Best PSU for Ryzen 9 3900x

Launched in 2019, Ryzen 9 3900X processor comes loaded with 12 cores and it is capable of delivering excellent gaming performance when paired with a decent GPU. Since this processor consumes a whole lot of power, choosing the right power supply unit is extremely important. Considering the wide range of power supplies available in the online market, getting your hands on the best PSU for Ryzen 9 3900x processor can be a pretty difficult and time-consuming task.

If you are new to modern technology, there is no need to worry because I am here for the purpose of helping you choose the best PSU for your PC. Having researched for countless hours, I am fully sure that this PSU buying guide will prove useful for you. Here, I will do an in-depth review of the top 5 PSUs for Ryzen 9 3900X processor so that you can finalize your selection.

My Choices for the Best PSU for Ryzen 9 3900x


Corsair RMX Series RM750x Review - best psu for Ryzen 9 3900x

If you are on the lookout for the best power supply for Ryzen 9 3900X, it is guaranteed that you will find a better PSU than Corsair RM750X. The reason being that this PSU has a pretty compact design and its 160 millimeters long case can fit well in most modern CPU cabinets without any hassle. Best of all, this power supply unit from Corsair will not make your PC build bulky as it has a weight of just 3.65 pounds.

It is absolutely true that improper cable management can make the inside of your PC chassis look messy and unorganized. But you no longer have to be bothered as the package of this PSU includes modular cables using which you can keep your PC build clean and organized. Once you get the Corsair RM750X PSU, you will have to connect only those cables that are needed to make your system function properly.

Made with components of the greatest quality, this power supply boasts a stylish and solid internal construction, which implies that this PSU can last for numerous years to come. Even the outer construction of the Corsair RM750X power supply unit speaks volumes about its durability and this something you cannot ignore. In addition to all this, the top-grade Japanese capacitors of this legendary PSU offer maximum reliability and deliver unmatched efficiency at the same time.

This gold certified PSU from Corsair is armed with a smart cooling fan that ensures cool temperatures and less power consumption, thus making your overall experience more convenient. Buddy, you would be glad to know that the Corsair RM750X PSU is efficient enough for other processors like AMD Ryzen 5 3600 as well. This power supply is tuned for ultra-silent operation and it can do its job quietly even when you run heavy gaming titles and demanding applications.


  • Famous for its compact construction
  • Built with highly durable components
  • Boasts modular cables and high-grade capacitors
  • Equipped with a smart cooling fan
  • Tuned for maximum efficiency and quiet operation

ARESGAME 750W Review

ARESGAME 750W Review - Best Power Supply for Ryzen 9 3900x

Aresgame 750W power supply is the most highly recommended PSU for Ryzen 9 3900X owing to its cheap price tag and superb performance. The PSU is equipped with all the necessary connectors and it can efficiently meet the power requirements of gaming-grade processors. This top-notch power supply unit has a semi-modular design and its splendid black case greatly contributes to the PSU’s charming appearance.

Since the Aresgame 750W PSU has an apt size, it can be installed into all high-end PC cases provided that you know how to fit power supplies. Most notably, the cable design of this power supply is also quite convenient and this means that you will not have to spend hours arranging cables. With this high-performance power supply unit at your disposal, you will be able to reduce overall space usage and make your PC build look a lot more cleaner in the wink of an eye.

One thing that tech professionals love the most about this PSU is that it ensures completely stable and reliable output voltages. This way it facilitates consistent delivery of power throughout the day and provides you a great experience. The Aresgame 750W power supply also has a durable fan that measures 12 centimeters. The inbuilt smart fan boasts advanced control capabilities that enable excellent ventilation to prevent overheating from heavy workloads on an everyday basis.

Keeping everything else, the Aresgame 750W power supply is Bronze certified and it comes with 1 user manual which covers the various aspects of the product. In case you ever happen to face difficulty while fitting the PSU into your system, you can always refer to the user manual for detailed instructions. Thus, if you are really a hardcore gaming enthusiast, buying the Aresgame 750W will give you good value for your money and outstanding performance simultaneously.


  • Fitted inside a solid black case
  • Boasts a highly convenient cable design
  • Amed with an advanced and durable fan
  • This PSU carries Bronze certification
  • Comes with a detailed instruction manual


EVGA 220-G5-0750-X1 Super Nova Review - recommended psu for ryzen 9 3900x

Popular for its cool looks and amazing build quality, EVGA Supernova 750 G5 is considered the best PSU for AMD Ryzen 9 3900X by millions of diehard PC gamers. This newly launched power supply unit boasts an output wattage of 750 watts and hence, it is perfect for machines that require high amounts of power. Moreover, the unmatched performance and stunning design of this PSU justify the power supply’s price tag.

If you fear that the PSU might malfunction and you would have to pay to get it repaired after some time, you must remove all such concerns from your mind at the earliest. It is so because EVGA Supernova 750 G5 features a warranty period of 10 years and this is exactly what makes it stand out from other PSUs that are available online. The best part is that the manufacturer of this power supply unit is quite renowned and it specializes in offering industry-leading support.

Given the incredibly compact and modular make-up of the EVGA Supernova 750 G5 PSU, users can easily fit this power supply unit into their chassis without seeking any expert assistance. Above all, this PSU ensures consistent airflow to make your overall computing experience better. The EVGA Supernova 750 G5 power supply will work fine even if you pair your Ryzen 9 3900X with a high-end graphics card like NVIDIA RTX 2060.

The PSU is known for its gold rated efficiency and its dynamic bearing fan has a size of 135 millimeters. But that’s not where the story ends as the built-in eco-mode of this power supply unit facilitates silent operation. Therefore, if your aim is to own a PSU that will cater to your hardcore gaming needs, you should invest in EVGA Supernova 750 G5 as soon as possible.


  • Paves the way for uninterrupted ventilation
  • Has a highly advanced modular design
  • Equipped with a dynamic bearing fan
  • The PSU operates silently all day long
  • Ideal for high-performance video cards

MSI A750GF Review

MSI MPG Series A750GF 750 Watt Review - best psu for amd ryzen 9 3900x

MSI A750GF is another gold-certified Ryzen 9 PSU that has won the hearts of a large number of tech enthusiasts with its next-level performance and it is sure to win yours as well fam. This power supply unit is mainly popular for its low power consumption and you cannot neglect this fact. Compared to the majority of PSUs available over the web, MSI A750GF power supply offers more efficiency because of its 80+ gold certification.

This power supply unit features a super-intelligent FDB fan that runs quietly even when high amounts of resources are being consumed. What makes this PSU worth owning is its durable build and compact dimensions which make it possible for you to install the power supply into any chassis of your choice. The coolest part about the MSI A750GF PSU is that it fits quickly into almost all modern cabinets, thus saving your valuable time.

As I all know, no one likes the sight of a PC case that is stuffed with tangled cable wires and this is also one of the prime reasons why every PC owner wants to buy a PSU that comes with modular cables. The good news is that the MSI A750GF power supply unit has a modular design. Once it is installed in the cabinet, it still leaves ample space for hassle-free cable management and also guarantees unobstructed airflow.

The MSI A750GF power supply comes with a warranty of 10 years and this clarifies that this PSU promises an incredibly long lifespan. Furthermore, it features Japanese capacitors of great quality. The MSI A750GF PSU is capable of supporting the most powerful GPUs of both NVIDIA and AMD and this fact is undeniable.

Taking the aforementioned points into account, it would not be wrong to say that this PSU can work wonders for catering to your processor’s power needs in the most efficient manner.


  • Mainly popular for its compact dimensions
  • Consumes a lower amount of energy
  • Ensures continuous airflow 24/7
  • Facilitates organized cable management
  • Armed with modern Japanese capacitors

GAMEMAX RGB 850 Review

GAMEMAX Review - power supply for ryzen 3900x

Regarded as the most efficient and stylish power supply for Ryzen 3900X, Gamemax RGB 850 PSU is indeed a big favorite among the modern generation of PC users all over the world. This power supply supports up to 25 different RGB lighting modes with the help of which you can add style to your gaming rig in a flash. As a matter of fact, you can change the lighting configurations of your power supply and switch to a different mode just by pressing the RGB controller switch.

You can wholeheartedly trust Gamemax as this brand has been in the limelight for being one of the best manufacturers of high-end PC components. This power supply unit from Gamemax boasts high-quality capacitors which ensure a reliable and stable operation even at times when a lot of power is being used. Moreover, installing this PSU in your computer’s chassis will be pretty easy because it weighs only 6 pounds.

Take note that the Gamemax RGB 850 power supply is fully modular and thus, cable clutter will not be an issue in the least bit. If you are worried about your CPU reaching high temperatures, you can take a chill pill buddy as this PSU by Gamemax is known to dissipate heat efficiently. Another added advantage is that this gaming PSU also enables excellent airflow around the clock.

Since the Gamemax RGB 850 power supply is backed with a 5-year long warranty, it will be the responsibility of the manufacturer to provide the after-sales service in case your PSU shows signs of malfunctioning during the warranty period. Hence, see to it you purchase this gaming PSU to leverage the full potential of your AMD processor.


  • Features a stylish design and robust build
  • Comes with RGB lighting capabilities
  • Enables efficient heat dissipation
  • Boasts a quick installation procedure
  • Carries a long warranty of 5 years

Conclusion – Which is the Best Power Supply for Ryzen 9 3900x Processor?

There is no doubting the fact that owning a high-performance PSU has become the need of the hour, especially for gamers and technology lovers. However, finding the best power supply unit for your PC build can prove to be tricky owing to a lack of tech-savviness. After thoroughly reviewing the above-mentioned power supplies, I concluded that the best PSU for Ryzen 9 3900X processor is Corsair RM750X all thanks to its optimum performance and great build quality.

The Corsair RM750X PSU boasts a highly compact construction and a smart fan that effectively dissipates excessive heat, thereby keeping your system cool at all times. Another nice thing about this power supply is that it comes packed with modular cables and its lightweight design is nothing less than a true delight for PC buffs. Lastly, in case you are still unable to pick the right PSU for your computing needs, feel free to connect with us for specialized assistance.

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