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October 14, 2023

Is 850 Watts Enough For RTX 3090?

The RTX 3090 is one of Nvidia’s most powerful graphics cards, and it requires a lot of power to run. Many people assume that a high-quality, 750W power supply is enough to support this GPU, but is it?

The answer isn’t as simple as “yes” or “no.” While a good 850W PSU should be enough to power your 3090, it’s better to go for more than that. That way, you can be safe in case there’s a power spike that could cause your GPU to overheat and shut down. Also, if you plan to upgrade your PC in the future, you’ll have plenty of extra power to handle any additional graphics cards.

That being said, the best power supplies to buy for an RTX 3090 are the ones that have a gold efficiency rating. This means they can deliver more power with less heat and will be able to operate for longer. Fortunately, there are a number of 850W PSUs on the market that have a gold efficiency rating, including the EVGA Supernova 850 G7, which has excellent transient handling and load regulation.