We independently research, test, review, and recommend the best products. As an Amazon Associate we earn from qualifying purchases.

Best PSUs for RTX 3090 Ti (650W, 750W, 850W, 1000W, 1250W)

The powerful rtx 3090 ti graphics card requires the best psu for rtx 3090 ti to run at optimal power with security that will not fry them when things are pushy. This is why the recommended PSU for RTX 3090 ti are here to serve you the power you need.

It is wise to opt for something that is not too high like 1200W and not appropriate to choose a PSU that barely keeps your rig going. So to choose from this category, which is the best-selected company, you do not have to risk your PC to save a small amount of money.

There are some products that are less than 800W with a lesser rating than Gold, they are for previous versions of graphics cards that do not require this much power to run. For RTX 3090 TI, you need to get at least Gold rating with 92% efficiency rating.

In order for the GPU to perform its best, your system depends on the PSU you are going to choose. With 120mm fans that are programmed to give you the noiseless operation that is required for you to focus on the work. No problematic noise will disrupt your peace and you can be more productive.

Having the ATX form factor will allow you to easily install it in most of the ATX motherboards. If you want a more compact design, there are other options as well. Besides 100% Japanese capacitors, 12V dual rails are also present for reliable operation.

You can depend on these features without the worry of frying your system due to unstable power supply. Up to 1000W is possible in this category but you have to choose the right one for your purpose. Furthermore, the modular cabling system is the reason for an efficient venting system with easy plugging and removing of cables according to your desire.

  1. Thermaltake Power Supply PS-SPD-0700NPCWUS-W
  2. Cooler Master MPY-7501-AFAAG-US Power Supply
  3. ASUS ROG Thor 850 Power Supply
  4. Corsair CX Series (CP-9020103-NA) Power Supply
  5. Corsair RMX Series, RM850x,Power Supply
  6. Seasonic FOCUS PX-650 Power Supply
  7. be quiet! BN658 Dark Power Supply

1- Thermaltake Power Supply PS-SPD-0700NPCWUS-W

Thermaltake Power Supply PS-SPD-0700NPCWUS-W

A PSU that is both efficient and quiet is no other than Thermaltake Smart 700W 80+ White Certified PSU. This powerful unit features a single +12V rail design for stability and reliability. Coming with a 5 year warranty you will have peace of mind.

In addition to this, the 120mm Ultra Quiet Fan keeps noise levels to a minimum, making it perfect for home or office use. This is a great way to power your system and keep it running smoothly. It comes with a single +12V rail design that ensures reliable and stable performance, as well as an ultra quiet 120mm fan for minimal noise.

For users who are worried about whirring noise of fans must choose this PSU as its fan is programmed to give you little to no noise during operation. It features 700 watts of power and air cooling with the dimensions of 8.9 x 4 x 7 inches.

The minimum input voltage is 100 volts, and it has an 80 plus certification. It also has a continuous power design and comes with a 5 year warranty. This PSU has a continuous power design, meaning it can handle even the most strenuous loads without faltering.

An ultra quiet 120 millimeter fan ensures that your computer runs quietly especially when you’re trying to focus on work or school. Get peace of mind with a 5 year warranty, and upgrade your system today with the Thermaltake Smart 700W 80+ White Certified PSU!

2- Cooler Master MPY-7501-AFAAG-US Power Supply

Cooler Master MPY-7501-AFAAG-US Power Supply

Looking for a PSU that will provide reliable power and quiet cooling? Look no further than the MPY-7501-AFAAG-US from Cooler Master. Featuring a full modular cable design, this PSU is 80 PLUS Gold certified and comes with durable and silent LDB bearings.

Whether you are looking for a powerful PSU that can handle temperatures up to 45 degrees Celsius or one that offers full performance in all situations. This Gold certified PSU is 80 plus compliant and operates silently, thanks to its LDB bearing.

It also features full modular cabling, so you can customize your setup exactly how you want it. Perfect for system builders and enthusiasts alike, and if temps are an issue, don’t worry, this PSU can handle full performance even in temperatures up to 45 degrees Celsius!

If you’re looking for a reliable and stable power supply that can handle even the most strenuous of tasks, you have come to the right place. With 80 plus gold certification, you are sure to save a lot on your electricity bill without compromising on PC performance.

The flat modular cables lets you keep a neat and hurdle free airflow for the excess heat to pass out efficiently. Full bridge design coupled with LLC, synchronous, and DC to DC topology technologies, this power supply is sure to provide you with all the power you need.

Its modular cabling makes installation a breeze. An 80 plus gold certification ensures efficiency and quiet cooling with sealed LDB bearings and quiet fan blades. It also offers proven thermal resistance, making it perfect for use in temperatures up to 45 degrees Celsius.

3- ASUS ROG Thor 850 Power Supply

ASUS ROG Thor 850 Power Supply

Are you looking for a high-quality power supply that will provide clean, stable power for your PC? Then you need the ASUS ROG Thor 850 RGB. This full modular power supply has a wattage of 850 watts and comes with 135 millimeter fans for excellent cooling.

It is also 80+ Platinum certified, meaning that it is highly energy efficient. Having integrated ROG heatsinks keep your system running cooler even under heavy loads. And if that was not enough, the OLED Power Display allows you to monitor your system’s real-time power draw in detail.

Best of all, this PSU supports Aura Sync addressable RGB lighting, so you can create an ever-expanding spectrum of colors and effects across an array of lights. The ASUS ROG Thor 850 RGB Power Supply is the perfect choice for those who want a high-quality, reliable power supply.

With 80+ Platinum certification for energy efficiency and 100% Japanese capacitors for stability and durability, this power supply is sure to meet your needs. The 0dB cooling with dustproof IP5X wing-blade fans will dazzle you away.

The integrated ROG heatsinks keep your system running cool even under heavy use, so that there is no stopping you from winning. When you buy an efficient GPU like RTX 3090 ti, a perfect PSU is a must.

What can be more ideal than the ASUS ROG Thor 850 RGB Power Supply. It comes with 80+ Platinum certification, meaning it is highly energy-efficient. Additionally, the 135 millimeter fan size and 0dB cooling ensure optimal cooling performance.

When the enemies get too harsh with you, you need to unleash beast mode. That will consume more and process more heat but thanks to this PSU.

4- Corsair CX Series (CP-9020103-NA) Power Supply

Corsair CX Series (CP-9020103-NA) Power Supply

The Corsair CX650 power supply is a great choice for your new system build or upgrade. It is semi modular, so it is easy to install, and it has a 5 year warranty so you know it will last.

Consisting of thermally controlled fans ensures silent operation, even under load. Consider the 80 PLUS Bronze certification as high efficiency performance and lower operating costs. The Corsair CX Series of power supplies are semi modular, meaning that only the cables you need are connected to the power supply and it has supported by 6600 XT PSU.

As making for a cleaner looking build and upgrades, they are also 80 PLUS Bronze certified, meaning they operate at high efficiency and with less excess heat. Translating to lower operating costs, you get to save money for rainy days.

Plus, their thermally controlled fan is silent at low and medium loads to understand the computer’s needs.

The Corsair CX Series 650 Watt Power Supply is a reliable and efficient power supply that is perfect for powering your PC. This power supply features a semi modular design, which makes installation easy and clean.

With its 100,000 hour MTBF rating, this power supply is sure to last long. An 80 PLUS Bronze certified power supply is highly efficient, so you can rest assured that your system will stay cool and quiet during regular operation.

5- Corsair RMX Series, RM850x,Power Supply

Corsair RMX Series, RM850x,Power Supply

The Corsair RMx Series, RM850x PSU is fully modular, meaning you only connect the cables your system needs. This 850 watt power supply is also 80 Plus Gold certified for lower power consumption, less noise and cooler temperatures.

With a compact size and zero RPM fan mode, this PSU is ideal for near silent operation at low to medium loads. With 100 percent industrial grade Japanese capacitors, it ensures unwavering power and reliability under heavy use.

Is your computer struggling to keep up with your energy-hungry lifestyle? Give it a power boost with the Corsair RMX850x PSU. This reliable and efficient power supply delivers 850 watts of juice to your system.

This way you will never have to suffer from an underpowered machine again. Having a fully modular design means you only connect the cables your system needs, making for a neater and cooler looking setup.

And if noise is a concern, don’t worry, the RMX850x has a Zero RPM fan mode that ensures near silent operation at low to medium loads. Do you want a PSU that can handle all your power needs, while also being quiet and cool? Look no further than the Corsair RMX Series, RM850x!

This 850 watt PSU is 80 Plus Gold certified, meaning it consumes less power and emits less noise than other PSUs. It’s also equipped with Zero RPM fan mode, which means the fan will stay off until the load reaches a certain point.

Furthermore, 100% industrial grade 105°C rated Japanese capacitors provide unwavering power and reliability. Fully modular cables make connections easy and allow you to only connect the cables your system needs.

6- Seasonic FOCUS PX-650 Power Supply

Seasonic FOCUS PX-650 Power Supply

Looking for a power supply that is both compact and fully modular? This unit measures just 140mm deep, making it a perfect fit for all ATX systems. The 80 PLUS Platinum certification ensures that you will be using less energy during power conversion.

On the other hand, the premium hybrid fan control lets you customize your cooling needs. With a 10 year worry-free warranty, you can rest assured that this PSU will last for years to come.

Seasonic is proud to introduce the FOCUS PX-650 power supply. This high-quality unit is 80 PLUS PLATINUM certified for energy efficiency. It features a full modular design for use only with the cables you need.

The premium hybrid fan control, allowing users to customize cooling needs by selecting various modes. To accommodate your needs, choose between Seasonic S2FC fan control without Fanless Mode whereas S3FC includes Fanless Mode.

Moreover, this power supply is 140 mm deep, making it compact enough to fit in any system. It comes with a full modular design that allows you to use only the cables you need. Keep the rest inside the box to reduce clutter on your desk and behind the system.

Plus, with an 80 PLUS platinum rating, you will be wasting less energy during power conversion. It means lower electricity bills and a smaller carbon footprint. If cooling needs ever change, the fan control button at the back of the unit lets you easily switch between various modes.

A compact and eco-friendly PSU will keep your system safe to use and longer in its usage for years. This platinum-rated power supply features full modularity, allowing you to use only the cables you need for a clutter-free ventilated system. With silent performance in fanless mode is ideal for those who want a quiet computing experience.

7- be quiet! BN658 Dark Power Supply

be quiet! BN658 Dark Power Supply

The be quiet! Dark Power 12 PSU is a high-quality power supply that provides 1000 watts of power. Making it perfect for gamers and enthusiasts who require reliable, stable power. This PSU features air cooling with a Silent Wings fan for virtually inaudible operation.

It comes with an overclocking key that allows you to switch between dual twin 12V rails and one massive 12V rail. Additionally, the modular cable management system ensures the highest convenience and flexibility. Reducing the clutter is a positive point of this system that will also improve airflow.

If you are looking for a powerful and efficient power supply that will be virtually silent, look no further than the be quiet! Dark Power 12 PSU. It features an 80 PLUS Titanium rating, meaning it operates at up to 95.8% efficiency.

Thanks to a patented frameless Silent Wings fan for near-silent operation. You can also switch between multiple 12V rails and one massive 12V rail to accommodate your overclocking needs.

With modular cable management, it is easy to keep your cables organized and out of the way. This PSU is environmentally friendly and saves you money in the long run. Additionally, its Silent Wings fan ensures virtually inaudible operation, while the full mesh front has redesigned funnel shape air inlet.

These openings uphold high air circulation abilities. Additionally, the modular cable management system provides maximum convenience. Being in ATX form factor, it will fit most of the motherboards with the same form and dimensions.

Best PSUs for RTX 3090 Ti Buying Guide

Choosing the capable PSU for your RTX 3090 ti is essential in order for it to work efficiently. It consists of 12V rail, multiple fan modes and years of warranty for it to be fit enough to run the latest video card on user’s demand.


The wattage that is used for the GPU must be above 750W rating because this video card requires double the peak power such as 360 x 2. It consumes 720 watt maximum so your requirement should be at least 800 watts. Even if you have a platinum version of a 600W PSU, it will not work.


This is one of the flexible features you have where you can manage to choose the right cable management for you. Fully modular lets you detach any cable you want and keep the rest attached with the unit.

Whereas semi modular cabling enables some of the wires that can be removed from the unit and kept in the box. This will help you reduce cable clutter and improve the airflow on the PSU.


Having 140mm fan size maximum with curved fan blades and 0db quiet cooling is a necessary part of your PSU selection. As the GPU like RTX 3090 ti will keep you involved in the game, you do not want any noise distracting you. Nor do you want the rig to heat up when you push the card to its limits.


You are sure to need the best certification that will make your power trouble free and does not get wasted in the way. There is Bronze, silver, gold, platinum and titanium certification that makes your PSU eco friendly.


Thanks to 100% Japanese capacitors that offer you long lasting durability in its  build. This way it will run for years without a scratch and give you more hours of power compared to this feature not present in them.

Form factor:

Although the form factor is mainly for putting the PSU on the rig, a compact form factor allows you to keep it in less space. On the other hand, ATX form factor will take more room but if your selected PSU is this form, it better be compatible with all the ATX motherboards.

Also See :

Leave a Comment