What are the Best PSUs for RTX 3080 in 2022

The Nvidia RTX 3080 graphics card is a fantastic addition to any PC. You'll also need a robust power supply to get the most out of the RTX 3080. Nvidia says that you'll need at least a 750W power supply to run the RTX 3080, but the truth is rather different. A 750W PSU will only be able to supply half of the power required by this graphics card. The fact is that a 650W power supply will suffice. So you don't have to break the bank to acquire the greatest power supply for your RTX 3080 graphics card.

Meanwhile, if your motherboard is linked to a lot of power-hungry peripherals, a high-wattage power supply makes sense. However, if all you need is a power supply to run your Nvidia RTX 3080, there are plenty of solutions on the market.

Underpowered or outdated power sources might put your new RTX 3000 Series GPU at risk. To minimize system crashes or instability, it's best to choose with a dependable PSU brant. We've compiled a list of highly compatible power supply components for the RTX 3080 and 3080 Ti in this guide.

Power Requirements of Nvidia RTX 3080 Graphics Card

  • TDP: 320W
  • Recommended PSU Wattage: 700W
  • External Power Connector: x1 12-pin

The Best Nvidia RTX 3080 Graphics Card Power Supply

The most efficient and dependable alternatives are listed below:

Wattage: 650W | Form Factor: ATX | Design: Semi-Modular | Efficiency: 80 Plus Bronze | Warranty: 5 Years

power supply for rtx 3080

The Cooler Master 650W gaming power supply is the most cost-effective way to power RTX 3000 graphics cards. Because of its semi-modular architecture and 80 Plus Bronze efficiency, it's a good choice for low-cost gaming PCs.

The semi-fanless mode, which keeps the fan quiet under 15 percent load, is the most laudable feature of this product. So, if you're just surfing the web or doing typical computer duties, you won't notice the fan at all. The noise level of this PSU is 14 dBA at 50% peak load.

Cooler Master's power supply has a Silencio FP fan with an LDB bearing and an IPX6 dustproof certification. In addition, the fan is predicted to last up to 160,000 hours. Furthermore, the Dual forward / DC-to-DC architecture guarantees consistent voltage under severe loads.You receive 6AWG PCI-e high-quality cables to power up your RTX 3080 graphics card right out of the box. These are the most long-lasting power cables, with lower resistance and more efficiency.

The RTX 3080 requires an x1 12-pin power connector, but you only get x4 PCI-e 6+2 Pin ports with this PSU. To power up your GPU, you'll need to purchase an additional 6-pin to 12-pin power PCIe converter.

Overall, this PSU comes with all of the necessary safety measures, a long-lasting fan, a 5-year guarantee, and increased efficiency to handle RTX 3000 Series graphics cards.

If you don't have any additional power-hungry gear on your PC, this low-cost PSU should be more than enough to keep your RTX 3080 running smoothly.

The EVGA SuperNOVA 750 P2 is a dependable power supply for RTX 3080 and 3080 Ti graphics cards.

Wattage: 750W | Form Factor: ATX | Design: Full Modular | Efficiency: 80 Plus Platinum | Warranty: 10 Years

good psu for rtx 3080 ti

The EVGA SuperNOVA 750 P2 is completely modular and has an 80+ Platinium efficiency rating to handle Nvidia and AMD's most power-hungry GPUs. It's a completely modular power supply with an excellent price/performance ratio.

When compared to the Cooler Master 650W, the EVGA SuperNOVA 750 P2 has a performance efficiency of up to 92 percent. Furthermore, this power supply's entirely modular design allows for improved cable management and a neater appearance on your PC.

To extend the life of this device, EVGA selected high-quality Japanese capacitors. A 140mm double ball-bearing fan is also included for quiet operation under severe workloads.

Now, EVGA is a dependable brand, and if you choose this power supply, you won't need to replace it for at least a decade. This power supply comes with a 10-year guarantee to provide you piece of mind. Like the 850 P2 model, you receive x2 EPS and x6 PCIe power cords in the package.

However, because the PCIe connections are only 6-pin, you'll need to purchase a 6-pin to 12-pin PCIe power pin converter to connect this PSU to the RTX 3080 GPU. The 12-pin power adapter is usually included in the graphics card packaging.

When compared to Bronze-rated power supply on the market, the SuperNOVA 750 P2 has minimal voltage ripple and reaction time. It's a well-made power supply capable of supporting high-end graphics cards like the RTX 3080 and 3080 Ti.

The SuperNOVA 750 P2 provides the proper amount of power backup for RTX 3000 Series graphics cards with excellent caps, superior ripple suppression, load management, and semi-passive operation.

The Corsair RM750x is a high-efficiency power supply for the RTX 3000 series of graphics cards.

Wattage: 750W | Form Factor: ATX | Design: Full Modular | Efficiency: 80 Plus Gold | Warranty: 10 Years

efficient Corsair PSU to power up RTX graphics cards

The Corsair RMx series is without a doubt a big topic in the PC gaming scene these days. Not only are the PSUs in the RMx line-up high-performing, but they also provide good value for money. The Corsair RM750x power supply is the most advanced power supply for high-end GPUs like the RTX 3080.

It's a completely modular power supply with high-quality caps for efficiency of 80 Plus Gold. This power supply uses less energy to provide a higher output to your computer.

Corsair has created a Rifle Bearing fan that functions silently under peak loads instead of a double ball bearing. At typical to medium workloads, the Zero RPM settings make this power supply extremely quiet.

The Corsair RM750x is a significant upgrade over the company's prior power supply units. It's difficult to locate PSUs with an 80 Plus Gold rating in such a low price range.

This item has two EPS ports to fulfill your computer's high-power requirements. This PSU, unlike the EVGA SuperNOVA 750 P2, which comes with x6 PCIe connections, only has x4 PCIe connectors.

The most striking feature of the Corsair RM750x PSU is its small size. As a result, you can simply fit this power supply into a case with limited space.

If you've just upgraded to a graphics card such as the RTX 3060, 3070, or 3080, you might consider a PSU to square the performance equation. It's totally modular, extremely quiet, has all of the required power connections, and comes with a long-term guarantee.

High-End Power Supply for High-End RTX GPUs EVGA Super Nova 850 G5

Wattage: 850W | Form Factor: ATX | Design: Full Modular | Efficiency: 80 Plus Gold | Warranty: 10 Years

ideal powerful PSU for power hungry GPUs

The EVGA SuperNova 850 G5 belongs to EVGA's top-of-the-line power supply lineup. This G5 model has higher watts, a high-end 80 Plus Gold certification, and superior thermal management under peak loads than the SuperNova 750 P2.

This is a completely modular power supply with top-of-the-line capacitors and a 135mm fluid dynamic fan for whisper-quiet operation. This PSU has an Eco Mode that shuts off the fan when no load is present.

This power supply is capable of supporting a game CPU like the Core i9 9900K and an RTX 3080 Ti GPU. This power supply is capable of powering both an RTX 3080 and an RTX 3090.

When compared to the Corsair RM750x PSU on our list, this high-end power supply costs a little more. You can obtain a high-wattage power supply that is well-built and with the same 10-year guarantee for $20 to $30 extra.

The SuperNova 850 G5 outperforms competition PSUs from Corsair and Seasonic in terms of performance. To connect various types of hardware, the power supply comes with x2 EPS connections and x6 PCIe cables. There are also x4 4-pin and x9 SATA cables included in the box.

The SuperNova 850 G5 provides you more wattage headroom than the Nvidia RTX 3080, which has a minimum power supply demand of about 700W to 750W, according to Nvidia. The SuperNova 850 G5 provides enough power to operate your RTX 3080 even if you overclock it, thanks to its 850W and 80 Plus Gold efficiency.

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So those were the top Nvidia RTX 3080 power supplies on the market. To ensure that your graphics card receives constant power, we recommend the Corsair RM750x or EVGA SuperNova 750 P2. Both of these PSUs are reasonably priced and will suffice to fulfill your power requirements even if you upgrade from the RTX 3080 to a higher-model GPU.

The way we tested

Our product testing procedure is straightforward: we either buy a product or go to a PC vendor shop to learn more about it. We use our performance test to ensure that the product meets our expectations. We've already listed the finest power supply for an RTX 3080 graphics card in our article.

So, we've had some of these PSUs on an RTX 3080 GPU with and without load. When we test a product, there are a few things we look for: performance, efficiency, and pricing. We make certain to only include items that provide the most value to our readers.

Deciding Factors

When there are so many different PSU brands on the market, it might be tough for newcomers to choose the proper product. As a result, before purchasing any PSU, we've compiled a list of important considerations.

Power Consumption

Obviously, an RTX 3080 or other RTX 30-Series cards use more than 300W of electricity. To run the RTX 3080 GPU, Nvidia recommends a 650W power supply.

However, it's advisable to go with a slightly greater number just to be cautious. As a result, a 700W or 750W could be a good choice.

Choosing a high-wattage PSU not only allows you to overclock your hardware, but it also ensures that your PC is future-proof. At the end of the day, it's not just the Wattage of a power supply that matters, but also its Efficiency.


It's a crucial consideration to make when purchasing a power supply. The most common PSU ratings are Bronze, Silver, Gold, Platinum, and Titanium. This is a measure of a power supply's overall dependability and longevity.

PSU Load80 Plus80 Plus Bronze80 Plus Silver80 Plus Gold80 Plus Platinum80 Plus Titanium
At 20% Workload80%82%85%87%90%92%
At 50% Workload80%85%88%90%92%94%
At 100% Workload80%82%85%87%89%90%


Power Connectors

High-end cards in the RTX 30-Series like the RTX 3080 and 3090 need a 12-pin power connector to run properly. It’s hard to find a 12-pin direct power connector in most power supplies, so you can use a 6 or 8-pin to 12-pin power converter as well.

RTX 3080 FAQs

Is 850w PSU good for 3080?

Yes, an 850W power supply is more than capable of powering an RTX 3080 graphics card at full load. However, a PSU with such a high power rating could be excessive for this card. A 750W PSU should suffice unless you have a lot of accessories connected to your PC as well as an RTX 3080 card.

How many watts does a 3080 use?

Under full load, an RTX 3080 consumes roughly 320W to 370W.

Can we use an expensive power supply for the RTX 3080?

To be honest, there's no reason to spend a lot of money on a power supply only to operate an RTX 3080. All you have to do now is choose a power supply that can handle the needs of an RTX 3080 graphics card, your CPU, and the rest of your system's components.

How much better is 3080 than 3070?

The RTX 3080 has nearly half as many CUDA cores as the RTX 3070.

How much faster is 3080Ti VS 3080?

The RTX 3080 Ti outperforms the RTX 3080 in 4K gaming, with a performance differential of roughly 10%. For example, it can obtain 95 frames per second in Dirt 5 at 4K with all settings maxed, compared to 86 frames per second with the original RTX 3080.

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