be quiet!
be quiet! Straight Power 12 850W
850 W · Platinum
90
/ 100
From $199
VS
EcoFlow Delta Pro 3 wins by 2
EcoFlow
EcoFlow Delta Pro 3
Portable power station · 2024
92
/ 100
From $3,699
Specdex verdict
EcoFlow Delta Pro 3 takes it — here’s why.
In our weighted Specdex score, be quiet! Straight Power 12 850W lands at 90 and EcoFlow Delta Pro 3 at 92. That puts EcoFlow Delta Pro 3 ahead by 2 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 EcoFlow Delta Pro 3 if…
- ✓LiFePO4 chemistry on modern SKUs (4000+ cycles)
- ✓Solar input
- ✓Multiple AC/DC/USB-C outputs
be quiet! Straight Power 12 850W 90
vs 92 EcoFlow Delta Pro 3
Score breakdown
be quiet! Straight Power 12 850W
90 efficiency 90
noise 86
cables 86
value 84
EcoFlow Delta Pro 3
92 efficiency 87
noise 86
cables 90
value 80
Specs side-by-side
| Spec | be quiet! Straight Power 12 850W | EcoFlow Delta Pro 3 |
|---|---|---|
| Wattage | 850 W | — |
| Efficiency | Platinum | — |
| Type | — | Portable power station |
| Release year | — | 2024 |
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
EcoFlow Delta Pro 3
Pros
- +LiFePO4 chemistry on modern SKUs (4000+ cycles)
- +Solar input
- +Multiple AC/DC/USB-C outputs
Cons
- −Heavy
- −Pricey per Wh
- −Shipping restrictions (Li-ion)
FAQ: be quiet! Straight Power 12 850W vs EcoFlow Delta Pro 3
Which is better, be quiet! Straight Power 12 850W or EcoFlow Delta Pro 3? +
EcoFlow Delta Pro 3 scores 92 on our weighted rubric — ahead by 2. 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 EcoFlow Delta Pro 3 worth the price? +
At $3,699, EcoFlow Delta Pro 3 delivers a Specdex score of 92 — strongest in cables.
Does be quiet! Straight Power 12 850W or EcoFlow Delta Pro 3 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.