mm AIO?

An AIO cooler will keep your CPU sufficiently cool and depending on the model you choose – it will look great while doing it too. That being said do you need a 240mm AIO? The answer isn’t clear cut but generally speaking, you can probably get away with an air cooler instead. Beefy air coolers (not stock or budget) can perform pretty close to 240m AIOs, however, the main draw behind an AIO is that you can use a lower fan speed and build an altogether quieter system. On the other hand, air coolers are far more reliable and cost-effective.

Best 240mm AIO cooler: ARCTIC Liquid Freezer II 240 A-RGB

ARCTIC Liquid Freezer II 240 A-RGB

ARCTIC Liquid Freezer II 240 A-RGB

Size

240mm

Noise level

43.8 dB

Max RPM

1800 RPM

Pros
  • Best in its class
  • Effective cooling
  • New pump design
  • Reduced noise
Cons
  • Small cold-plate size

At the top of the 240mm AIO cooler chart, we find the Arctic Liquid Freezer II. Its standout feature is an in-house designed PWM-controlled pump, offering better efficiency and quieter operation compared to rivals.

The Arctic Liquid Freezer II’s success owes to its smart pump design, braided tubing, and A-RGB static pressure fans. These features place it firmly as a top contender. It also introduces a new MX-5 thermal paste for improved performance.

A notable convenience is the inclusion of pre-installed fans, simplifying installation. The cooler works with AMD’s AM5 and Intel’s LGA 1700 sockets, expanding its compatibility. The PWM-controlled pump incorporates a 40mm fan with an RPM range of 1,000 to 3,000, consuming 0.5-2.7W.

Best value 240mm AIO: NZXT Kraken 240

NZXT Kraken 240

Size

240mm

Noise level

30.6 dB

Max RPM

2800 RPM

Pros
  • High performance & Max RPM
  • Reasonable noise levels
  • Stylish but discrete
Cons
  • Not as effective as the top selection

The Kraken 240 from NZXT comes with its striking 1.54″ square LCD display, offering a canvas for personalization that makes any PC build look incredible. Aesthetics aside, this cooler features a high-performance pump designed to deliver efficient and quiet cooling. Operating at speeds of up to 2,800 RPM, the Asetek pump ensures optimal cooling even under the most demanding workloads.

Complementing the powerful pump are the included F120P fans, engineered with fluid dynamic bearings to strike the perfect balance between static pressure and airflow. This results in powerful cooling performance with minimal noise, keeping your system running smoothly even during intense gaming sessions or CPU-intensive tasks.

Best 240mm AIO with LCD screen: ASUS ROG Ryujin III

ASUS ROG Ryujin III

Size

240mm

Noise level

29.7 dB

Max RPM

2000 RPM

Pros
  • Excellent aesthetics and performance
  • Large display
  • Fairly quiet
Cons
  • Paying for design

The ASUS ROG Ryujin III 240 All-in-one Liquid CPU Cooler delivers visually and physically. The 240mm radiator and Asetek pump technology will easily cool your CPU for years to come.

At the heart of the Ryujin III 240 is its innovative 3.5″ color LCD display, providing instant monitoring of hardware information and allowing users to upload customized GIF animations for a personalized touch. With doubled file volumes and intuitive controls via Armoury Crate, you have complete control over pump, fan speeds, and custom animations.

Equipped with industrial-grade Noctua iPPC-2000 PWM radiator fans, the Ryujin III 240 ensures high airflow and minimal noise, keeping your system cool and quiet even during intense gaming sessions. The embedded fan features a new ring-shaped frame design and advanced airflow channels, effectively reducing heat around the VRM area for enhanced performance and stability.

Best budget 240mm AIO cooler: CoolerMaster ML240L

Cooler Master ML240L RGB

Size

240mm

Noise level

30 dBA

Max RPM

2000 RPM

Pros
  • Outstanding budget performance
  • Simplistic design
  • Reasonable noise levels
Cons
  • No specific cons

This cooler ensures overall cooling efficiency and performance at a much lower cost than other 240mm coolers. This may not offer the same levels of aesthetics but that will not matter for a lot of PC builders.

Crafted with industrial-grade EPDM material, the cooler’s seals are reinforced for improved longevity and anti-leaking, ensuring reliable performance over time. Compatibility is also extensive, covering a wide range of AMD and Intel sockets, including the latest platforms.

Honorable mention: Corsair H100i Elite LCD XT

Corsair iCUE H100i Elite LCD XT

Size

240mm

Noise level

34.1 dBA

Max RPM

2100 RPM

240mm AIO cooler vs 280mm

Aside from the obvious size difference is there a noticeable performance difference? Well, generally speaking, the larger the surface area of the cooler, the better the heat dissipation and performance. Also, a larger radiator will allow you to lower the fan RPM, giving you similar performance with reduced noise levels.

280mm coolers will of course take up more space and may not fit inside the same PC cases as 240mm. Furthermore, the price of a 280mm cooler is going to be higher. For pure performance, we would suggest going for a 360mm cooler, however, there is no real need unless you have a powerful processor or plan to overclock.

240mm AIO cooler FAQs

What is the best 240mm AIO?

The ARCTIC Liquid Freezer II 240 A-RGB is still regarded as one of the best options for liquid cooling.

What is the best AIO brand?

ARCTIC and Lian LI are currently front-running in terms of the best brand, however, there are many component manufacturers that all deliver high-quality cooling solutions.

In Summary

That pretty much wraps up our top picks for the best 240mm AIO coolers on the market! 240mm AIO coolers are ideal for mid-towers and those that want liquid performance for less. While 360mm AIOs may offer more cooling, they are often overkill for low-mid range processors.

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