be quiet!
be quiet! Straight Power 12 850W
850 W · Platinum
90
/ 100
From $199
VS
be quiet! Straight Power 12 850W wins by 1
Corsair
Corsair RM850e
850W · 80+ Gold · 12VHPWR
89
/ 100
From $139
Specdex verdict
be quiet! Straight Power 12 850W takes it — here’s why.
In our weighted Specdex score, be quiet! Straight Power 12 850W lands at 90 and Corsair RM850e at 89. That puts be quiet! Straight Power 12 850W ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.
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 RM850e if…
- ✓Sub-$150 12VHPWR-ready PSU
- ✓80+ Gold + Cybenetics Gold
- ✓7-year warranty
be quiet! Straight Power 12 850W 90
vs 89 Corsair RM850e
Score breakdown
be quiet! Straight Power 12 850W
90 efficiency 90
noise 86
cables 86
value 84
build 0
features 0
Corsair RM850e
89 efficiency 92
noise 0
cables 0
value 96
build 90
features 88
Specs side-by-side
| Spec | be quiet! Straight Power 12 850W | Corsair RM850e |
|---|---|---|
| Wattage | 850 W | 850W |
| Efficiency | Platinum | 80+ Gold |
| Cooling | — | 120 mm rifle-bearing fan |
| Modular | — | Fully modular |
| 12VHPWR | — | 1× 600W native |
| Warranty | — | 7 years |
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 RM850e
Pros
- +Sub-$150 12VHPWR-ready PSU
- +80+ Gold + Cybenetics Gold
- +7-year warranty
Cons
- −Single-rail design (mostly fine)
- −Cables ribbon-flat (some prefer round)
- −No iCUE Link
FAQ: be quiet! Straight Power 12 850W vs Corsair RM850e
Which is better, be quiet! Straight Power 12 850W or Corsair RM850e? +
be quiet! Straight Power 12 850W scores 90 on our weighted rubric — ahead by 1. 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 RM850e worth the price? +
At $139, Corsair RM850e delivers a Specdex score of 89 — strongest in value.
Does be quiet! Straight Power 12 850W or Corsair RM850e 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.