Corsair
Corsair RM1000x Shift
1000 W · 80+ Gold · ATX 3.1
92
/ 100
From $229
VS
Corsair RM1000x Shift wins by 2
be quiet!
be quiet! Straight Power 12 850W
850 W · Platinum
90
/ 100
From $199
Specdex verdict
Corsair RM1000x Shift takes it — here’s why.
In our weighted Specdex score, Corsair RM1000x Shift lands at 92 and be quiet! Straight Power 12 850W at 90. That puts Corsair RM1000x Shift ahead by 2 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 be quiet! Straight Power 12 850W if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
Corsair RM1000x Shift 92
vs 90 be quiet! Straight Power 12 850W
Score breakdown
Corsair RM1000x Shift
92 efficiency 90
noise 94
cables 96
value 88
be quiet! Straight Power 12 850W
90 efficiency 90
noise 86
cables 86
value 84
Specs side-by-side
| Spec | Corsair RM1000x Shift | be quiet! Straight Power 12 850W |
|---|---|---|
| Wattage | 1000 W | 850 W |
| Efficiency | 80+ Gold | Platinum |
| Standard | ATX 3.1 | — |
| Connectors | 1× 12V-2x6 (600W) | — |
| Fan | 135 mm FDB | — |
Corsair RM1000x Shift
Pros
- +ATX 3.1 + 12V-2x6
- +Side-mounted cables
- +Quiet zero-RPM
Cons
- −Bulky side depth
- −Price creep
- −Gold not Platinum
be quiet! Straight Power 12 850W
Pros
- +Modular cabling on most
- +ATX 3.1 / 12V-2x6 support
- +10-year warranty on many
Cons
- −Bulky on higher wattages
- −Fan noise varies by load
- −Cable length may not fit some cases
FAQ: Corsair RM1000x Shift vs be quiet! Straight Power 12 850W
Which is better, Corsair RM1000x Shift or be quiet! Straight Power 12 850W? +
Corsair RM1000x Shift scores 92 on our weighted rubric — ahead by 2. 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 be quiet! Straight Power 12 850W worth the price? +
At $199, be quiet! Straight Power 12 850W delivers a Specdex score of 90 — strongest in efficiency.
Does Corsair RM1000x Shift or be quiet! Straight Power 12 850W 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.