be quiet!
be quiet! Straight Power 12 850W
850 W · Platinum
90
/ 100
From $199
VS
Corsair
Corsair RM850x Shift
850 W · Gold
90
/ 100
From $179
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, be quiet! Straight Power 12 850W lands at 90 and Corsair RM850x Shift at 90. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick be quiet! Straight Power 12 850W if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
Pick Corsair RM850x Shift if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
be quiet! Straight Power 12 850W 90
vs 90 Corsair RM850x Shift
Score breakdown
be quiet! Straight Power 12 850W
90 efficiency 90
noise 86
cables 86
value 84
Corsair RM850x Shift
90 efficiency 90
noise 86
cables 86
value 84
Specs side-by-side
| Spec | be quiet! Straight Power 12 850W | Corsair RM850x Shift |
|---|---|---|
| Wattage | 850 W | 850 W |
| Efficiency | Platinum | Gold |
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
Corsair RM850x Shift
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: be quiet! Straight Power 12 850W vs Corsair RM850x Shift
Which is better, be quiet! Straight Power 12 850W or Corsair RM850x Shift? +
Both score 90 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
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.
Is Corsair RM850x Shift worth the price? +
At $179, Corsair RM850x Shift delivers a Specdex score of 90 — strongest in efficiency.
Does be quiet! Straight Power 12 850W or Corsair RM850x 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.