6 Best PSU For RTX 4080 (Required, 1000W, 850W, 1200W)

The  RTX 4080 is a high-end graphics card that delivers the ultra performance, but gets the full potential of its want as the best PSU for RTX 4080. You are an enthusiast of gaming, you know very well for a high-end gaming rig components power supply. It’s important as a heart in a body, because like a heart, a psu provides power into different sections in the system.

That’s why we have prepared for you a list of the most quality brands of PSUs that are great for high-end cards as well as other parts of your system. In this post These power supplies come with 80 PLUS Gold certification and also have 1000 watts down to 650 watts. Corsair RMX Series (2021), RMx offers a 1000 watts that is enough for your next generation rig components. 

Such as, if you do not want the high watts power and want an affordable power supply with impressive features.  Like Gold certification, 5 to 10 years warranty, silent operation fan, heavy duty protections. Then for you the most fantastic brands of power supplies EVGA 100-N1, 650 N1 and EVGA 700 GD, 80+ GOLD 700W are good options. 

Therefore, MSI MPG A850GF power supply is also a great power supply for RTX 40 Series graphics cards and good for Intel new 13th generation processors. Its ATX form factor offers 24 pin connector and fully modular cables design make this power supply more elegant. So read these product features, with pros, cons and comparison, and get one of the desired brands that you will not regret. 

 List of Top Rated Best PSU For RTX 4080

  1. MSI MPG A850GF Gaming Power Supply
  2. Corsair SF Series, SF750, 750 Watt, SFX Power Supply
  3. EVGA 650 N1, 650W, 2 Year Warranty, Power Supply
  4. EVGA SuperNova 750 Ga, 80 Plus Gold 750W Power Supply
  5. Corsair RMX Series RM1000x Power Supply
  6. EVGA 700 GD, 80+ GOLD 700W, Power Supply

1- MSI MPG A850GF Gaming Power Supply

MSI MPG A850GF Gaming Power Supply

The RTX 4080 is a great impressive graphics card, for this you are looking for an efficient and reliable power supply. MSI MPG A850GF gaming power supply is an ideal choice, because along with it you can get 80 PLUS Gold Certification. This feature is fantastic for lower energy consumption and higher efficiency. 

With impressive fully modular Design, use just those cables that are required for the build, and significantly reduce cable clutters. Mostly people use just 4 to 5 cables, these cables offer better management , better cooling and lower temperature. Such as, 80 PLUS efficiency potential savings on your power bills, provide your system better longevity and reliability for the gaming PC.  

Compact sizing 160mm-long and 150mm wide dimensions make it more beautiful and ensure fit in most PC cases easy and comfortable. The MPG gaming power supply is easily Nvidia Geforce 30/40 series and is also good for AMD GPUs. Power supply IO supports different and versatile ways according to the power connectors design of different graphics cards.  

Moreover, along with you this pack you can get the 10-year limited warranty and  guaranteeing long term reliable operation. For product quality and performance stability come with 100% japanese 105 C solid capacitors. In addition, it’s utilize alloy copper terminals that can withstand higher current ratings. 


Spose  compares  MSI MPG A850GF Gaming Power Supply to  MSI MPG A750GF White Gaming Power Supply. Then the MPG offers 850 watts, which is +100 more compared to MPG 750 watts. As well as, other features of both power supplies are the same but price is different. Along with MPG 850 you can save your dollars and get more watts.


  • 100% japanese capacitor
  • 10 year warranty
  • High build quality
  • Fully modular black cables for aesthetic look
  • Excellent for high-end Graphics and processors


  • _

2- Corsair SF Series, SF750, 750 Watt, SFX Power Supply

Corsair SF Series, SF750, 750 Watt, SFX Power Supply

We introduce the Corsair SF Series power supplies which is the SF750, one of the best strongest  power supplies for RTX 4080. It’s a brilliant choice for those users that want the 750 watts Platinum certification, and also have an ATX adapter bracket.  Enabling installation into any ATX compatible case and brilliant for most power dense small form factors PCs.

To properly run a gaming PC, you need a lot of wattage, so do not worry its 750 watts is enough to run your PC components properly. Along with this you can get the 80 PLUS platinum certification that delivers power at up to 92% efficiency. Such as, SF Series offers a lower profile and improved flexibility due equipped with individually premium sleeved cables that easily fit into your new high-end prebuilt gaming PC

You can save your electric bill, because using exclusive electrolytic capacitors which is impressive for unwavering power and long term reliability of the power supply. Moreover, it also comes with a 92mm cooling fan which is enough for PSU cooling and operates near-silent at low and medium loads. The fan never turned on during typical tasks like, browsing the internet, working on documents , composing emails. 

Added PWM functionality and uses DC voltage control, PWM helps in voltage regulation and is used to control the fan speed. Award winning Corsair SF750 support the 100% japanese capacitor and also have a 7-years warranty which offers a massive and lasting amount value for the money. 


If you want the high-end awkward winning power supply that is fully compatible with new RTX 4090 graphics. Compared to its previous version the SF Series offers better efficient performance but it is a bit expensive. For those users who want a unique, and admirable  unit for its system then it is a great choice. 


  • Powerful and efficient 
  • Tight load regulation
  • Quiet operation 
  • Fully modular
  • 7-Year warranty


  • Bit Expensive
  • Semi-passive mode cannot be deactivated

3- EVGA 650 N1, 650W, 2 Year Warranty, Power Supply

EVGA 650 N1, 650W, 2 Year Warranty, Power Supply

EVGA is a brand that will take the first level in the market because of its incredible innovations. EVGA 100-N1-0650-L1 is an affordable power supply for budget conscious users. This is a great option for those who want a good-featured yet affordable power supply. Because of the low price and it won’t have good features, some people don’t buy cheap products. 

But it is not, it offers 80 PLUS certification, ATX Form Factor, has cooling fan, heavy duty protection, etc. Having 650 watts power that is enough for RTX 4080 in low cost and supporting 30A on single +12V rail provide more options without reducing your components requirements. In addition, cooling offers a quiet and intelligent fan for near-silent operation. 

Furthermore, This fan helps your system temperature maintain a low level without any extra noise. Plus with a 2 year warranty benefit for  your next build on a budget. RTX 4080 supports 24 pin ATX connectors and PCIe pins are very important for. So do not worry, in low budget this ATX power supply also offers a 24 pins connectors and PCIe slots. They are also used for the latest graphics cards and upgrade all components with its power. .

Thanks to its sleeve bearings which is good for long term use of your power supply, it also offers a heavy duty protection including OTP, OCP, OVP, etc which is great feature for  short circuit and over power protection in the system. You will be ready to power up all the PCs, because it has the dimensions of  5.51 x 5.91 x 3.35 inches. 


If we compare EVGA 100-N1-0650-L1 to its other latest version like 750 watt power supply then both have the same features but the latest power supply has 100 watts more compare it. But if you need not more watts for your system then the EVGA 100-N1-0650-L1 is ideal choice for budget conscious users. 


  • Affordable 
  • Offers 24 pin connector
  • 120mm fan
  • ATX form factor


  • Only 2 years warranty

4- EVGA SuperNova 750 Ga, 80 Plus Gold 750W Power Supply

EVGA  SuperNova 750 Ga, 80 Plus Gold 750W Power Supply

If you want long term usage and outstanding power for the RTX 4080 and upgrade your PCs components. For this the EVGA 220-GA-0750-X1 superNova is a brilliant choice at normal price. Also come with fantastic features that provide your power hungry components smooth energy and longevity. First of all the ATX form factor features are good for latest Graphics cards that offer 24-pin connectors. 

In heavy loads they are provided to continuously power your system because they come with 80 PLUS Gold certification along with 50% load to get up to  90% efficiency. Along with this ability you can get a stable flow of electricity, and do not waste energy. Thanks to its 100% japanese capacitor and DC-DC converter design that improve to 3.3V/5V stability and prevent the damage of the device or breakdown.   

Due to its fully modular cabling design you can use only cables that you need in the system, reducing cable clutter and improving case airflow. EVGA SuperNova comes with an impressive 135mm dual ball bearing fan, which maintains the device temperature and operates on less noise level and increases longevity of the components. 

Moreover, this power supply also includes a full suite of protections like, OCP, SCP, OPT, UVP, OPP for safety and security. Plug-in connectors included 24 pin ATX-1x, PCIe 6x 8 pin(6+2) and SATA 9x. Powerful energy for next generation motherboards, graphics cards and other system components comes with  a 10 year warranty. 


If we compare EVGA 220-GA-0750-X1 SuperNova to  750 EVGA SuperNOVA 750 GM both power supplies have the same features. But if you want some dollars saved then you buy the EVGA 220-GA-0750-X1 at a reasonable price compared to this series other versions. 


  • 80 Plus Gold certification
  • 100% japanese capacitor
  • Heavy duty protection
  • Dual ball bearing 135mm fan
  • For latest graphics cards have 24-pin connector


  • Short distance between peripheral connectors

5- Corsair RMX Series RM1000x Power Supply

Corsair RMX Series RM1000x Power Supply

Do you want the high-quality components power supply with high energy for RTX 4080. 

The Corsair RMX Series power supply is an ideal choice that is highly efficient at light loads and also comes with top quality fans. Along with you 1000 Watts are enough for your power  graphics and provide full power at 47 degree celsius.  Fully modular cables design is brilliant, so you use only cables that your system needs. 

Such as, This cable’s design ability of power supply makes the system more airflowing and reduces low temperature. Because of its high quality materials it was awarded, Corsair is a well known brand in the markets. So, whenever you want the upgrading and best power supply for your new flagship high-end graphics cards. 

Processor power supply then the Corsair RM1000x is a great opportunity for you. Fully modular power supply also delivers 80 Plus Gold efficient power to your PC, that means now you spend less time worrying and more time playing games due to upwards of 90% peak efficiency that produces less noise and less heat.  For heat dissipation and main temperature come 135mm magnetic levitation fans that have low bearing noise and superior reliability.  

Plus zero RPM fan mode feature also has at low and medium loads the cooling switch off near silent operation. Moreover, you can get reliable power and superb electrical performance, because RMx series psu.  Having a robust resonant LLC topology, DC-DC conversion and 100% Japanese capacitors increase longevity, stability of the system.


Corsair RMx series 1000x compared to its previous version Corsair RM1000x then both power supplies have same features but RMx series are a bit cheaper, have more EPS connector, and more 3 SATA connector. 


  • Fully modular 
  • 10 year warranty
  • Magnetic levitation 
  • Quiet operation
  • Highly efficient at light load
  • 10-year warranty


  • Small distance between peripherals

6- EVGA 700 GD, 80+ GOLD 700W, Power Supply

EVGA 700 GD, 80+ GOLD 700W, Power Supply

Do you get high performance and full potential of your RTX 4080 high-end card and look for the best power supply. The EVGA 700 GD is the best option, It is equipped with impressive features that make your PC components more powerful and efficient. Additionally, 80 PLUS Gold rated efficiency is not wasting energy and turning it into excess heat. 

For cooling  air flowing EVGA comes with a quiet intelligent auto fan, because of this your system temperature cools in heavy loads. And you can work in a silent environment because its fans have low  noise in heavy loads. Such as, get the reliability and performance due to the high-quality japanese capacitor. 

Moreover, DC to DC converter for solid power, and stability voltage step down and minimal signal noise at 3.3V and 5V. Plus ATX form factor design is also amazing for next generations Graphics cards, processors.  Brilliant capacitor and black sleeved cables increase the lifespan of your system. 

Offers a 5-year warranty, that is a benefit for you, in this time if your psu damage works not correctly you can check the company and again repair it in this policy time. Furthermore, short circuits or high current flow also come with heavy duty protection features including OPP/OVP/SCP/OTP/UVP etc.   


EVGA 700 GD compared to EVGA 220-G5-0650-X1 SuperNova 650 then both have some features same but EVGA GD have 50 more watts, have less price, 1 more PCIe 6+2 pin connector. If you want to save some dollars and more watts then we prefer you go with  EVGA 700 GD.


  • ATX form factor
  • 700 watts power
  • Several power protection DC to DC convertor
  • 5-Year warranty


  • Not fully modular cables design

RTX 4080 PSU Requirements

  • For 12 GB variant power: Minimum 700 watts, Recommended 800 Watts 
  • For 16 GB variant power: Min 750 watts, Reco 850 watts 
  • Certification: Minimum 80 plus Bronze, and maximum 80 Plus Gold 
  • Durability: 100% japanese 105 C capacitors
  • Connectivity: Via PCIe Gen 5 power cable
  • Cabling: Fully Modular 
  • Cable Support: 3x PCIe 8-pin cables

RTX 4080 vs RTX 3080

  • The RTX 4080 is built on the AD103 graphics that is designed with 4nm microarchitecture, RTX 3080 is built on GA 102 graphics with 8nm processor. 
  • New 4080 impressive card comes with 16 GB GDDR6X memory, and the 3080 has just 10GB GDDR6X.
  • The base clock speed of the 3080 is 1440 MHz and you look at the 4080 base clock speed that is 2205 MHz.
  • Boost clock speed of the new 4080 is 2505 MHz that is more compared to 3080 boost clock speed 1710MHz. 
  • RTX 4080 is the best choice because it has a 47% faster boost clock speed and 53% faster base clock speed compared to RTX 3080. 
  • For new AAA games, video editing, streaming the RTX 4080 is a brilliant choice and is 75 to 88% better than the 3080.

Best PSU For RTX 4080 Buying Guide

With high-quality materials, getting the PSU is not an easy task, and you are looking for an RTX 4080 high-end graphics card with the best power supply. We tell you about in this buying guide some important features that help to buy a good power supply for your whole system. But before that we will tell some power supply brands which will help you in your decision.

MSI MPG A850GF Gaming Power Supply is brilliant because it comes with impressive features at a normal price. Anyone can buy it easily. And if you want more power for multiple graphics and other components then the Corsair RMX Series (2021), RM1000x is an ideal choice. And if you want not high-power supply, your budget is the  EVGA 100-N1-0650-L1. 


The main feature in power supplies is the watts, and depends on you how many watts you are using for your system. Particularly the 500 to 650 watts is enough for rtx 4080, but if you want double graphics and get the full potential of your system then the 850 watts is the best option. 


Efficiency is also an important feature, because of this feature your system does not use waste energy and save electricity bills. Many kinds of certifications, but if you are getting 650 to 850 watts then with this the 80 PLUS Gold certification is an important check. And if you get 850 watts power supply with platinum certification So that’s even better.


120mm to 140mm fan in Power supply with fluid dynamics and hydrodynamics bearing the are the better option. In heavy loads, gaming, rendering, streaming then  pc all components need a fan to maintain the temperature. Such as, in a heavy workload the  power supply can overheat. EVGA 220-GA-0750-X1 SuperNova comes with a 135 mm fan which is good for airflow and maintains the temperature of your system.  

Cable management

You must look at the cable design because the cable design of the psu offers better thermal performance and reduces the clutter in the chassis. For this the fully modular cable cables design is best, in this design use just needed cable and better for airflow. The MSI MPG A850GF also comes with a fully modular cable design.

Additional features

For surety,  durability and lifespan of the power supply warranty is an important factor, most high-end branded power supplies mostly offer the 5 to 10 year warranty.  Additionally for heavy duty electrical protection included SCP, OVP, OTP, OCP, OPP etc which prevent loss or leakage of power and further damage to your system.


Is 750 Watts Enough for RTX 4080?

If you get the 12GB variant of the 4080 for this you will need just 700 watts power and if you buy a 16GB RTX 4080 for this is recommended 750 watts power. 

How Much Better 4080 In CUDA Cores Than RTX 3080?

The RTX 4080 is 45.7% faster in CUDA Cores than RTX 3080.

Is Corsair RM850x An Ideal Option For A Power-Hungry New 40 Series RTX 4080 Card?

Yes, Corsair is a well known brand in the market and its RMx series all power supply comes with impressive features but for rtx 4080 the Corsair RMx850 is also good.

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