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HomePower SuppliesCorsairCorsair RM1000x (2024)
Global Power SuppliesCorsair RM1000x (2024)
Corsair

Corsair RM1000x (2024)

1000 W • 80 PLUS Gold • Fully Modular • 10 years

1000 WPower
80 PLUS GoldEfficiency
Fully ModularModularity
10 yearsWarranty
KACBU

Should I buy it?

Corsair RM1000x (2024)
CONSIDER
    Great choice if these matter:
    • RTX 5090 or dual-GPU-adjacent builds that need real transient headroom
    • Builders who would rather buy wattage once than upgrade the PSU with the next GPU
    • Quiet high-wattage systems where the A noise rating matters
    Watch out for:
    • 1000 W is more than most single-GPU builds need — it is a flagship-card purchase, not a default one
    • Costs meaningfully more than the 850x for headroom many builds will never use
    Launch price $209.99 (US)
    Regret riskLOWlimited data
    Main risks
    • 1000 W is more than most single-GPU builds need — it is a flagship-card purchase, not a default one
    • Costs meaningfully more than the 850x for headroom many builds will never use
    • Gold, not Platinum — efficiency purists can find higher-rated 1000 W units
    The risk level is computed from the release date and verified weaknesses. The confidence score appears only once enough owner reports exist.
    Alternatives
    Corsair RM850x (2024)cheaper at launch
    be quiet! Pure Power 12 M 850W
    This box relies only on verified specs, the release date and editorial assessment; owner reports join them as they come in. We do not predict prices.
    PowerConnectorsLaunchSpecificationsFAQAlternatives
    Power

    How much of it does it clean?

    Continuous power and efficiency certification — the PSU's real job.

    POWER

    Watt on the label, quality shows under load.

    1000 W

    1000 W — Continuous power

    1000 W
    1000 WContinuous power
    Connectors

    Which cards can it power?

    The cables required by modern graphics cards are listed here.

    CONNECTORS

    16-pin cable, prerequisite for next-gen graphics card.

    1× 12V-2x6 (native, 600W)

    1× 12V-2x6 (native, 600W) — 16-pin (12V-2x6)

    1× 12V-2x6 (native, 600W)
    1× 12V-2x6 (native, 600W)16-pin (12V-2x6)
    Who Is It For?

    Where does it stand out?

    A usage guide built from the specs and the editors' tags; not a test result.

    RTX 5090 or dual-GPU-adjacent builds that need real transient headroom

    Good fit
    Builders who would rather buy wattage once than upgrade the PSU with the next GPU

    Good fit
    Quiet operation

    Quiet high-wattage systems where the A noise rating matters

    Good fit
    Editorial Analysis

    Strengths and points to consider

    The Kacbu editors' assessment of the specifications the maker publishes. We do not test devices ourselves, so nothing here is a measured result. Anything taken from an independent review is shown with its publication and date in the Press section.

    Strengths based on the specs
    600 W-rated native 12V-2x6 cable is built specifically for RTX 4090/5090-class transient spikes
    Cybenetics Gold with an A noise rating keeps 1000 W quiet under real gaming load
    10-year warranty and all-Japanese capacitors carry the RMx line's reputation up a wattage tier
    Zero-RPM mode keeps the fan off entirely at low-to-moderate load
    Headroom to add a second GPU-adjacent load (capture card, extra drives) without recalculating a budget PSU
    Things to consider
    1000 W is more than most single-GPU builds need — it is a flagship-card purchase, not a default one
    Costs meaningfully more than the 850x for headroom many builds will never use
    Gold, not Platinum — efficiency purists can find higher-rated 1000 W units
    Historical Product Info

    Official launch details

    Instead of tracking today's retail price, Kacbu keeps the product's official launch information as a reference.

    US launch price$209.99

    Corsair RM1000x (2024)'s launch price.

    Source: the maker's page
    Design🇺🇸 United States
    Manufacturing🇨🇳 China

    Corsair is headquartered in the US and engineers the RMx line there. Like nearly all consumer power supplies, the units are built by specialist ODM partners in China.

    This is not the current retail price — it shows the product's historical, official launch information.
    Specifications

    Corsair RM1000x (2024) specifications

    Click a linked value to see other products that share that same spec, and leave a comment on that spec.

    General

    Family
    RMx
    Segment
    High-end / Silent
    Manufacturer
    Corsair

    Power

    Power Rails
    Single 12V rail
    Wattage
    1000 W

    Efficiency

    Efficiency Rating
    80 PLUS Gold
    Cybenetics Certification
    Cybenetics Gold · A noise rating

    Design

    Fan Bearing
    Fluid dynamic bearing (FDB) fan
    Modularity
    Fully Modular
    Standard
    ATX 3.1
    Capacitors
    100% Japanese capacitors (105°C)
    Fan Control
    Zero RPM mode

    Connectors

    16-pin Connector
    1× 12V-2x6 (native, 600W)

    Form Factor

    Form Factor
    ATX

    Warranty

    Warranty
    10 Year
    FAQ

    The most common questions about this product

    What the numbers on the spec sheet actually mean in day-to-day use.

    Does the Corsair RM1000x (2024) have a 12V-2x6 connector?
    Yes — a native 12V-2x6 cable rated for 600 W, sized specifically for RTX 4090/5090-class graphics cards.
    How long is the RM1000x warranty?
    10 years, matching the rest of the RMx line.
    Is 1000 W overkill for one GPU?
    For most single-GPU builds, yes. It earns its place with flagship cards that draw large transient power spikes, or builds planning future upgrades without a second PSU purchase.
    How does it differ from the RM850x?
    Same platform, efficiency rating, warranty and connector design — only the continuous wattage differs, 1000 W here against 850 W.
    Shared Hardware

    Products that share this hardware

    This product's standout specs. You can jump to other models that use the same value.

    Wattage1000 W3 more productsEfficiency Rating80 PLUS Gold5 more productsModularityFully Modular13 more products
    Alternatives

    Other models in the same category

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