Corsair RM1000x Shift
1000 W · 80+ Gold · ATX 3.1
Corsair SF1000L
1000 W · Gold
Corsair RM1000x Shift takes it — here’s why.
In our weighted Specdex score, Corsair RM1000x Shift lands at 92 and Corsair SF1000L at 91. That puts Corsair RM1000x Shift ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Corsair RM1000x Shift if…
- ✓ATX 3.1 + 12V-2x6
- ✓Side-mounted cables
- ✓Quiet zero-RPM
Pick Corsair SF1000L if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
Winner by scenario
Derived from the sub-score breakdown · not a separate testCables
Corsair RM1000x ShiftCompared on the cables sub-score
Corsair RM1000x Shift leads on cables (96 vs 86).
Efficiency
TieCompared on the efficiency sub-score
Effectively tied — neither pulls a 2-point weighted lead.
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 $299).
Score breakdown
Specs side-by-side
| Spec | Corsair RM1000x Shift | Corsair SF1000L |
|---|---|---|
| Wattage | 1000 W | 1000 W |
| Efficiency | 80+ Gold | Gold |
| Standard | ATX 3.1 | — |
| Connectors | 1× 12V-2x6 (600W) | — |
| Fan | 135 mm FDB | — |
Corsair RM1000x Shift
- +ATX 3.1 + 12V-2x6
- +Side-mounted cables
- +Quiet zero-RPM
- −Bulky side depth
- −Price creep
- −Gold not Platinum
Corsair SF1000L
- +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
FAQ: Corsair RM1000x Shift vs Corsair SF1000L
Which is better, Corsair RM1000x Shift or Corsair SF1000L? +
Corsair RM1000x Shift scores 92 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.
Is Corsair RM1000x Shift worth the price? +
At $229, Corsair RM1000x Shift delivers a Specdex score of 92 — strongest in cables.
Is Corsair SF1000L worth the price? +
At $299, Corsair SF1000L delivers a Specdex score of 91 — strongest in efficiency.
Does Corsair RM1000x Shift or Corsair SF1000L 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 cables, Corsair RM1000x Shift or Corsair SF1000L? +
Corsair RM1000x Shift — leads on cables (96 vs 86). Compared on the cables sub-score.
Which is better for noise, Corsair RM1000x Shift or Corsair SF1000L? +
Corsair RM1000x Shift — leads on noise (94 vs 86). Compared on the noise sub-score.