8 Best Power Supply for RTX 3080 GPU To Get In 2021

Nvidia GeForce RTX 3080 is one of the latest GPUs on the market right now. And indeed one of the highest performing GPUs. 

Despite having a powerful CPU, to power the RTX 3080 GPU to its maximum potential you will need at least a 750 Watt power supply unit. 

Nvidia has recommended using at least 750 watt PSU to make the 3080 perform at its best. 

In case you are looking for one, roll your eyes through this listicle of the best power supply for RTX 3080 GPU. 

Are you in hurry? If you do not want to spend your time seeing all power review one by one, than I would recommend you for buy buying the Cooler Master MWE Gold 850 V2, which is a best power supply for RTX 3080. You can trust on the power supply closing your eye.

Best Power Supply for RTX 3080: Reviewed In 2021

1. EVGA SuperNOVA 220-G3-0850-X1

Output Wattage: 850 Watt.

Power Supply Design: Full Modular. 

Efficiency: 80 plus Gold. 

Noise: Quiet. 

Compared to the previous launch SuperNova G2, this EVGA SuperNova 220-G3 is smaller.

Though the size got small but the performance got better. This Supernova G3 is 80 Plus gold certified for working in more than 90 – 92% efficiency under average load. 

For long-term reliability, EVGA has used top-notch Japanese capacitors. 

It is a fully modular power supply unit that increases the airflow and lowers clutter. 

With this EVGA SuperNova G3 PSU, you don’t have to worry about durability. It comes equipped with various protections such as,  

Over Voltage Protection, Under Voltage Protection., Over Power Protection., Over Current Protection., Over Temperature Protection, and Short circuit protection. 

Comes with TCS (Thermal Control System) which keeps the unit quiet when it is under medium and heavy loads. Plus, it has Hydraulic dynamic bearing far and they are super quiet and extremely long-lasting. 

Lastly, this Power Supply unit is Nvidia SLI and AMD crossfire ready.

Why Should You Pick This? 

  • 850-watt PSU, just what you need to power up the 3080.
  • Comes with a 10-year warranty. 
  • Extremely efficient and powerful unit. 
  • Highly durable and reliable PSU.
  • Operates very quietly.
  • AMD and Nvidia SLI crossfire ready. 
  • Protection from overpower, temp, current, voltage, etc. 

2. Corsair RMX Series Fully Modular PSU

Output Wattage: 1000 Watt.

Power Supply Design: Full Modular. 

Efficiency: 80 plus Gold. 

Operation: Quiet. 

Here we are looking at the Corsair RMX series 1000 watt power supply. Indeed it is one of the most powerful Units. 

Has 80 plus gold certified efficiency. Heavy load doesn’t make the unit heat heavily. 

The manufacturer has used 105 Japanese capacitors for greater reliability. This unit comes equipped with some highly premium internal components which constantly deliver solid power. 

Under low and medium load the power supply unit will make close to no noise, thanks to the zero rpm fan mode. 

And even in heavy load, the fan doesn’t make noise loud enough to disturb people sleeping next to your room. 

Since it is a fully modular unit that makes your build pretty easy. And it makes the entire setup look pretty clean as well. 

And lastly, it is 6th generation intel core processor ready. 

Why Should You Pick This? 

  • Highly efficient power supply unit. 
  • Makes close to no noise under low to medium load. 
  • Super easy to do upgrades. 
  • Delivers constant solid power. 
  • Comes with a 10-year warranty. 

3. EVGA SuperNOVA 850 Ga 80 Plus Gold

Output Wattage: 850 Watt.

Power Supply Design: Full Modular. 

Efficiency: 80 plus Platinum. 

Noise: Little Noisy.  

For those who are looking for a power supply unit that is easy to customize with cables, we have the EVGA SuperNova 850 GA power supply unit for them. 

With a very reasonable price, this very unit has been on the top of the list for a while until the G3 came in. 

This very beast is equipped with all the features that an ideal power supply unit should have. The features are pretty much the same as the previous 850 G3. 

And not only for RTX 3080, but it is also suitable for the RTX 3070 as well. 

Features Japanese capacitors for good reliability. Plus, this PSU is 80 plus gold efficiency rated, so that tells a lot about the performance of this power supply. 

When the CPU working under a low load, the fan wouldn’t make any noise at all. But the load gets heavier the noise will increase. 

But no loud enough to wake the person sleeping in your room. 

The fan has a dual ball bearing that spins smoothly and is highly long-lasting. 

It has better airflow and less clutter, thanks to its full modular. The manufacturer gives a 10-year warranty.

Why Should You Pick This? 

  • Under typical loads, it performs with 90% efficiency. 
  • Long-lasting dual ball fan bearings. 
  • Highly reliable and powerful unit. 
  • It is a fully modular PSU.
  • The manufacturer offers a 10-year warranty. 

4. ASUS Rog Thor 1200: Fully-Modular RGB Power Supply.

Output Wattage: 1200 Watt.

Power Supply Design: Full Modular. 

Efficiency: 80 plus Platinum. 

Operation: Quiet. 

Oh boy, we have a lot to tell about this very beast. 

It is hard to find a gamer who hasn’t heard of ASUS ROG. And this ASUS ROG THOR is the only power supply unit in this list that has an output wattage of 1200 watts. 

Insane, right? Wait, there is more. 

This ROG PSU has an illumination ecosystem technology that enables you to synchronize the RGB lighting all over your gaming setup. In other words, with this, you can make your own custom lighting atmosphere. 

Plus, it comes equipped with an OLED panel that shows the real-time power draw. This allows you to just take a look and see how much juice is being used. 

Also features a 135 mm wing-blade fan that spins smoothly and makes close to no noise at all. And there is an ODB technology that shuts off the fan when the CPU is under a very low load. 

An integrated heatsink works continuously to keep the temperature low. And this ROG heatsink works has the ability to lower the temperature 20% more than other heatsinks. 

This heatsink indirectly increases the lifespan of the PSU. 

Like others on this list, this unit also used Japanese top-class capacitors for max reliability. 

The capacitors guarantee that it will work with 89% efficiency under 100% load. And with 92% efficiency when under 50% load. 

And lastly, ASUS has used sleeved cables in this unit so that you can do your upgrades hassle-free and the entire build looks clean. 

Why Should You Pick This? 

  • Comes with a real-time display for power draw. 
  • Super smooth and long-lasting wing fans. 
  • Under low to medium load, it makes close to no noise. 
  • A top-notch heatsink keeps the temp low. 
  • The Power supply works highly efficiently. 
  • Sleeved cable for Hassle-free build and clean look. 
  • 1200 watt output capacity. 

5. EVGA SuperNOVA 120-GP-0850-X1: 850 G+ Power Supply.

Output Wattage: 850 Watt.

Power Supply Design: Full Modular. 

Efficiency: 80 plus Gold. 

Operation: Quiet. 

It must tell one remarkable review of this EVGA SuperNova G+, we were promised to be delivered gold, but got platinum instead. 

And it is actually true, this power supply unit exceeds the expectations. 

It is an 850 watt 80 plus gold efficiency certified power supply unit for RTX 3080 GPU’s. Under typical load, this unit performs with 90% (115 VAC) and 92% (220 – 240 VAC) efficiency.

Comes equipped with a 135mm fluid dynamic bearing fan. Under low to medium load, the fan doesn’t make much noise. 

It starts to make little noise when the PSU is performing under heavy load which is okay. 

For extended lifespan, it is integrated with some protections. And they are over-voltage, under-voltage, short circuit, overpower, and over-temperature protection. 

It is a fully modular unit that allows good airflow and also makes the entire build look clean. And lastly, you get a 10-year warranty. 

Why Should You Pick This? 

  • Features overload protection for a long lifespan. 
  • The fan spins smoothly and doesn’t make much noise. 
  • The modular unit enables good airflow and looks clean. 
  • Performs very efficiently under load. 
  • Comes with a 10-year warranty. 

6. ASUS ROG Strix 850W White Edition

Output Wattage: 850 Watt.

Power Supply Design: Full Modular. 

Efficiency: 80 plus Gold. 

Operation: Little noisy. 

The second ASUS ROG power supply in the list. Another good one. 

This ROG Strix white edition power supply comes with a heatsink that greatly reduces the temperature. And that results in a longer lifespan of the unit and also quiet operation. 

Features Axial tech-designed fan which consists of a small hub. The fan hub allows for longer blades and a barrier ring, and these together cause increased downward air pressure. 

The fan features dual ball fan bearings which are way more long-lasting than the sleeve bearing. 

With this unit, you get 0DB technology which enables you to experience smooth light gaming. Then there are Japanese capacitors that are extremely reliable. 

In fact, almost every manufacturer is using Japanese capacitors in their power supply units for their incredible reliability. 

Even under heavy load the unit performs well and efficiently. Comes with modular cables that help in the upgrade and make the build look clean. 

Why Should You Pick This? 

  • Heatsink keeps the unit cool. 
  • Very long-lasting and durable power supply. 
  • Highly efficient even under heavy load. 
  • Smooth spinning fan with long-lasting bearings. 
  • Highly reliable unit with 10 –year warranty. 

7. Thermaltake Toughpower GF1 850W

Output Wattage: 850 Watt.

Power Supply Design: Full Modular. 

Efficiency: 80 plus Gold. 

Operation: Little noisy. 

For the price, this Thermaltake Toughpower GF1 power supply unit is a steal. The price is very reasonable and the performance is up to the notch. 

It is 80 plus gold certified, can deliver up to 90% efficiency. And the way this power supply unit is optimized it is ready to work with all generation intel processors. 

Features 140mm fans that utilize hydraulic bearings. These bearings are super smooth and last very long. Plus, they make very low noise as well. 

The bearings are self-lubricated so you can expect them to perform at their best all the time. 

The fan speed on this unit is autoregulated, and the regulation depends on the power consumption.

The fan works only when the power supply is over 30% load. And this leads to quiet and efficient performance. 

Comes equipped with Japanese capacitors that deliver good reliability, durability, and stability. 

For better heat management and good power output quality, the daughterboard is directly connected to the motherboard. 

Why Should You Pick This? 

  • Very good heat dissipation. 
  • Performs with up to 90% efficiency. 
  • Long-lasting fan bearings. 
  • Comes at a reasonable price. 
  • Auto fan speed regulation. 
  • Highly stable, reliable, and durable unit. 

8. ARESGAME 850W Full Modular

Output Wattage: 850 Watt.

Power Supply Design: Full Modular. 

Efficiency: 80 plus Gold. 

Operation: Little noisy. 

Are you on a tight budget? And looking for a good unit of power supply within that? We got you. 

Have a look at this ARESGAME 850 Watt power supply unit. For the price, this unit offers more. 

It is a full modular ATX gaming power supply unit, delivers 850 watts of power just what you need to boost up the 3080 GPU’s performance. 

The voltage output is very stable and reliable. Performs just fine under load. 

With 80 plus gold certification, this unit delivers up to 90% efficiency. Comes with a 140mm durable fan and this fan operates very smoothly as well. 

Also provides over-voltage, power, current, short circuit, and under-voltage protection. 

Why Should You Pick This? 

  • It is an extremely affordable unit. 
  • Comes with over-voltage, current, power and etc. protection. 
  • Can perform with up to 30% efficiency. 
  • Under light load, the fan doesn’t make much noise. 
  • Highly reliable, durable, and stable power supply. 


If you have gone through these 8 best power supply for RTX 3080, then you must have chosen one for you already. 

Users seem to be pretty satisfied with these units and these are the highest-rated units of the market right now. We have tried to cover everything you need to know about these units and hope it helped. 

And if you have picked any from the list, make sure to share your experience through the comment section so that others will get benefitted.