Best PSUs for RTX 3090 Graphics Cards

Simply the best PSU for RTX 3090 graphics cards will do; NVIDIA’s new top range graphic card won’t passage well with underpowered or antiquated power supply units (PSU). They can prompt accidents and in general framework shakiness, and in case you’re dishing out in excess of a fantastic on new equipment, you would prefer not to hold back somewhere else.

NVIDIA recommends a 750W PSU for the RTX 3090, which is the thing that we’ll zero in on in this assortment.

The monster jump produced using the RTX 2000 to RTX 3000 included some major disadvantages: high force necessities. This is particularly obvious with regards to the RTX 3090 GPU, which is Nvidia’s behemoth with more than 10,000 CUDA centers and 24 GB of GDDR6 memory.

To exploit all that crude force and concentrate each ounce of execution from the Ray Tracing and Tensor centers we need energy. Along these lines, in this article, we have explored the best PSU for Nvidia RTX 3090 graphic cards.

List of Best PSU for RTX 3090

Here are our top picks for the rtx 3090 recommended psu 2021.

  1. GAMEMAX RGB750-Rainbow Power Supply 750W (Best Overall PSU For 3090)
  2. EVGA SuperNOVA 850 P2, 80+ PLATINUM 850W Power Supply (Recommended PSU For RTX 3090)
  3. EVGA Supernova 1000 P2 1000W Power Supply (Budget PSU For NVIDIA GeForce RTX 3090)
  4. NZXT C850 850 Watt ATX Gaming Power Supply (Cheap Power Supply For RTX 3090)
  5. ASUS Rog Thor 1200 1200W Fully-Modular RGB Power Supply (Affordable PSU for RTX 3090 Graphic Card)
  6. Corsair RM850x 850 Watt Fully Modular Power Supply

1. GAMEMAX RGB750-Rainbow Power Supply 750W (Best Overall PSU For 3090)

GAMEMAX RGB750-Rainbow Power Supply 750W

I accept that in the event that you are picking a decent solid force flexibly for a very top of the line graphic card, at that point you ought to get an 80 Plus Gold evaluated power unit. While the majority of the mainstream brands offer pricey PSUs, Gamemax offers a much less expensive 750 watts RGB power supply for under $130.

The RGB 750 Rainbow PSU from Gamemax is despite the fact that not as ground-breaking as the ones I have recorded beneath it however clearly will be sufficient for providing all kinds of voltages to your segments including the RTX 3090 without getting shy of wattage limit. This PSU is completely particular and accompanies a 140mm RGB fan and a controlling catch on it that can switch between 25 distinctive lighting modes.

Try not to stress over the 12 pin connector on the RTX 3090 as it will accompany an included connector that changes over double 8 pin power connector to a 12 pin connector for simple stopping. Each force gracefully on this rundown will have the option to control up the RTX 3090 with no issue and this is also compatible with RTX 3080 GPU.

2. EVGA SuperNOVA 850 P2, 80+ PLATINUM 850W Power Supply (Recommended PSU For RTX 3090)

EVGA SuperNOVA 850 P2 Power supply

The SuperNova P2 line of PSUs is a top notch class pointed towards fans that wouldn’t fret spending somewhat more for quality. At first, the 850W P2 power flexibly was planned for PC frameworks that were assembled utilizing two gaming graphics cards and this is also perfect for Crypto Mining. As per EVGA, their PSU could control up to two GPUs as long as every one would require under 300W. This implies that the P2 has enough squeeze for the RTX 3090 that requires 350W all alone, just as an overclocked i9 or Ryzen 9 processor.

Other than being appraised with Platinum, the P2’s primary spotlight is on an excellent +12V rail plan that is equipped for conveying the psu most extreme yield completely all alone. The minor rails then again are marginally more vulnerable than what we see in different PSUs, however they’ll actually be sufficient for a top of the line framework.

Also, the P2 is totally measured, so we can utilize just the links we need contingent upon our framework. This component may build the cost of the PSU however great the link the executives is surely worth having. Add that to the inactive cooling mode that can be alternatively empowered, and we have a quiet and proficient PSU.

3. EVGA Supernova 1000 P2 1000W Power Supply (Budget PSU For NVIDIA GeForce RTX 3090)

EVGA SuperNOVA 850 P2, 80+ PLATINUM 850W Power Supply

The Supernova P2 is an extreme decision for any top of the line gaming build that requires a huge wattage limit and a crazy force proficiency. While 80 Plus Gold is adequate for any PC, Platinum PSU is better as far as use of intensity and creates less warmth.

The 1000W P2 Platinum power gracefully is an excellent decision for a PC that utilizes RTX 3090 or some other top of the line graphic card. With 1000W you can undoubtedly update your PC at whatever point you need to whatever part you need including a two way Nvidia RTX 3090 which I thoroughly don’t suggest.

It is a completely secluded force gracefully with 6x 8-pin PCI-E connectors. It gives very nearly a 1000W force yield on the +12V rail with 83.3A of current. As it is more force effective than a Gold evaluated PSU, you can expect the force productivity of up to 92% on Typical loads and significantly more. With a sticker price of around $300, this will raise your PCs cost a smidgen yet it is the thing that I suggest for a PC that utilizes RTX 3090.

4. NZXT C850 850 Watt ATX Gaming Power Supply (Cheap Power Supply For RTX 3090)

NZXT C850 850 Watt ATX Gaming Power Supply

The C850 is sufficient to control a framework running with the Ryzen 9 3950X or i9 10900K processor joined with the RTX 3090 cpu. It’s amazing, effective, and reduced, be that as it may, it falls somewhat short when contrasted and different PSUs in a similar classification, for example, the Corsair RM850x.

Its minimal size and measured quality are incredible for link the executives, yet this implies that the cooling fan can’t be huge, and it isn’t. With simply a 120mm fan, the C850 turns out to be fairly boisterous when working near full burden. Thus, the zero clamor fan mode just works during extremely light errands, delivering it almost futile.

Another significant disadvantage is the value range. We can discover comparative PSUs at a less expensive cost. This is conceivable because of the observing programming that accompanies the force flexibly being calculated into the expense.

It is to be sure a valuable utility, however there are different methods of checking the force flexibly. All things considered, you should search for the C850 when it’s offered with a rebate since it’s a strong PSU sponsored by a 10-year guarantee, yet somewhat overrated.

5. ASUS Rog Thor 1200 1200W Fully-Modular RGB Power Supply (Affordable PSU for RTX 3090 Graphic Card)

ASUS Rog Thor 1200 1200W Fully-Modular RGB Power Supply

As the name recommends, it is a no-bargain PSU for the vast majority of the very good quality gaming PC manufactures. From execution to feel, it doesn’t neglect to bid the vast majority of the lover PC manufacturers. The best thing about this PSU is that it really looks so great that you would prefer not to conceal it in the PSU cover.

It has an entrancing ASUS ROG Logo with RGB lighting and a RGB LED strip adjacent to it. Indeed, even the wattage limit ‘1200W ‘ composed on it is utilizing an OLED show. It’s a completely particular PSU with 4x 8-pin PCI-E connectors and links, 2x 8-pin CPU connectors and links and a ton of extra link connectors for different frill. The links that accompany this unit are sleeved simply like the links that CableMod sells and there will be link searches accommodated flawless link the board.

It has an IP5X wing-sharp edge fan that is generally utilized on Asus ROG graphic cards with a 0dB mode for totally quiet activity. It has crazy specs that incorporate a solitary +12V rail with up to 100A of current and up to 25A current on +3.3V and +5V rails.

With 1200W I am certain you won’t have to move up to some other PSU regardless of what you use and as it is an 80 Plus Platinum guaranteed unit, you can expect power effectiveness higher than 90% pretty much every time on each sort of burden.

6. Corsair RM850x 850 Watt Fully Modular Power Supply

Corsair RM850x 850 Watt Fully Modular Power Supply

Corsair keeps on being at top on the PSU market and the RMx line-up demonstrates that. The RM850x is an amazing yet productive force gracefully that can convey its whole burden through its single +12V rail. Notwithstanding, the minor rails are great, conveying 150W of intensity consolidated, which is a significant pointless excess for the present frameworks.

This completely particular PSU is more modest than others in its classification, estimating 160mm long. This permits us to fit it snuggly into an assortment of Micro PC cases and utilize just the links we need. In any case, the links themselves don’t twist effectively at the closures, so the case should be spacious enough to permit agreeable link the executives. Luckily, the seclusion empowers us to supplant the links with single-sleeved ones yet that would add more costs.

All things considered, the RM850x is amazing, productive, and sufficiently quiet to help the RTX 3090 up to a Threadripper isn’t utilized.


We suggest looking at the EVGA SuperSONIC P2 750W. It has a 80 Plus Platinum productivity rating to help ration energy and lessen warmth, and it accompanies a 10-year guarantee to ensure your speculation. It runs generally unobtrusively, it’s evaluated well, and it’s completely particular to help cut down on mess in your PC.

For the individuals who have a major financial plan, the hush up! Dull Power Pro 12 with 1,200W of intensity will help handle any equipment you add to your PC and will set you up pleasantly for what’s to come. It brings a 80 Plus Titanium proficiency accreditation to eliminate power utilization, and it accompanies a 10-year guarantee. Links are completely secluded so your PC case isn’t jumbled with pointless links. It’s costly, however it’s extraordinary compared to other premium PSUs out there.

Not exactly what you’re searching for? We have a pack more alternatives in our assortment of the best PSU for gaming. Also, in case you’re interested to see more 1440P gaming GPU data, look at our best graphics card purchaser’s guide.

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