Best PSU for RTX 3080 Ti

Best PDU for RTX 3080 Ti? Here’s our top picks.

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A power supply unit (PSU) is a crucial component in any computer build, as it is responsible for providing power to all the other components. The RTX 3080 Ti is still one of the greatest graphics cards ever made. It has been surpassed by the new RTX 4000 series, but it’s still a great GPU. If you want to use this GPU, you are going to have to meet the power demands of this beast of a card.

The RTX 3080 Ti is a powerful card that requires a lot of power to run. NVIDIA recommends a minimum of 650 watts for the RTX 3080 Ti, but it’s always good to have some headroom to ensure stable operation and accommodate future upgrades. As a result, it is recommended to choose a PSU that is at least 750 watts.

Best PSU for RTX 3080 Ti

Corsair RM850x

80 Plus certification
Fully Modular

As it’s been stated previously, Nvidia recommends at least 750 watts for the RTX 3080 Ti. But if you want to overclock your GPU, you may need a lot more than that. Our top option for this graphics card is the Corsair RM850x. It’s 80 Plus Gold rated, highly efficient with over 91% efficiency, it’s also fully modular, meaning you can remove any cable you don’t need, thus you can keep your setup neat and tidy. It has 5x SATA/PATA connectors, 1 motherboard, and 5 PCIe/CPU.

Seasonic Prime TX-850

850 W
80 Plus certification
Fully modular

The Seasonic Prime TX-850 is a great choice for those who want to run their RTX 3080 Ti at high overclocks, as it provides clean and stable power delivery. It is also fully modular and it has an efficiency rating of over 92%.

EVGA SuperNOVA 750W G2, 80+ GOLD

The EVGA SuperNOVA 750W G3 is another great option for the RTX 3080 Ti. It also has a high-efficiency rating of over 90%, and it is fully modular as well. The only drawback to this PSU is the fact that it’s only 750W, which may not be enough if you’re overclocking the GPU. This PSU also has a 10-year warranty, which is great peace of mind.

Best Budget PSU for RTX 3080 Ti

Corsair CP-9020099-EU PSU CX850M Power Supply Unit, Black

Corsair CP-9020099-EU PSU CX850M Power Supply Unit, Black

Output wattage
Connector type
ATX, PCI Express
Cooling method

For those looking for a more budget-friendly option, the Corsair CX850M is a great choice. This power supply is still capable of providing enough power for an RTX 3080 Ti and it also has an 80+ Bronze efficiency rating.

The Corsair CX850M is semi-modular, this is probably its biggest downside, as you have to live with the fixed cables, but it will help to keep things organized. It comes with a 3-year warranty which is great for a budget-friendly PSU.


Overall when choosing the right PSU the only thing that matters is the wattage. Many PSUs come with some fancy extra features, which are great, but strictly speaking, the only thing you need for the RTX 3080 Ti is a PSU that can match its energy consumption.

Some of the top options include the Corsair RM850x, the EVGA SuperNOVA 750W G3, and the Seasonic Prime TX-850. And for a budget-friendly option, The Corsair CX850M is a good choice. Ultimately, the choice of PSU depends on your specific needs and your budget.

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