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