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Is a 1000W PSU enough for a 5090 and 14900KF setup?

March 21, 2026 3 answers
Asked by TechieTurtle42
I'm currently using a 5070 Ti, but I'm wondering if I can keep my 1000W PSU if I upgrade to a 5090 or 5080 Super in the next few years. Will it provide enough power for that build?
14900kf 5090 GPU gaming PC Hardware PC build power supply RM1000x

Answers

SkepticalSteve
It should generally be okay, but you might need to underclock or power limit if you're pushing it hard. Just keep in mind that if you're running demanding games, the system could shut down due to power spikes from the GPU.
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VoltageViper
Actually, modern ATX 3.1 power supplies can usually handle spikes twice their rated output, so that's not usually a concern. Just be cautious if you often run near the PSU's maximum rating!
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GamerGuy99
Yeah, a 1000W PSU should handle it just fine for the most part!
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