Scythe AS500

The Scythe AS500 is regarded as one of the best air cooler for 5900x, offering excellent thermal performance and quiet operation to keep your CPU running efficiently.The Scythe AS500 is a high-performance air cooler that comes equipped with two 140mm fans and offers great cooling capabilities for most CPUs. Its visually appealing design and compatibility with a variety of processors make it a popular choice for enthusiasts. The AS500 is also quiet in operation and features an attractive ARGB lighting effect that adds a bit of flair to your build.

The AS500 ships with nickel-plated mounting hardware that ensures compatibility with most Intel and AMD sockets. Its single tower heatsink features five copper heat pipes and a high fin density. Its slim profile allows for maximum RAM height compatibility and a clean look. It also features a milled baseplate and tension screws for simplified installation.

The included 140mm Kaze Flex fans are engineered for optimal airflow and low noise levels. They feature an anti-dusting cage, which helps prevent dust from accumulating in the fan's blades. While the AS500 does not offer the best noise-to-cooling ratio of all air coolers, it is still an excellent option for most CPUs. Additionally, it is compatible with a wide range of motherboards and graphics cards.

Cooler Master MasterChill XT

Cooler Master is one of the most recognizable names in PC chassis, power supplies and CPU coolers. Their MasterLiquid Lite series of budget AIO liquid coolers has been well received by budget PC builders offering good value and great performance from a trusted brand. The latest iteration, the MasterLiquid 360L Core ARGB, looks like it will continue this trend with MSRP pricing under PS105 and even less at places like Amazon.

It features a dual-chamber pump with upgraded Gen3 internal impeller and housing design, providing exceptional cooling performance with silent operation. The 280mm radiator has been optimized with expanded aluminum fin surface area to accelerate heat dissipation. The included Silent Gale P12 fans are capable of a maximum of 2,000RPM.

It is compatible with the newest Intel and AMD sockets including Alder Lake, LGA2x, and LGA400 with all brackets included in the box. The CPU block also features a 2.4-inch IPS display which shows images, GIFs and system information, something not all competing AIOs can do. However, unlike other AIOs it does not include a GPU compartment and can only accommodate 2-slot cards.

Corsair H115i RGB Platinum

Corsair has stepped up its game with the new Hydro Series H115i RGB Platinum, which features an all-new radiator and cooler design that looks stunning. This 280 mm AIO is an effective performer on both our Intel and AMD test benches, keeping CPUs from thermal throttling while overclocking.

The new radiator is made from aluminum and uses a dual-row design to support a pair of 140mm fans (not included). Corsair also added an RGB pigtail that connects the pump housing and fan headers, giving users the option to add custom lighting effects on the fly using iCUE software.

This is a significant improvement over the H115i Pro RGB, which only offered a single-zone LED on the pump head. With 16 LEDs on the head and four on each fan, this is one of the most vibrant and customizable Hydro Series AIOs on the market.

The H115i RGB Platinum is an excellent all-in-one liquid cooler that offers plenty of performance and style to suit most PC builds. It's a great choice for anyone who wants an attractive, easy-to-install AIO.

ARCTIC Freezer 34 eSports

The ARCTIC Freezer 34 eSports is an air cooler that looks and performs well. It is a tower CPU cooler with two 120mm fans in push-pull configuration. It is a powerful cooling solution for Intel and AMD CPUs. The fans are optimized for static pressure and deliver high performance with low noise. The design is sleek and modern, and the colors can be customized.

The Freezer 34 eSports is compatible with all of the latest Intel processors. It also supports the newer AMD chips. The cooler has a lot of features to offer, including the Fluid Dynamic Bearing and the BioniX P fans that are optimized for static pressure. It is also a carbon neutral product, which is great for the environment.

The Freezer 34 eSports has a unique design that sets it apart from other air coolers. Its heat pipes have a special surface that creates micro-turbulences and increases the amount of heat that it can disperse. The heat sink also has a black coating that is more than just a paint job. The coating has additives that make it more efficient at transferring heat to the air.

Noctua NH-D15

Noctua is one of the world's best and most well-respected cooler manufacturers. They're also known for high end and specialty products aimed at those seeking extreme performance and very low noise solutions. Noctua's latest dual tower offering is no different, and it comes in the form of the NH-D15.

This cooler is a beast in all senses of the word. It's huge and won't fit in most SFF systems. It can also be expensive when compared to many AIO water coolers that have similar performance.

The NH-D15 is built on the foundation of the acclaimed NH-D14, but with more fin stacks and better heat dispersal. It supports both Intel and AMD sockets. It stands at 165mm tall without a fan, and it's 150mm wide and 135mm deep. This is a big cooler, and it will overhang most motherboard memory slots when using two fans. It has been designed to ensure that it does not interfere with the primary PCIe slot on most ATX and mATX boards, but it's not guaranteed to work with all configurations of motherboards.

Conclusion

Determining who has the best air cooler for the 5900X CPU involves evaluating factors such as cooling performance, noise levels, build quality, and price. Brands like Noctua, be quiet!, and Cooler Master have established themselves as leaders in the air cooling market, offering a range of high-quality solutions tailored to the demanding requirements of the Ryzen 9 5900X processor. By considering individual preferences and system specifications, users can select the air cooler that best meets their needs, ensuring optimal thermal performance and system stability for their gaming or productivity tasks. Ultimately, the best air cooler for the Ryzen 9 5900X is one that strikes a balance between efficient cooling, low noise levels, and value for money, providing users with a reliable and effective cooling solution for their high-performance CPU.