Corsair RM1000x Shift Review
1000 W · 80+ Gold · ATX 3.1
Specdex verdict The Corsair RM1000x Shift earns Specdex's editor's pick — flagship-tier with no significant weak spots, a clear recommendation in its category.
Corsair’s 1000 W ATX 3.1 with a 12V-2x6 connector and sideways cable shift design — quiet and ready for 5090-class GPUs.
Specdex doesn't run benchmarks in-house. The verdict is an editorial assessment based on manufacturer specs and public reviewer consensus. See methodology.
Corsair RM1000x Shift versus its closest rivals
- +ATX 3.1 + 12V-2x6
- +Side-mounted cables
- +Quiet zero-RPM
- −Bulky side depth
- −Price creep
- −Gold not Platinum
Who's the Corsair RM1000x Shift for?
Quick verdicts for the most common buyer profiles, derived from the sub-scores above.
Compute scores trail current top-tier — look at our step-up alternatives below if performance is the priority.
At $229 this is a genuine value play — Specdex score of 92 far exceeds the typical sub-$500 baseline.
In the box
What you get when you unbox the Corsair RM1000x Shift.
- Power supply
- AC power cable
- Modular cables
- Mounting screws
- Cable ties
Standard contents — region/SKU may vary; confirm at retailer.
Sources & benchmarks
Cited, not generatedSpecdex does not run benchmarks in-house. We're rolling out cited public benchmark data category by category — PassMark for CPUs and GPUs is wired today; DXOMark, RTINGS, Geekbench, and NotebookCheck will follow.
Sources we use when available: PassMark for CPU/GPU, Geekbench Browser for synthetic, DXOMark for camera scores, RTINGS for TVs, monitors, and headphones. See methodology.
Specifications
Editorial · awaiting verification| Specification | Value |
|---|---|
| Connectors | 1× 12V-2x6 (600W) |
| Specification | Value |
|---|---|
| Wattage | 1000 W |
| Efficiency | 80+ Gold |
| Standard | ATX 3.1 |
| Fan | 135 mm FDB |
Cheaper alternatives to the Corsair RM1000x Shift
Same category, at least 20% cheaper, best-scoring picks from our catalog.
Step up from the Corsair RM1000x Shift
Higher-scoring power supplies if you've got more to spend.
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Also consider
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Where the Corsair RM1000x Shift appears on Specdex
Curated lists, spec rankings, and buying guides where this product is mentioned or ranked.