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Best Power Supplies For Ryzen 9 3900X

AMD’s Ryzen 9 3900X has been a popular choice for PC builders and gamers since its release. This 12-core CPU is capable of some serious gaming and productivity performance, but you’ll need a quality power supply to make the most of it. In this blog post, we’ll take a look at some of the best power supplies for Ryzen 9 3900X, so you can make sure your system is running at its best.

The Ryzen 9 3900X is AMD’s new flagship desktop processor. It offers 12 cores and 24 threads, making it a powerful performer for gaming, content creation, and other demanding tasks. If you’re planning to build a PC around the Ryzen 9 3900X, you’ll need a good power supply to ensure that your system runs smoothly. 

When it comes to choosing the best power supplies for Ryzen 9 3900X, it’s important to consider a few things. Some of the key factors to look at include wattage, voltage stability, and cable management. The right power supply can provide clean and reliable power to your system, while helping to keep temperatures down and extend the life of your components. 

In this blog post, we’ll take a look at some of the best power supplies on the market that are perfect for AMD’s new flagship desktop processor. So, if you’re in the market for a new PSU and you have a Ryzen 9 3900X, check this out!

Top 6 Best Power Supplies For Ryzen 9 3900X

1- Corsair RM750x

Corsair RM750x Power Supplies For Ryzen 9 3900X
  • Modular cables make PC builds and upgrades easy
  • Temperature controlled fan for whisper-quiet operation
  • Japanese 105 Degree C capacitors for a long and reliable lifespan
  • Zero RPM Mode means it’s virtually silent at low/medium loads
  • Corsair Link integration for monitoring power usage and to control fan speed

The Corsair RM750x is the perfect power supply for Ryzen 9 3900X processors. It has an 80 Plus Gold certification, meaning it consumes less power, makes less noise, and runs cooler than other power supplies. It’s also tuned for low noise operation, even at full load. With a MTBF of 100,000 hours, you can be sure this power supply will last long into the future.

It features zero RPM fan mode for near silent operation at low to medium loads, making it perfect for media centers and home theaters. Plus, its high-quality construction ensures reliable performance and compatibility with a wide range of components. It’s made with 100 percent industrial grade Japanese capacitors, so you know it can handle even the most strenuous tasks.

Plus, it’s rated for 105°C, so you can be sure your system will stay cool even under pressure. Fully modular, so you can only connect the cables your system needs, it’s perfect for gamers and enthusiasts who want the best performance possible.

2- Thermaltake Smart RGB 700W

Thermaltake Smart RGB 700W Power Supplies For Ryzen 9 3900X
  • Single button changes color of fan blades and light bulbs
  • 256 colors for limitless customization options
  • Memory function saves time with color selection
  • Increased brightness of the 10 LED light bulbs
  • Smart RGB Fans for Excellent Cooling and Silence

Thermaltake’s Smart RGB 700W power supply is the best way to give your Ryzen 9 3900X the juice it needs. Not only does this PSU deliver clean, stable power, but it comes with a one-button RGB lighting controller that lets you choose from 15 different modes – including pulse light, 256 color RGB cycle and solid light – to match your system’s style.

Plus, the fan color can be switched among seven colors, so you can always find the perfect shade to match your build. It delivers up to 87 percent efficiency and is 80 plus certified, meaning you’ll lose less power and money in the long run. Plus, its smart RGB design adds a touch of personalization to your setup. Featuring a patented RGB LED fan, this PSU adds an extra layer of style and sophistication to your system.

Plus, with 10 LED light bulbs, it emits brighter light than standard PSUs. This makes it easier to see what’s going on inside your PC, whether you’re gaming or working in the dark.  It features a single +12 Volt rail design, eliminating the limitations caused by voltage distributions. Plus, it comes with RGB lighting that lets you customize your system’s look.

3- Thermaltake Toughpower GF1 650W

Thermaltake Toughpower GF1 650W Power Supplies For Ryzen 9 3900X
  • Fully modular cables for easy installation and reduced clutter
  • 140mm hydraulic bearing fan for quiet operation and long life
  • Japanese capacitors provide a high level of reliability and stability
  • 80 PLUS Gold certified, delivering up to 90% efficiency
  • Certified for NVIDIA SLI and AMD Crossfire Multi-GPU systems

The Thermaltake Toughpower GF1 650W is perfect for powering Ryzen 9 3900X processors and high end graphics cards. It features a smart zero fan design that only kicks in when the PSU is under load, ensuring a quiet and efficient operation. Plus, with 16 AWG wires, this PSU is built for serious enthusiasts PC builds. It’s 80 plus gold certified and Intel C6, C7 States ready, delivering up to 90% efficiency.

The Ultra quiet 140mm hydraulic Bearing fan ensures near silent operation, while the PWM function allows you to fine-tune the fan speed according to your needs. This PSU is equipped with Japanese capacitors, which offer unparalleled stability and reliability. Plus, its zero cable platform ensures optimal heat dissipation and outstanding power quality. Its <30 mV low ripple noise ensures excellent performance and keeps performance-critical components, such as high-end graphic cards, operating reliably longer.

Plus, its Strict voltage regulation guarantees <2% Voltage regulation for major rails, compared to Intel’s standard 5%. This power supply features a single plus 12V rail to provide plenty of power to your components, and industrial protections to keep your system safe from harm. Plus, it’s quiet and efficient so you can get on with your computing without any distractions.


ARESGAME 750W Power Supplies For Ryzen 9 3900X
  • 750W of continuous power for heavy-duty use
  • Fanless mode operation for near silent performance
  • Multiple protection circuitry safeguards your system
  • MTBF of 100,000 hours ensures long life
  • Semi-modular design for easy installation

If you’re looking for a reliable, affordable power supply that will let your Ryzen 9 3900X reach its full potential, don’t miss out on the ARESGAME 750W! This 80 PLUS Bronze-certified power supply delivers 85% efficiency or higher and very stable voltage output, so you can be sure your system will perform at its best. This semi-modular ATX gaming power supply is built to deliver 750 watts of reliable, continuous power. With a silent and durable 120mm fan, full protection including OVP/UVP/OPP/SCP, and a wide range of connectors, this PSU is up to the task.

Plus, all cables are black – no ketchup and mustard mess here! This powerful unit has more than enough wattage to spare, and comes equipped with all the connectors you need to power your PC. Plus, it’s cooled by air, so you can be sure it will keep your system running smoothly even under heavy loads. This semi modular power supply was designed specifically with high-powered systems in mind, and provides more than enough juice to handle even the most demanding builds. Plus, its sleek design ensures that it will look great in any system.

5- NZXT C650

NZXT C650 Power Supplies For Ryzen 9 3900X
  • Sleeved cables deliver greater durability and longevity
  • Zero RPM Fan Mode silently cools your PSU and prolongs its life
  • Hybrid Silent Fan Control for quiet operation under all conditions
  • Easily install GPUs up to 2080ti and AMD GPUs up to Vega 64
  • Stop the noise of your fan with just the push of a button

NZXT’s C650 power supply is the perfect solution for your next build, supporting GPUs up to 2080ti and AMD GPUs up to Radeon VII. With 650W of continuous power, it’s great for any case that conforms to the ATX standard. The C650 is also SLI and CrossFire Certified, making it ideal for multi-GPU configurations. This 80+ GOLD certified power supply is reliable and efficient, ensuring optimal performance and quieter operation.

This unit is capable of delivering up to 650W of power, making it perfect for powering high-end hardware like the Ryzen 9 3900X. And thanks to its Zero RPM Fan mode, it operates completely silently under low-load conditions. Its modular design allows you to use only the cables you need, ensuring a cleaner installation and less clutter.

Plus, its built-in safeguards provide reliable power delivery and peace of mind. This reliable unit delivers superior performance and sleek style, thanks to its sleeved cables. Plus, it’s built to last, with heat-resistant and fraying-resistant cables that add durability and longevity.

6- Seasonic FOCUS SGX-650

Seasonic FOCUS SGX-650 Power Supplies For Ryzen 9 3900X
  • Comes with an adapter kit for easy installation
  • Customizable power supply with SFX and ATX mount
  • Operates at 0-50°C with derating as needed
  • Patented S3FC capacitor design for power efficiency
  • Seasonic hybrid fan control to optimize cooling requirements

This Seasonic FOCUS SGX-650 is perfect for compact builds, with a size of 125 mm (L) x 125 mm (W) x 63.5 mm (H). It’s also fully modular, so you can use only the cables you need to reduce clutter and maximize airflow. The FOCUS SGX-650 features 80 PLUS GOLD certification, meaning less energy gets wasted during power conversion and you can save money on your electricity bill. 

This premium power supply features hybrid fan control, allowing it to operate in fanless mode, silent mode, or cooling mode. And with its 650 watts of power, it’s perfect for powering Ryzen 9 3900X processors. This 650-watt powerhouse is fully modular, so you can tailor it to your exact needs. It features an ATX12V design, so it’s perfect for gamers and professionals alike. Plus, with its sleek black finish, the FOCUS SGX-650 will look great in any PC case.


The Ryzen 9 3900x processor is a powerful computer. So, it’s important to find a power supply unit that can keep up.This list is to help you pick the best power supplies for Ryzen 9 3900X for your needs. It doesn’t matter what your budget is, there are great choices out there.

There is no doubt that having a high performance PSU is important for people who love gaming and technology. However, it can be difficult to find the best power supplies for Ryzen 9 3900X. After reviewing the top power supplies, I found that the best one for a Ryzen 9 3900X processor is the Corsair RM750X

The Corsair RM750X PSU is a great choice for a power supply. It has a compact construction and a smart fan that keeps your system cool. It also comes with modular cables and its lightweight design is really nice.