The Best Power Supply For RTX 3090 In 2023

The top-tier GPU of yesteryear, the RTX 2080 TI, is far less demanding than the upcoming RTX 3090. The greatest PSU for RTX 3090 (Amazon) ti is necessary for the strong GPU to operate at peak performance with safety. Power output, performance rankings, as well as the calibre of the hardware, vary among PSUs. That’s why the RTX 3090-ti suggested PSU is available to provide you with the power you require. Check out the latest power supplies for RTX 2060 In 2022

John Bob – Canadian computer analyst says always invest well for buying the best power supply for RTX 3090. For the RTX 3090, just the latest power supply unit will do; outdated or insufficient power supply units won’t work properly with NVIDIA’s new PSU. I’ll go over the factors you should take into account when selecting a PSU for RTX 3090 GPU in this post. Check out the most demanded power supplies for Ryzen 9 5900x In 2022

Buying Guide For Best Power Supply For RTX 3090

Fast processing Fan required!

Your PSU selection must include a least 140mm fan size featuring curved fan blades & 0db quiet cooling. You would not want any noise to distract you from the game because a GPU like the RTX 3090 ti will maintain your interest in it. When you force the card to its limitations, you also don’t want the system to get hot.

Durability is the foremost thing

All Japanese capacitors used in the construction provide long-lasting durability. In this manner, it will operate for many years without breaking and provide you with additional power hours than if they did not have this feature.

Wattage varies to model

Because this video card needs double the peak power, including such 360 x 2, the wattage used during GPU should be above 750W. Since its maximum power consumption is 720 watts, your demand must be at least 800 watts. It won’t work regardless if you have a 600W PSU in platinum form.

Required Form factor

Even though the form factor is primarily used to mount the PSU on the system, a small form factor enables you to store it in a smaller area. However, if you choose an ATX form factor power supply, it must be interoperable with all ATX motherboards because it will take up more space.

7 Best Power Supply For RTX 3090 In 2022

Keep reading below:

Staff Pick
NZXT C850 - NP-C850M
NZXT C850 – NP-C850M (Image credit: Amazon)

NZXT C850 – NP-C850M

Best Value Power Supply for RTX 3090


Brand: NZXT | Fan Size: 120 Millimeters | Wattage: 850 Watts | Cooling Method: Air | Design: Full Modular | Weight: 4.00 Pounds | Form Factor: ATX


Waiting is taking too long.

Weak inrush voltage

Fully Modular in all respects


It can become fairly noisy

Never before have I seen a Power supply unit bundled so well. The best power supply currently available for the 5950X & RTX 3090 is NZXT’s C850. NZXT aims to be among the most amazing system part manufacturer and has been in business for more than a year.

It has an 850W output and an 80 Plus Gold grade that indicates it can reduce electricity use by up to 90%. There really is no RGB led, notwithstanding the power supply being touted as one for gamers. Although there are air vents on each side and an excellent overall appearance. The NZXT E850 is comparable, except it missing CAM digital integration.

Power supplies like the NZXT C850 Gold can be set up in a variety of ways. There are also 650W & 750W models available. The C850 PSU from NZXT maintains outstanding voltage management whilst providing 850 watts of power at 12V.

Some other benefits for customers

In addition, this best PSU for 3090 2022 is so strong, uncomplicated, smooth, and suitable weight for the size. The wires are well made and designed, and I connected them without any issues. 

It can’t compete with some other PSUs in load regulation & hold-up time because of the smaller bulk capacitors. The company leads the industry since it offers some of the most amazing things. Such cables are shielded, which improves both their attractive appearance and sturdiness.

Why do I recommend it?

The greatest PSU I’ve ever seen is this one. Never before have I seen a power supply wrapped with such care. The quality of this thing is outstanding. When using a PSU tester, everything is in order.

Although it was my preferred and most expensive modular power supply, it was straightforward to set up. I’ve seen several wonderful power supplies, but this is by far the most amazing.

EVGA SuperNOVA 850 P2
EVGA SuperNOVA 850 P2 (Image credit: Amazon)

EVGA SuperNOVA 850 P2

Best 850W Power Supply for RTX 3090


Brand: EVGA | Fan Size: 140 Millimeters | Wattage: 850 Watts | Cooling Method: Air | Design: Full Modular | Weight: 7.9 Pounds | Form Factor: ATX


The terminals have labels on each cable.

Black, completely braided cables are all backed by a 10-year warranty.

Has a bag for storing leftover parts


ECO mode is not for gaming

EVGA SuperNOVA 850 P2 is a full 5 metal classes higher than my old Copper, making it at least two or three civilizational periods more effective. Because it is completely modular, a single wire for the floppy discs or other devices I didn’t use before doesn’t need to be hidden away in the case’s base, where no one can see it anyhow.

Now offered at 850 Watts, the EVGA SuperNOVA P2 auxiliary power range offers unrivalled functionality. This unit, which is based on highly acclaimed P2 power supplies, offers 80 Plus Platinum rated performance and clean, uninterrupted power to all components. But seriously, a ten-year warranty. That is strong as their support for the component, which is important.

When operating at low to medium loads, the ECO control fan solution enables fan modes that produce zero fan noise. Additionally, it is supported with a 10 Year Prize-Winning, 100% Japanese Capacitor Technology. My only request is that the PSU be smaller. Make absolutely sure you have enough room because it hardly fits in my meshify fractal architecture.

Some other benefits for customers

The performance and value of the EVGA SuperNOVA best power supply for 3090 and 5950x are unmatched. The PSU has a premium yet lightweight feel. The enclosure for this 1000W PSU is a tad bigger than the standard PSU size. Nowadays, 1000W is something to think about if you want to prepare for future updates.

The Eco mode is the lone downside, which theoretically should result in less total power consumption and a quieter construction. Actually, it functions flawlessly till you require more juice. The switches simply can’t be produced by this power supply frequently enough. So expect to have sporadic shutdowns while using Eco mode.

Why do I recommend it?

My initial impressions were excellent right away! Even with the packaging, the appearance is extremely good. It uses power 3 percent more effectively, presumably. 

 This source of power is purely a luxury source. There is a stronger, less expensive supply, but this one is designed to resemble a Mercedes Benz from the 1970s. Solid luxury but at a cost. EVGA appears to have top-notch design & materials. Recommended!!!

Budget Pick
Thermaltake Toughpower GF1
Thermaltake Toughpower GF1 (Image credit: Amazon)

Thermaltake Toughpower GF1

Bst Overall PSU for RTX 3090


Brand: Thermaltake | Fan Size: 140 Millimeters | Wattage: 750 Watts | Cooling Method: Hydraulic / Air | Design: Full Modular | Weight: 5.5 Pounds | Form Factor: ATX


Flat cables with a low profile for improved cable management

0dB conditioning mode in silence

Hydraulic bearing fan 140 mm


Wires take too much space

The Gf1 Series is optimised to operate with all Intel CPU versions to save the most energy possible and deliver up to 90% performance. The best stability, longevity, and dependability are provided by the 105°C (221°F) Japanese capacitors, which are 100 percent high quality.

When comparing models, this beauty had the best price-to-reputable-brand ratio and high review ratings because it was accessible on the same day. I’m happy with it quite a bit. Under stress tests with the entire system loaded, the 12V line has remained between 11.98 to 12.02.

Japanese capacitors, a 140mm hydraulic bearing fan, as well as other high-end parts are included in the series to assist offer consistent and reliable power. 

A power spike would likely travel straight through the PC if there was one. To safeguard everything, as with this power source, you would need an external surge protection device.Our equipment would be powered without needing to be concerned about voltage changes and reliability issues if ripple noise is kept under 30mV. 

Some other benefits for customers

Overall, this is a cost-effective power supply with exceptional performance, capable of driving a top-tier GPU such as the RTX 3090. Be aware that the GF1 is a simple but excellent PSU. Moreover, it is far lower than most requirements and has a near-Platinum performance.

For all of us who are preoccupied with electrical wiring and maintaining our systems cool, the GF1 is among the better solutions. As long as we don’t choose an i9 or Threadripper CPU, it delivers enough power to satisfy Nvidia’s power needs for the RTX 3090 and is economical enough even to keep the electricity cost in check.

Why do I recommend it?

I’ll be upfront about this: I purchased the power supply. If I hadn’t needed it right then, I might have purchased another EVGA, as I’ve done for the past ten years or so, simply because I adore nearly everything the company produces. Having said that, I’ve changed my mind because I’m so pleased with this power supply!

Though I enjoyed it, I had to go back. For my mobo power, an 8-pin along with a 4+4 were required. This PSU is designed for boards with less power and the typical 24 with 8 or 4-pin connectors. I am extremely quiet and nicely wrapped. I ought to have done a more in-depth investigation.

Corsair RMX Series
Corsair RMX Series (Image credit: Amazon)

Corsair RMX Series

Best 750W PSU for RTX 3090


Brand: Corsair | Fan Size: 135 Millimeters | Wattage: 750 Watts | Cooling Method: Air | Design: Full Modular | Weight: 4.57 Pounds | Form Factor: ATX


Full power is accessible at 47 degrees Celsius.

Completely compatible with ATX v2.52

Outstanding performance as a whole

Silent under light and medium loads


Measurements of the Power Factor are not as high

Minor rails with reliable OCP triggers

I need a quiet PSU, but this one is just ideal because my old PSU makes a tractor-like noise while it’s operating at full capacity. It’s simple to install and the quality appears to be nice. Corsair made the decision to significantly alter their RMx line, among the most popular today.

The design language & logo of Corsair have been modified. Technology has advanced as well, enabling the creation of quieter fans & influencing more customers to value PSU efficiency.

Check out the Ryzen 5 5600x best power supplies In 2022

The best power supply for Ryzen 9 5950x from Corsair takes pride in creating a sturdy power source. Cybernetics has evaluated the whole RMx series. Adding and removing unnecessary connectors is made simple by the wiring system’s modular design. Considering that the present RMx units have only been in operation for 3 years and have worked brilliantly, the task is challenging.

As a result, each version in the redesigned RMx series needed to undergo separate testing, as well as tests for both 115V and 230V units. The RM750x is 80+ Gold certified, has a 5-year warranty, and uses less energy while running cooler & quieter.

Some other benefits for customers

This Best power supply for RTX 3090 has been wonderful. There isn’t even a coil whine. In this instance, Corsair evaluated their new RMx units using Cybenetics’ efficiency & noise test suites. Overall efficiency is not at all efficient because it can only be improved under heavy loads.

Why do I recommend it?

Overall, the performance is superb. Both the power supply and its modularity are trustworthy. The MB 6-pin cables are substantial but flexible. Except when you’re trying to spin them, the flat, unyielding SATA power wires are not an issue.

Check out the Ryzen 9 5950x power supplies In 2022

Although the in-cable converters are a bit of a hassle to work with, I’m still quite happy with this unit’s efficiency. If my problem is fixed, I’ll quickly return to a rating of five stars. In any case, this is a terrific tool. It is quiet and powerful despite its small size.

Best Pick
ASUS Rog Thor 1200
ASUS Rog Thor 1200 (Image credit: Amazon)

ASUS Rog Thor 1200

Best 1200W PSU for RTX 3090


Brand: ASUS | Fan Size: 135 Millimeters | Wattage: 1200 Watts | Cooling Method: Air | Design: Full Modular | Weight: 0.018 ounces | Form Factor: Micro ATX


Feels really high-end

Comes with specialised cable sleeves

Connectors and zip pins to help you organise your cords


Direct colour customization is not possible

The initial ROG power supply is the ROG Thor 1200W Platinum. It has an OLED power indicator, a 135mm wing-blade fan, and 100% Japanese capacitors. Installable Aura RGB LEDs are already incorporated inside the ROG Thor 1200W Platinum, prepared for you to customise its appearance. 

The 1,200-watt power supply also incorporates Aura Sync for illumination synchronization with a large Aura ecosystem, as well as supports RTX 3090 power supply calculator.

Even the packaging gives off the impression that this PSU is a precious property that I should be proud to own. Aside from that, this item looks wonderful, is simple to install, and has full modularity, and that is a nice touch. I was accustomed to my previous, low-cost CORSAIR CX 750W PSU, but I won’t ever use Corsair once more.

It is simpler to manage the wires you really need and avoid the ones you do not even thankful for the entirely modular design. Even though some of the cables are rather thick, they are all braided and feel comfortable to handle. Additionally, a small bag is included to hold all the extra cords, allowing you to stow them in the closet & put the device away.

Some other benefits for customers

This makes it possible to operate at a lower temperature, improving component lifespan and enabling 0dB operation much after traditional designs would need to turn on their fans. The integrated ROG heatsinks are 20% cooler within the ROG Thor 1200W Platinum thanks to their 2x larger capacity than conventional designs.

The fact that you can add intriguing, decorative components to this PSU, such as a magnetic ROG Strix logo, makes it unique. As I use a PSU shroud, I really don’t care, and if you’re looking for a PSU that looks good, that one was a great alternative.

Why do I recommend it?

It’s a Super Star power supply in performance! Although 1200W would be excessive (particularly for RTX 3080/3090), I thought such a need to “future proof” my Supply in case new components come out.

Up until the instabilities after attaching to the ARGB 3-pin mobo header, the product has behaved correctly. I was surfing and found this stylish PSU that fits my customized ASUS PC wonderfully. Overall, I’m pleased with it.

Seasonic FOCUS Plus 750
Seasonic FOCUS Plus 750 (Image credit: Amazon)

Seasonic FOCUS Plus 750

Best 750W PSU for RTX 3090


Brand: Seasonic | Fan Size: 120 Millimeters | Wattage: 750 Watts | Cooling Method: Air | Design: Full Modular | Weight: 1.6 Kilogram | Form Factor: ATX12V


The small design of 140mm

Three-stage silent fan control with a quiet mode

Full modularity and connectors coated in gold


Freeze lockup faced by some customers

The Seasonic FOCUS Plus 750 has a highly optimized smart cooling system that is controllable by a switch at the rear of the power supply. Given that the majority of other devices have two-stage fan control, that’s one of the power supply’s more distinctive features.

Even though this Power supply unit is among the tiniest in our selection, it isn’t any less effective. The Focus Plus 750 actually provides a great deal of power for its size without having a cooling issue. To ensure the utmost quiet, Seasonic even includes its unique three-stage fan control settings.

I’m really pleased with the calibre of Seasonic’s work, from the product’s packing to the PSU’s construction. The wires and the PSU were both wrapped in separate canvas sleeves. It radiated quality; I’m not sure how to describe it. I adore the product and have become a lifelong supporter of Seasonic.

Some other benefits for customers

The Focus Plus is a very effective power supply for 3 RTX 3090 that provides consistent power with few ripples and variations. The load balancing of the +12V rail won’t be an issue. Consumer-grade CPUs like the i7 and Ryzen 7 are the ideal match for this PSU. Thus, this power supply for RTX 3090 is so pleasing for customers.

Why do I recommend it?

I had been looking for a new power supply unit for a while and was struggling to figure out which manufacturers offered the greatest value. I decided to try Seasonic after a buddy suggested it. When I was running graphically demanding games, my system would frequently reboot, which was really starting to annoy me.

Bring on Seasonic! I replaced the old Supply, reconfigured the computer, and presto! Stop restarting. I was quite pleased with Seasonic’s work’s calibre.

Corsair SF Series, SF750
Corsair SF Series, SF750 (Image credit: Amazon)

Corsair SF Series, SF750

Best SFX Power Supply for 3090


Brand: Corsair | Fan Size: 92 Millimeters | Wattage: 750 Watts | Cooling Method: Air | Design: Full Modular | Weight: 1.98 Pounds | Form Factor: SFX


92 percent or more efficiency

RPM cooling mode of zero

Cables with only one sleeve for improved cable management


I object to the weak modular cable.

Advantageously, the cables are sleeved in decent quality for slapping in. By no means is it a boutique bespoke sleeved cable, and those wanting to insert cable combs will find the cable routing annoying. In the end, I simply packaged and tied all the wires in my K77; the trademarked Velcro strips that are included are a lovely touch.

Similar to the original Corsair RM850 power supply I was using for this setup, this pc is currently carrying the load beautifully and is essentially silent. Although I was afraid to reduce my PSU’s wattage so drastically, I felt 600W was sufficient. Additionally, the separately sleeved wires are a great touch. All I want is for this power supply to last.

For me, that was a little bothersome even though 30 percent would still move some air and be perceived as “quiet.” I wish there was still a switch for this mode on the power supply. Even a simple dip control by the modular connectors would be possible.

Some other benefits for customers

Superior, separately sleeved cables with a stretchy paracord sleeve are standard on SF Platinum Series power sources. You must depin the connections to reroute the cable if you want to have any hope of a clean 24-pin cable connection.

If SFX aficionados pair the RTX 3090 with something less power-hungry CPU, like such a Ryzen 7, the SF750W is perfect for them. However, the cost is extremely high. Additionally, this compact gadget is completely modular, and the wires it includes are equally thin. Since they are each individually sleeved, even in the smallest spaces, excellent cable management is simple to achieve.

Why do I recommend it?

My new SFF builds, which include a 5600x as well as an MSI 3070 Ti, are powered by this. While they suggest a 750, the sf750’s pricing is outrageous, and I prefer these cords to the cooler master PSU. I’ve had no issues with my computer; this power supply easily handles both gaming and movie playback on my rig.

If your GPU requires more than two 8-pin PCIe connectors, you’re going to need a more robust one. This power supply has the best-looking sleeved cables I’ve seen before, and it operates quietly. Decent value!

Frequently Asked Questions

What power supply is best for RTX 3090?

Corsair RMX Series is the best power supply for Ryzen 9 5950x from Corsair takes pride in creating a sturdy power source. Overall efficiency is not at all efficient because it can only be improved under heavy loads.

What power supply do I need for 4 RTX 3090?

For NVIDIA GeForce RTX 3090 Ti, we recommend 80 Plus Gold 1000W and higher PSUs. The recommended power supply size that Nvidia advises is 850 watts, a 100-watt rise from the initial GeForce RTX 3090 need.

Is 1200W enough for 3090 TI?

According to a recent leak, specific Nvidia GeForce RTX 3090 Ti Graphics cards need a staggering 1200 watts of power to operate. Customized RTX 3090 Ti configurations may consume 1200W from two 16-pin connectors. Some design GeForce RTX 3090 Ti GPU from EVGA & Galax have been made public. They require at least two 16-pin PCIe 5.0 power adapters (12VHPWR). The unusual power configuration makes it possible for the GPU to draw up to 1200W.

What power supply is best for RTX 3080?

While the RTX 3080 requires a 750W power supply, NVIDIA tested a setup using an Intel Core i9-10900K CPU from the 10th generation (CPU). With a TDP of 125W and a pretty large Processor, it might just be possible to get by with something more like 650W, particularly if the PSU is brand-new. However, this will depend on your particular system configuration.

Do I need 1000W for RTX 3090?

For NVIDIA GeForce RTX 3090 Ti, we recommend 80 Plus Gold 1000W and higher PSUs. The latest RTX 3090 Ti has officially launched, providing a resolution to the power consumption debate. The specification sheet states that MSI advises a 1000W PSU and attaches through three 8-pin adapters, which is 150W beyond what was required by its predecessor.

Final words – Last but not least

Remember that the power supply—which must function effectively—is what keeps everything powered. Power alterations, crashes, or even worse, are not what you want. Instead, you desire power that is given effectively, minimal warmth, and maximum PC protection. Power output, efficiency rankings, and even the calibre of the hardware vary among PSUs.

Our top pick: Corsair SF Series, SF750 – The SF750 SFX power supply for 3090 is Platinum-rated and has a lot of power for its size. The 92mm is effective at controlling temperature, but Corsair even included a Zero RPM cooling mode. 

Furthermore, all the essential safety measures that we would anticipate from a high-end power supply are included without any scrimping.

As long as you accurately account for the power needs of your processor, any power supply from this list will indeed be able to power this top-tier GPU. So be sure to evaluate all the specifications and pick the PSU from our list that is best for your system. 

Finally, you may visit Nvidia’s website to find out more information about just the RTX 3090. We hope that our detailed review regarding the best power supply for RTX 3090 will definitely help you a lot when choosing.

Happy shopping!