Best Power Supply For 3090: What You Need To Know

Best Power Supply For 3090
Best Power Supply For 3090

The power supply is an essential part of any computer. Without one, you will not be able to run your computer properly. The power supply is the thing that provides electricity to the motherboard and RAM of your computer. It is also used to transfer information between the motherboard and hard drive. Without a good power supply, you will not be able to play high-end games or use all of your applications at full capacity. The best power supply for 3090 will give you a stable and powerful gaming experience, as well as allow you to work on your computer without any problems.

Quick table with our top 3 picks:

Product
EVGA SuperNOVA 1000 GT, 80 Plus Gold 1000W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 150mm Size, Power Supply 220-GT-1000-X1
UL Listed 90W AC Charger Adapter Fit for Dell OptiPlex 3050 3060 9020 7060 7070 7090 5060 5070 5080 3020 3070 3080 3090 3040 5050 7050 7070 Micro Desktop Power Supply Cord
EVGA 850 B5, 80 Plus BRONZE 850W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply 220-B5-0850-V1
EVGA SuperNOVA 1000 GT, 80 Plus Gold 1000W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 150mm Size, Power Supply 220-GT-1000-X1
UL Listed 90W AC Charger Adapter Fit for Dell OptiPlex 3050 3060 9020 7060 7070 7090 5060 5070 5080 3020 3070 3080 3090 3040 5050 7050 7070 Micro Desktop Power Supply Cord
EVGA 850 B5, 80 Plus BRONZE 850W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply 220-B5-0850-V1
Product
EVGA SuperNOVA 1000 GT, 80 Plus Gold 1000W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 150mm Size, Power Supply 220-GT-1000-X1
EVGA SuperNOVA 1000 GT, 80 Plus Gold 1000W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 150mm Size, Power Supply 220-GT-1000-X1
Product
UL Listed 90W AC Charger Adapter Fit for Dell OptiPlex 3050 3060 9020 7060 7070 7090 5060 5070 5080 3020 3070 3080 3090 3040 5050 7050 7070 Micro Desktop Power Supply Cord
UL Listed 90W AC Charger Adapter Fit for Dell OptiPlex 3050 3060 9020 7060 7070 7090 5060 5070 5080 3020 3070 3080 3090 3040 5050 7050 7070 Micro Desktop Power Supply Cord
Product
EVGA 850 B5, 80 Plus BRONZE 850W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply 220-B5-0850-V1
EVGA 850 B5, 80 Plus BRONZE 850W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply 220-B5-0850-V1

Top 8 Best Power Supply For 3090 Reviewed

Bestseller No. 1
SIRLYR 16Pin to 3 * 8(6+2) Pin PCIE GPU Cables Sleeved PSU Extension Cable Mini 12+4 Pin Connector Graphics Card Power Supply RTX 3090Ti 16AWG Black
  • No need to replace the power supply, just connect to the old 3*8Pin module cable to convert to 12+4Pin cable, 5 PCIE extension cable designed according to the new generation standard, no signal loss, Supports data link speeds of 32GT/s ,twice that of PCIe 4.0
  • The sleeved cable mod 12pin adapter is design for RTX 3090 PCIE graphics card and supports 3090Ti and new generation graphics card 40 series.
  • High quality Excellent stability, use UL1007 standard cable, high specification wire easily handle your ultra highpower power supply, perfect for 500W - 1300W PSU.
  • Cable manufactured with 16AWG wires and come in a high-density flexible protective sleeve allowing for a stiff yet adaptable temperament.
  • The cable extension measure 30cm in length and equipped with combs for a clean cable management and a uniform design.
SaleBestseller No. 2
EVGA SuperNOVA 1000 GT, 80 Plus Gold 1000W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 150mm Size, Power Supply 220-GT-1000-X1
  • 80 PLUS Gold certified, with 90% (115VAC) / 92% (220VAC-240VAC) efficiency or higher under typical loads
  • Fully Modular to reduce clutter and improve airflow
  • 100% Japanese Capacitors plus OVP, UVP, OCP, OPP, SCP, and Dual OTP Protections
  • Fluid Dynamic Bearing Fan and EVGA ECO Mode for ultra-quiet operation and increased lifespan
  • 10 Year Limited Warranty and unparalleled EVGA Customer Support
SaleBestseller No. 3
EVGA 850 B5, 80 Plus BRONZE 850W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply 220-B5-0850-V1
  • 80 PLUS Bronze certified, with 89% efficiency or higher under typical loads
  • Fully Modular to reduce clutter and improve airflow
  • EVGA ECO Intelligent Thermal Control System eliminates fan noise at low to medium loads
  • 5 Year and unparalleled EVGA Customer Support
  • Heavy-duty protections, including OVP, UVP, OCP, OPP, SCP, and OTP
Bestseller No. 4
65W AC Charger Fit for Dell OptiPlex 7050 9020 3050 3070 3080 3090 3020 3060 5050 7070 3040 D09U D09U001 D10U D10U002 Micro Desktop Computer Power Adapter Supply Cord
  • Safety: With the international quality certification authority, our products are in compliance with top industry standards, and include numerous safety mechanisms, including protection against short circuiting, overvoltage, overcurrent and internal overheating. Designed with high temperature resistant, flame retardant and fire-resistant materials, all our products provide ultimate protection for your devices.
  • Durability: Durable material and superior components ensure long durability, regardless of scrapes, bumps, or drops
  • Package Includes:1 X AC Adapter, 1 X UL Power Cord. Exclusive charging technologies used in our products to deliver the fastest charing speed. Your device will get power quickly.
  • Specs:Output:19.5V 3.34A 65W(Compatible with 19.5V 2.31A 45W) Input:100-240V 50-60Hz
  • Warranty: Your shopping experience is important for us. If you don't want It for any reason, we will happily accept the return and give your money back in 30 days. And we offer 12 months warranty for exchange. Anyway, return or refund are available. (Please check your laptop model and buy it with confidence!)
Bestseller No. 5
4.5mm Tip AC Charger Fit for Dell OptiPlex 3090 5090 7090 D14U001 D14U004 D14U005 Micro Desktop Power Supply Adapter Cord
  • Safety: With the international quality certification authority, our products are in compliance with top industry standards, and include numerous safety mechanisms, including protection against short circuiting, overvoltage, overcurrent and internal overheating. Designed with high temperature resistant, flame retardant and fire-resistant materials, all our products provide ultimate protection for your devices.
  • Durability: Durable material and superior components ensure long durability, regardless of scrapes, bumps, or drops
  • Package Includes:1 X AC Adapter, 1 X UL Power Cord. Exclusive charging technologies used in our products to deliver the fastest charing speed. Your device will get power quickly.
  • Specs:Output:19.5V 4.62A 90W(Compatible with 19.5V 3.34A 65W) Input:100-240V 50-60Hz
  • Warranty: Your shopping experience is important for us. If you don't want It for any reason, we will happily accept the return and give your money back in 30 days. And we offer 12 months warranty for exchange. Anyway, return or refund are available. (Please check your laptop model and buy it with confidence!)
Bestseller No. 6
65W 45W Micro AC Charger Fit for Dell OptiPlex 9020 3050 3020 3060 3070 3080 3090 5050 5060 5070 7050 7060 7070 Inspiron 15 7590 7790 7500 17 7706 15 7501 7506 Micro Desktop Power Supply Adapter Cord
  • 【Connector size】 4.5*3.0mm, Please confirm the size of the plug before you buy it !! Replace Part Number: WJRKM 492-BCKW LA90PM111 PA-1900-32D2 Y4M8K 0Y4M8K RT74M 0RT74M PA-1900-32D5O charger for OptiPlex Micro 5060 7060 5080 OptiPlex 5070 7070 7080 Micro type .
  • 【Fit for Dell】 OptiPlex 9020 3050 3040 3020 3060 3070 3080 3090 5050 7050 7070 Micro Desktop, [[[NOTE!!!But Not Fit for Optiplex 7050 7070 (130W 90W) ]]].
  • 【Input】 100-240V~1.6A 50-60Hz Output: 19.5V-4.62A Watts: 90 Watts ( Compatible with 45W/65W , not replace the 19.5V 6.67A 6.7A 130W) charger for Dell 17 7706 15 7501 7506 2 in 1; charger for Dell Inspiron 15 7590 7500 17 7790 2-in-1 Dell Vostro 7500 notebook pc .
  • 【Replacement for Dell】 90W AC Adapter for Dell XPS 13 (L321X) / (L322x), 13 (9343), XPS 12 (9Q23) / (9Q33), 11 (9P33) .
  • 【WARRANTY & SUPPORT】 365 Days no-questions-asked full money back or Free Exchange Guarantee. 7×24h Online Free Technical Support, Fast shipment from Amazon warehouse. Your satisfaction is guaranteed. Click the button "ASK A QUESTION" and CONTACT US. We have warehouses in NY, making sure that you could have a high-quality after-sale service. Press [CTRL + F] to search your laptop model/part number .
Bestseller No. 7
UL Listed 90W AC Charger Adapter Fit for Dell OptiPlex 3050 3060 9020 7060 7070 7090 5060 5070 5080 3020 3070 3080 3090 3040 5050 7050 7070 Micro Desktop Power Supply Cord
  • Fit for Dell OptiPlex 3050 3060 9020 7060 7070 7090 5060 5070 5080 3020 3070 3080 3090 3040 5050 7050 7070 Micro Desktop, Not Compatible with Optiplex 7050 7060 5080 130W.
  • Input: 100-240V~1.6A 50-60Hz Output: 19.5V-4.62A Watts: 90 Watts ( Compatible with 45W/65W )
  • Nicpower chargers manufactured with the highest quality materials small and lightweight fine workmanship and include OVP,OCP,SCP Protection (OVP: Over Voltage output Protection.OCP:Over Current output Protection.SCP: Short Circuit output Protection).
  • What you get:1 x AC Adapter & 1 x UL Power Cord
  • Service & Support:30 Days No-hassle Return Policy / Manufacturer 12 Months Warranty
Bestseller No. 8
RTX 3.0 Series 12pin to Dual 8-pin nvida Graphics Card Extension Cable 3070/3080/3090 16AWG for nvida PCIE Sleeved Braided Male to Female Extension Cord Power Supply Cable for PC Computer (Black)
  • Hold the patent certificate of cable sleeved braided. Invention Patent No.:ZL 2014 1 0419372.8 ZL 2017 1 0283721.7
  • UL1007 standard cable rod manufacturing, cable rod stable, more reliable safety
  • The extension cord is suitable for 3.0 series PCIE graphics card and supports 3070/3080/3090.Please note that:Only the black one is 16AWG which is suitable for graphics card 3090.
  • Premium PET/Nylon flexiable sleeved cable extension,fully shielded with high quality copper 18AWG standard.
  • Can offer a one-year warranty

5 Things To Consider Before Buying The Best Power Supply For 3090

  1. The Output Voltage

The output voltage is the amount of electricity that is provided to your computer. It is measured in volts. The higher the voltage, the more powerful your computer will be and the faster it will run. A higher output voltage means a better gaming experience, as well as a better chance of preventing overheating. You can choose an 80-volt power supply if you want to play high-end games and use all of your applications at full capacity, or you can choose a 120-volt power supply for a slightly lower price.

  1. The Efficiency

The efficiency of a power supply is how much electricity it can produce from the amount of electricity that was used to produce it. It measures how many watts are produced per watt that was used by the power supply to create electricity. An 80-watt power supply will generate more heat than an 80-watt power supply with low efficiency, which means that it will be more likely to overheat if you put too much demand on it without any cooling equipment present or installed (such as fans). You can choose an 80 or 120-watt power supply if you want to play high-end games or use all of your applications at full capacity without problems, but if you only want to use basic applications and do not plan on using any high-performance programs, then choose a lower wattage power supply with low efficiency (80 watts) since it will reduce heat produced by the motherboard and RAM greatly while still giving you all the power that you need.

  1. The Amperage

The amperage of a power supply is what determines how much electricity is consumed by your computer at any given moment. The higher the amperage, the more electricity it will consume and the more powerful your computer will be. If you want to play high-end games or use all of your applications at full capacity without overheating, choose a power supply with a higher amperage (120 watts). If you only want to use basic applications or do not plan on using any high-performance programs, then choose a power supply with a lower amperage (80 watts).

  1. The Input Voltage

The input voltage is the amount of electricity that is provided to your computer from an outlet in your home or office. It is measured in volts. The higher the voltage, the better chance of running your computer properly and preventing overheating; however, it will also cost more money to purchase a 60-volt power supply than an 80-volt power supply since it requires more amps to run than an 80-volt power supply does. You can choose an 80 or 120-volt power supply if you want to play high-end games or use all of your applications at full capacity without problems and without overheating, but if you only want to use basic applications or do not plan on using any high-performance programs, then choose a lower voltage (60 volts) since it will reduce heat produced by the motherboard and RAM greatly while still giving you all the power that you need.

  1. The Output Voltage

The output voltage is the amount of electricity that your computer will use from an outlet in your home or office. It is measured in volts. The higher the voltage, the better chance of running your computer properly and preventing overheating; however, it will also cost more money to purchase a 60-volt power supply than an 80-volt power supply since it requires more amps to run than an 80-volt power supply does. You can choose an 80 or 120-volt power supply if you want to play high-end games or use all of your applications at full capacity without problems and without overheating, but if you only want to use basic applications or do not plan on using any high-performance programs, then choose a lower voltage (60 volts) since it will reduce heat produced by the motherboard and RAM greatly while still giving you all the power that you need.

Conclusion 

The minimum recommended voltage for an ATX power supply is 80 volts. A lower voltage will result in less heat produced by the motherboard, RAM and CPU, but it will cost more money to purchase a 60-volt power supply than an 80-volt power supply since it requires more amps to run than an 80-volt power supply does. If you want to play high-end games or use all of your applications at full capacity without problems and without overheating, then choose a higher voltage (120 volts).

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