Corsair · ATX

Corsair RM1000x

$180

1000W is the recommended PSU for RTX 4090 builds. Handles the 450W GPU plus a high-TDP CPU with 200W+ headroom for transient spikes. Proven reliability from Corsair's RM line. The most popular choice for prosumer AI builds.

Best For:RTX 4090 builds — the most popular AI PSU choice

Specifications

BrandCorsair

Wattage1000W

Efficiency80+ Gold

ModularFull

Form FactorATX

MSRP$180

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