Best Power Supply for RTX 3080 [750W Recommended!]

PSU Tier List

Nvidia have officially announced the new 3000 series Ampere Graphics cards and with that come new Power Supply requirements.

TL;DR – Best PSU’s for Nvidia RTX 3080

Can’t be bothered to read below? No worries, these are the PSU’s we suggest;

NameForm FactorPrice
be quiet! | Dark Power Pro 11ATXPrice not available
Cooler Master | V PlatinumATXPrice not available
Corsair | HX PlatinumATX$135.32
SilverStone |SFX-L, TitaniumSFX-L$199.99
Corsair | SF750SFX$183.51
Recommendations based on Geforce RTX 3080 Founders Edition Specifications

What you need to know about the power requirements of the RTX 3080

One of the most highly anticipated Graphics Cards of all time, the new RTX 3080, sits at the top of the consumer friendly lineup only bested by the Titan replacing (wallet destroying) RTX 3090.

With the new RTX 3090 not only comes a new Founders Edition card design, utilising push pull fans, but also a hefty 100 Watt power bump in recommended Power Supply units over the outgoing 2080 Super.

Geforce RTX 3080 Full Specs

Let’s take a look at the full specs for the RTX 3080.

GPU Engine Specs:NVIDIA CUDA® Cores8704
Boost Clock (GHz)1.71
Base Clock (GHz)1.44
Memory Specs:Standard Memory Config10 GB GDDR6X
Memory Interface Width320-bit
Technology Support:Ray Tracing Cores2nd Generation
Tensor Cores3rd Generation
NVIDIA ArchitectureAmpere
Microsoft DirectX® 12 UltimateYes
PCI Express Gen 4Yes
NVIDIA® GeForce ExperienceYes
NVIDIA FreeStyleYes
NVIDIA ShadowPlayYes
NVIDIA HighlightsYes
Game Ready DriversYes
NVIDIA Studio DriversYes
Vulkan RT API, OpenGL 4.6Yes
HDMI 2.1Yes
DisplayPort 1.4aYes
NVIDIA Encoder7th Generation
NVIDIA Decoder5th Generation
VR ReadyYes
Display Support:Maximum Digital Resolution (1)7680×4320
Standard Display ConnectorsHDMI 2.1, 3x DisplayPort 1.4a
Multi Monitor4
Founders Edition Card Dimensions:Length11.2″ (285 mm)
Width4.4″ (112 mm)
Founders Edition Thermal Power Specs:Maximum GPU Temperature (in C)93
Graphics Card Power (W)320
Recommended System Power (W) (2)750
Supplementary Power Connectors2x PCIe 8-pin

Geforce RTX 3080 Power Supply Requirement

We’ve seen the full spec list above, but let’s focus now on the Power Specs, specifically what size PSU you need for a RTX 3080.

Founders Edition Thermal Power Specs:Maximum GPU Temperature (in C)93
Graphics Card Power (W)320
Recommended System Power (W) (2)750
Supplementary Power Connectors2x PCIe 8-pin

That’s right an eye watering 750W Power Supply is the new recommendation.

But wait, don’t toss aside your existing power supply just yet, let’s dive in a little deeper to what (2) is all about..

Recommendation is made based on PC configured with an Intel Core i9-10900K processor. A lower power rating may work depending on system configuration.


So that’s using a super high end (and a little toasty) Intel Core i9-10900k, It’s therefore reasonable to assume that you might just get away with a lower powered power supply if your other components need a little less juice.

However, for the purpose of our recommendations we are only recommending 750+ w cards to ensure comparability.

Best Power Supplies for Nvidia Geforce RTX 3080

The power supplies listed below are primarily based from listings in our PSU tier list.

Best ATX Power Supply for Nvidia Geforce RTX 3080

Below we list the best full sized ATX PSU’s suitable for the Nvidia Geforce RTX 3080

be quiet! | Dark Power Pro 11 | link

be quiet! Dark Power Pro 11 750W, BN652, Modular, 80 Plus Platinum, Power Supply
  • 80Plus PLATINUM efficiency (up to 94%) and unmatched power stability
  • Virtually inaudible silent Wings 3 135mm fan with fluid-dynamic bearing
  • 6-Pole fan motor and IC motor control for smooth low-speed operation and reduced noise
  • Large funnel-shaped fan intake facilitates high airflow with less turbulence
  • Overclocking key switches between four 12V-rails and ONE MASSIVE 12V-rail

Cooler Master | V Platinum| link

Cooler Master V-Series V1300 1300W Alimentatore 80+ Platinum Modular 135mm Ventilatore
  • 80 PLUS Platinum Certified This certification guarantees a typical efficiency of 92% under normal operating conditions.
  • Thermal Regulation Mode (TRM) : TRM regulates the temperature of the PSU by keeping a constant and quiet fan speed up to 60% of maximum load.
  • Performance Driven Topology : The full-bridge LLC resonant converter and DC-DC technology offer reliable and stable voltage outputs for safer, more reliable performance and higher efficiency.
  • Single/Multi-Rail Switch : Built in rail switch allows users to change between multi and single rail power output settings.
  • 16 AWG PCI-e Cables : The thicker 16 AWG PCI-e cables allow for higher currents, thereby improving both efficiency and safety.

Corsair | HX Platinum | link

CORSAIR HX Series, HX850, 850 Watt, 80+ Platinum Certified, Fully Modular Power Supply
  • 80 plus Platinum runs cooler and uses less power than less efficient power supplies
  • Fully modular allows user to only use the cables they need for a cleaner looking build with better airflow
  • 10-Year Backed by CORSAIR legendary technical support and customer service
  • 135mm FDB fan with Zero RPM mode virtually silent operation at low loads
  • plus12V rail switch gives the user The choice of a single plus12V rail or multiple plus12V rails

Best SFX-L Power Supply for Nvidia Geforce RTX 3080

Below we’ve listed the best SFX-L PSU suitable for the Nvidia Geforce RTX 3080

SilverStone |SFX-L, 80 Plus Titanium | link

SilverStone Technology 800W SFX-L, 80 Plus Titanium 100% Modular Power Supply with Japanese Capacitors SX800-LTI-USA, SST-SX800-LTI-USA
  • 800W Continuous power output rated for 24/7 operation. Class-leading single +12V rail with 66a. Strict 3% Voltage regulation and low ripple & noise
  • High quality construction with all Japanese Capacitors
  • High efficiency with 80 PLUS Titanium certification
  • Silent running 120mm fan with advanced semi-fan less operation. Support Quad PCI-E 8/6pin connectors
  • 100% modular short cables with flexible flat arrays. Sfx-l form Factor for use in small form Factor computers

Best SFX Power Supply for Nvidia Geforce RTX 3080

Below we’ve listed the best SFX PSU suitable for the Nvidia Geforce RTX 3080.

Corsair | SF Series, SF750, 750 Watt, SFX, 80+ Platinum link

Corsair SF Series, SF750, 750 Watt, SFX, 80+ Platinum Certified, Fully Modular Power Supply (CP-9020186-NA)
  • Harness 750 continuous watts In SFX form, perfect for the most power-dense small-form-factor PCs
  • Ensures ultra-high efficiency operation for less excess heat and lower operating costs
  • Flexible Para cord sleeved cables make routing and cable management incredibly easy


So there you have it, a new series of GPU’s and a shopping list of power supplies to power them.

If you think we’ve missed the best psu for RTX 3080 please let us know in the comments below and we’ll update our list.

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