Seasonic PRIME TX-1300
1300W · 80+ Titanium · 12VHPWR
Corsair SF1000L
1000 W · Gold
Seasonic PRIME TX-1300 takes it — here’s why.
In our weighted Specdex score, Seasonic PRIME TX-1300 lands at 93 and Corsair SF1000L at 91. That puts Seasonic PRIME TX-1300 ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Seasonic PRIME TX-1300 if…
- ✓80+ Titanium efficiency
- ✓12-year warranty
- ✓Pure-DC fan profile
Pick Corsair SF1000L if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
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 91).
Value for money
Corsair SF1000LSpecdex score per dollar at MSRP
Corsair SF1000L more score per dollar ($299 vs $359).
Score breakdown
Specs side-by-side
| Spec | Seasonic PRIME TX-1300 | Corsair SF1000L |
|---|---|---|
| Wattage | 1300W | 1000 W |
| Efficiency | 80+ Titanium | Gold |
| Cooling | 135 mm fluid-dynamic-bearing fan | — |
| Modular | Fully modular | — |
| 12VHPWR | Native cable included | — |
| Warranty | 12 years | — |
Seasonic PRIME TX-1300
- +80+ Titanium efficiency
- +12-year warranty
- +Pure-DC fan profile
- −Premium pricing
- −Heavier than Gold-rated equivalents
- −Cables stiff
Corsair SF1000L
- +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
FAQ: Seasonic PRIME TX-1300 vs Corsair SF1000L
Which is better, Seasonic PRIME TX-1300 or Corsair SF1000L? +
Seasonic PRIME TX-1300 scores 93 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.
Is Seasonic PRIME TX-1300 worth the price? +
At $359, Seasonic PRIME TX-1300 delivers a Specdex score of 93 — strongest in efficiency.
Is Corsair SF1000L worth the price? +
At $299, Corsair SF1000L delivers a Specdex score of 91 — strongest in efficiency.
Does Seasonic PRIME TX-1300 or Corsair SF1000L 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, Seasonic PRIME TX-1300 or Corsair SF1000L? +
Seasonic PRIME TX-1300 — leads on efficiency (100 vs 91). Compared on the efficiency sub-score.
Which is the better value, Seasonic PRIME TX-1300 or Corsair SF1000L? +
Corsair SF1000L — more score per dollar ($299 vs $359). Specdex score per dollar at MSRP.