A black Seasonic Focus GX-1000 power supply with a hexagonal grille design and the 'PRIME' logo prominently displayed on its front.

Seasonic Focus GX-1000 1000W: efficiency wins critics, noise splits

Reviewers praised high efficiency at low loads but noted slightly high noise at very low loads.

1 min read

Photos

A close-up side profile of a Seasonic Focus GX-1000 power supply, showcasing its vented design and 'PRIME' branding.
The Seasonic Focus GX-1000 power supply is shown from a three-quarter angle, highlighting its black finish and vented design.
A Seasonic Focus GX-1000 power supply is shown in a side profile, highlighting its ventilation grilles and cables.
The Seasonic Focus GX-1000 power supply is shown in a three-quarter angle, highlighting its textured front panel and the 'PRIME' branding.

What reviewers say

  • Tom’s Hardware praises the Seasonic Focus GX ATX 3 as a high‑quality, efficient and quiet power supply that delivers reliable performance for demanding systems, though it notes its higher price and relatively conservative connector count.

    www.tomshardware.com ↗
  • The LTT Labs review of the Seasonic Focus GX‑1000 ATX 3 (2024) highlights its solid performance, high efficiency at low loads, and good load regulation across most rails. The reviewer notes that the only drawback observed was a slightly high noise level at very low loads, but this did not affect overall functionality.

    www.lttlabs.com ↗

Our take

Based on 2 reviews

Tom's Hardware and LTT Labs both praise the Seasonic Focus GX-1000 for reliable performance and high efficiency, with LTT Labs specifically noting good load regulation across most rails. Both outlets confirm its overall quality and suitability for demanding systems, though neither disputes its core functionality.

However, they split on noise: Tom's Hardware calls it quiet, while LTT Labs found slightly high noise at very low loads. This means buyers prioritizing silence may want to test it themselves, while those valuing efficiency and stability will find it solid.

Pros

  • High efficiency at low loads
  • Reliable performance for demanding systems
  • Good load regulation across most rails

Cons

  • Slightly high noise at very low loads
  • Relatively conservative connector count

Best for: Buyers prioritizing efficiency and stability over absolute silence should consider it; those needing maximum connectors or zero noise may look elsewhere.

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