Corsair HX1000i
1000 W · Platinum
Corsair RM1000x Shift
1000 W · 80+ Gold · ATX 3.1
Dead heat — it comes down to priorities.
In our weighted Specdex score, Corsair HX1000i lands at 92 and Corsair RM1000x Shift at 92. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Corsair HX1000i if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
Pick Corsair RM1000x Shift if…
- ✓ATX 3.1 + 12V-2x6
- ✓Side-mounted cables
- ✓Quiet zero-RPM
Winner by scenario
Derived from the sub-score breakdown · not a separate testEfficiency
Corsair HX1000iCompared on the efficiency sub-score
Corsair HX1000i leads on efficiency (92 vs 90).
Cables
Corsair RM1000x ShiftCompared on the cables sub-score
Corsair RM1000x Shift leads on cables (96 vs 86).
Noise
Corsair RM1000x ShiftCompared on the noise sub-score
Corsair RM1000x Shift leads on noise (94 vs 86).
Value for money
Corsair RM1000x ShiftSpecdex score per dollar at MSRP
Corsair RM1000x Shift more score per dollar ($229 vs $279).
Score breakdown
Specs side-by-side
| Spec | Corsair HX1000i | Corsair RM1000x Shift |
|---|---|---|
| Wattage | 1000 W | 1000 W |
| Efficiency | Platinum | 80+ Gold |
| Standard | — | ATX 3.1 |
| Connectors | — | 1× 12V-2x6 (600W) |
| Fan | — | 135 mm FDB |
Corsair HX1000i
- +Modular cabling on most
- +ATX 3.1 / 12V-2x6 support
- +10-year warranty on many
- −Bulky on higher wattages
- −Fan noise varies by load
- −Cable length may not fit some cases
Corsair RM1000x Shift
- +ATX 3.1 + 12V-2x6
- +Side-mounted cables
- +Quiet zero-RPM
- −Bulky side depth
- −Price creep
- −Gold not Platinum
FAQ: Corsair HX1000i vs Corsair RM1000x Shift
Which is better, Corsair HX1000i or Corsair RM1000x Shift? +
Both score 92 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Corsair HX1000i worth the price? +
At $279, Corsair HX1000i delivers a Specdex score of 92 — strongest in efficiency.
Is Corsair RM1000x Shift worth the price? +
At $229, Corsair RM1000x Shift delivers a Specdex score of 92 — strongest in cables.
Does Corsair HX1000i or Corsair RM1000x Shift last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is better for efficiency, Corsair HX1000i or Corsair RM1000x Shift? +
Corsair HX1000i — leads on efficiency (92 vs 90). Compared on the efficiency sub-score.
Which is better for cables, Corsair HX1000i or Corsair RM1000x Shift? +
Corsair RM1000x Shift — leads on cables (96 vs 86). Compared on the cables sub-score.