Corsair RM850x Shift
850 W · Gold
be quiet! Dark Power 13 1000W
1000 W · Titanium · ATX 3.0
be quiet! Dark Power 13 1000W takes it — here’s why.
In our weighted Specdex score, Corsair RM850x Shift lands at 90 and be quiet! Dark Power 13 1000W at 94. That puts be quiet! Dark Power 13 1000W ahead by 4 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Corsair RM850x Shift if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
Pick be quiet! Dark Power 13 1000W if…
- ✓80+ Titanium efficiency
- ✓Near-silent under load
- ✓12VHPWR included
Winner by scenario
Derived from the sub-score breakdown · not a separate testEfficiency
be quiet! Dark Power 13 1000WCompared on the efficiency sub-score
be quiet! Dark Power 13 1000W leads on efficiency (98 vs 90).
Noise
be quiet! Dark Power 13 1000WCompared on the noise sub-score
be quiet! Dark Power 13 1000W leads on noise (96 vs 86).
Cables
be quiet! Dark Power 13 1000WCompared on the cables sub-score
be quiet! Dark Power 13 1000W leads on cables (90 vs 86).
Value for money
Corsair RM850x ShiftSpecdex score per dollar at MSRP
Corsair RM850x Shift more score per dollar ($179 vs $329).
Score breakdown
Specs side-by-side
| Spec | Corsair RM850x Shift | be quiet! Dark Power 13 1000W |
|---|---|---|
| Wattage | 850 W | 1000 W |
| Efficiency | Gold | 80+ Titanium |
| Standard | — | ATX 3.0 |
| Connectors | — | 1× 12VHPWR (600W) |
Corsair RM850x Shift
- +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
be quiet! Dark Power 13 1000W
- +80+ Titanium efficiency
- +Near-silent under load
- +12VHPWR included
- −Very expensive
- −Heavy
- −Overlooked aesthetically vs competitors
FAQ: Corsair RM850x Shift vs be quiet! Dark Power 13 1000W
Which is better, Corsair RM850x Shift or be quiet! Dark Power 13 1000W? +
be quiet! Dark Power 13 1000W scores 94 on our weighted rubric — ahead by 4. Your best pick depends on the sub-scores above.
Is Corsair RM850x Shift worth the price? +
At $179, Corsair RM850x Shift delivers a Specdex score of 90 — strongest in efficiency.
Is be quiet! Dark Power 13 1000W worth the price? +
At $329, be quiet! Dark Power 13 1000W delivers a Specdex score of 94 — strongest in efficiency.
Does Corsair RM850x Shift or be quiet! Dark Power 13 1000W 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 RM850x Shift or be quiet! Dark Power 13 1000W? +
be quiet! Dark Power 13 1000W — leads on efficiency (98 vs 90). Compared on the efficiency sub-score.
Which is better for noise, Corsair RM850x Shift or be quiet! Dark Power 13 1000W? +
be quiet! Dark Power 13 1000W — leads on noise (96 vs 86). Compared on the noise sub-score.