is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more ›

Best Power Supplies for 3070 of 2024


If you're updating your PC to accommodate NVIDIA's next-generation 30-series graphics cards (GPU), one of these top selections for the best power supplies for 3070 will ensure that you have no issues with the strong new hardware.

This is particularly true if you're using an old or insufficient power supply, a lack of power will frequently result in system unreliability and game crashes. 


1. Corsair RMX Series (2018), RM650x, 650 Watt, 80+ Gold Certified, Fully Modular Power Supply

The heat and efficiency of this 650W PSU are certified 80 Plus Gold, which is near the top for this sort of gear. Thanks to a clever controller that keeps RPMs minimal when idle, the fan won't be noticed unless the machine is being stressed. It's totally modular, which means you may simply connect what you need for convenient cable management. There is a ten-year warranty included.



  • Less noise and cooler temperatures.

  • Near-silent operation.

  • Fully stackable cables.

  • Good durability.

  • 105°C rated Japanese capacitors.

  • Reliability.


  • Smells funny.

2. Cooler Master Watt 650 Watt Semi Fanless Modular Power Supply, 80 PLUS Bronze Certified Power Supply for Computers

Cooler Master produces high-quality power supplies, and its MasterWatt 650W model is particularly affordable. It has an overall score of 80 Plus Bronze and a five-year insurance, which aren't as remarkable as the top options, but it'll do the job. When not in use, the 120mm fan is silent, and it's somewhat modular to aid wire management.


  • 80 plus bronze certified.

  • Stable voltage output.

  • Dustproof LDB bearing.

  • Supported graphics cards.


  • Limited battery life.

3. Thermaltake Toughpower Grand RGB 650W 80+ Gold Smart Zero 256-Color RGB Fan Fully Modular Power Supply 10 YR Warranty PS-TPG-0650FPCGUS-R

The Thermaltake TOUGHPOWER Grand 650 is for people who believe that system and the performance isn't complete without RGB. It comes with five different RGB settings operated by a dedicated button on the rear of the PSU, as well as being modular for easier cable management. It has an 80 Plus Gold efficiency rating, which means it doesn't consume a lot of energy, and it comes with a 10-year warranty to protect your investment.


  • Enhanced pressure for good cooling performance.

  • 7th generation Kaby Lake processors for maximum energy saving.

  • Low noise design.

  • High durability and reliability.

  • Includes industrial protection .


  • Hard to build.


1. Is 750W PSU enough for 3070?

Yes. According to Nvidia, a 750W power supply should suffice. They tested a 650w psu with an i9–10900k and RTX 3070 and concluded that you should be able to get by with a 650w psu, but to be conservative, a 750 gold psu is recommended.

2. Can a 600W PSU handle a 3070?

Yes, as long as your power supply isn't ridiculously cheap and provides far less power than claimed, you should be fine. Although Nvidia recommends a 650-watt psu with the 3070, this is primarily to cater to extreme overclockers and those with power supplies that are significantly less powerful than promised.

3. How much wattage does a 3070 need?

At its most powerful, the RTX 3070 consumes roughly 200 Watts. As a result, your power source must have a minimal amount of 550 Watts, which is more than double the maximum power.

Final Thought

NVIDIA recommends a 650W power supply for the RTX 3070, however if you're looking for the best power supplies for the 3070 in 2022, you might be alright depending on other gear in your system. You can always give it a try before purchasing a new power supply. On the other hand, updating to something new is never a terrible idea, especially if your power supply is starting to show its age. Regardless of wattage, an old PSU can cause problems.

Leave a Reply

Your email address will not be published. Required fields are marked *