be quiet! Straight Power 12 850W
850 W · Platinum
Seasonic PRIME TX-1300
1300W · 80+ Titanium · 12VHPWR
Seasonic PRIME TX-1300 takes it — here’s why.
In our weighted Specdex score, be quiet! Straight Power 12 850W lands at 90 and Seasonic PRIME TX-1300 at 93. That puts Seasonic PRIME TX-1300 ahead by 3 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 Seasonic PRIME TX-1300 if…
- ✓80+ Titanium efficiency
- ✓12-year warranty
- ✓Pure-DC fan profile
Winner by scenario
Derived from the sub-score breakdown · not a separate testEfficiency
Seasonic PRIME TX-1300Compared on the efficiency sub-score
Seasonic PRIME TX-1300 leads on efficiency (100 vs 90).
Value for money
be quiet! Straight Power 12 850WSpecdex score per dollar at MSRP
be quiet! Straight Power 12 850W more score per dollar ($199 vs $359).
Score breakdown
Specs side-by-side
| Spec | be quiet! Straight Power 12 850W | Seasonic PRIME TX-1300 |
|---|---|---|
| Wattage | 850 W | 1300W |
| Efficiency | Platinum | 80+ Titanium |
| Cooling | — | 135 mm fluid-dynamic-bearing fan |
| Modular | — | Fully modular |
| 12VHPWR | — | Native cable included |
| Warranty | — | 12 years |
be quiet! Straight Power 12 850W
- +Modular cabling on most
- +ATX 3.1 / 12V-2x6 support
- +10-year warranty on many
- −Bulky on higher wattages
- −Fan noise varies by load
- −Cable length may not fit some cases
Seasonic PRIME TX-1300
- +80+ Titanium efficiency
- +12-year warranty
- +Pure-DC fan profile
- −Premium pricing
- −Heavier than Gold-rated equivalents
- −Cables stiff
FAQ: be quiet! Straight Power 12 850W vs Seasonic PRIME TX-1300
Which is better, be quiet! Straight Power 12 850W or Seasonic PRIME TX-1300? +
Seasonic PRIME TX-1300 scores 93 on our weighted rubric — ahead by 3. 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 Seasonic PRIME TX-1300 worth the price? +
At $359, Seasonic PRIME TX-1300 delivers a Specdex score of 93 — strongest in efficiency.
Does be quiet! Straight Power 12 850W or Seasonic PRIME TX-1300 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.
Which is better for efficiency, be quiet! Straight Power 12 850W or Seasonic PRIME TX-1300? +
Seasonic PRIME TX-1300 — leads on efficiency (100 vs 90). Compared on the efficiency sub-score.
Which is the better value, be quiet! Straight Power 12 850W or Seasonic PRIME TX-1300? +
be quiet! Straight Power 12 850W — more score per dollar ($199 vs $359). Specdex score per dollar at MSRP.