Seasonic
Seasonic Focus GX-850
850 W · Gold
88
/ 100
From $149
VS
Seasonic PRIME TX-1300 wins by 5
Seasonic
Seasonic PRIME TX-1300
1300W · 80+ Titanium · 12VHPWR
93
/ 100
From $359
Specdex verdict
Seasonic PRIME TX-1300 takes it — here’s why.
In our weighted Specdex score, Seasonic Focus GX-850 lands at 88 and Seasonic PRIME TX-1300 at 93. That puts Seasonic PRIME TX-1300 ahead by 5 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Seasonic Focus GX-850 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
Seasonic Focus GX-850 88
vs 93 Seasonic PRIME TX-1300
Score breakdown
Seasonic Focus GX-850
88 efficiency 88
noise 86
cables 86
value 84
build 0
features 0
Seasonic PRIME TX-1300
93 efficiency 100
noise 0
cables 0
value 84
build 96
features 90
Specs side-by-side
| Spec | Seasonic Focus GX-850 | Seasonic PRIME TX-1300 |
|---|---|---|
| Wattage | 850 W | 1300W |
| Efficiency | Gold | 80+ Titanium |
| Cooling | — | 135 mm fluid-dynamic-bearing fan |
| Modular | — | Fully modular |
| 12VHPWR | — | Native cable included |
| Warranty | — | 12 years |
Seasonic Focus GX-850
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
Seasonic PRIME TX-1300
Pros
- +80+ Titanium efficiency
- +12-year warranty
- +Pure-DC fan profile
Cons
- −Premium pricing
- −Heavier than Gold-rated equivalents
- −Cables stiff
FAQ: Seasonic Focus GX-850 vs Seasonic PRIME TX-1300
Which is better, Seasonic Focus GX-850 or Seasonic PRIME TX-1300? +
Seasonic PRIME TX-1300 scores 93 on our weighted rubric — ahead by 5. Your best pick depends on the sub-scores above.
Is Seasonic Focus GX-850 worth the price? +
At $149, Seasonic Focus GX-850 delivers a Specdex score of 88 — 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 Seasonic Focus GX-850 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.