Best PSU for GeForce RTX 3090

NVIDIA GeForce RTX 3090 is NVIDIA’s latest GPU released in 2020.  According to NVIDIA’s recommendation, like RTX 3080, the RTX 3090 demands 350W for its own, so at least a 750W PSU is recommended. By choosing a high quality PSU, you can enjoy a stable system and long service life. We have tested and reviewed latest PSUs, and below are top recommended ones for NVIDIA GeForce RTX 3090:

NZXT C750 750W 80 Plus Gold Modular Power Supply – Check Price at Amazon/B&H Photo Video/Newegg

Deliver a steady and reliable flow of power to your critical components by installing the NZXT C750 750W Modular Power Supply into your computer system. Designed for computer builders and tech enthusiasts, the ATX power unit delivers up to 750W of power across one +12V rail with a power 80 PLUS Gold energy efficiency rating of up to 87% when at 100% load. Its modular nylon sleeved cables allow you to use only what you need, which cuts down cable clutter while improving the airflow inside your system. Cables are included to support motherboard power, storage drives, accessories, and graphics cards.


  • 750W Single +12V Rail
  • 120mm Cooling Fan
  • ATX 12V v2.4 / EPS 12V v2.92
  • Zero RPM Fan Mode

be quiet!Straight Power 11 750W 80 Plus Gold Modular Power Supply – Check Price at Amazon/B&H Photo Video/Newegg


The Straight Power 11 750W 80 Plus Gold Modular Power Supply from be quiet! is an efficient, high-powered unit designed for enthusiasts. It delivers up to 750 watts of power and utilizes four +12V rails. Moreover, it’s modular, so you can use the cables you need and store the rest. With less cable clutter, your system can benefit from improved airflow for lower temperatures. To keep it cool, the Straight Power 11 is equipped with a 135mm Silent Wings 3 fan that has a 1800 max rpm. Included are enough cables for multiple storage drives, accessories, and even dual-slot graphics cards.


  • 750W Four +12V Rails
  • 135mm Cooling Fan
  • ATX 12V 2.4 / EPS 12V 2.92
  • 4 x PCIe Connectors

SilverStone Strider Series 850W 80 Plus Platinum Modular Power Supply – Check Price at Amazon/B&H Photo Video

The Strider Series 850W 80Plus Platinum Modular Power Supply from SilcerStone is a powerful and efficient modular ATX power supply designed with a single +12 V rail for stability and compatibility among current generation hardware. It’s built with multiple heavy-duty protection features and the modular design allows you to connect only the cables you need. The power supply comes with plenty of cables for multi-GPU setups and peripherals. Unused cables can be stored should you decide to upgrade your system down the road. With less cable clutter, there will be better airflow within the chassis for lower temperatures. A built-in 120mm fan operates silently and provides additional heat dissipation.


  • 850W Single +12V Rail
  • 120mm Silence Cooling Fan
  • ATX 12V Version 2.4
  • 4 x 8/6-Pin PCIe Connectors

Thermaltake Toughpower iRGB Plus 1000W 80 Plus Modular ATX Power Supply – Check Price at Amazon/B&H Photo Video/Newegg

The Toughpower iRGB Plus 1000W 80 Plus Gold Modular ATX Power Supply from Thermaltake delivers up to 1000W of power with a single +12V rail and has a modular cable design. With its 80 PLUS Gold efficiency rating, the Toughpower iRGB PLUS can reach up to 90% power efficiency while its 140mm hydraulic bearing fan quietly helps to maintain optimal temperatures. The low-noise fan features 18 RGB LED lights that support up to 16.8 million colors. It also works with the Thermaltake DPS G app, TT RGB PLUS software, Amazon Alexa, and Razer Chroma to sync with compatible peripherals such as keyboards and mice.


  • 1000W Single +12V Rail
  • 140mm Cooling Fan
  • Modular, Flat, Low-Profile Cables
  • ATX 12V v2.4 | EPS v2.92