Seasonic PRIME TX-1300 Review
1300W · 80+ Titanium · 12VHPWR
Specdex verdict The Seasonic PRIME TX-1300 earns Specdex's editor's pick — flagship-tier with no significant weak spots, a clear recommendation in its category.
The reference 1300W PSU. 80+ Titanium efficiency, 12-year warranty, pure-DC fan profile that runs silent under most loads. Built for RTX 5090 + Threadripper builds.
Specdex doesn't run benchmarks in-house. The verdict is an editorial assessment based on manufacturer specs and public reviewer consensus. See methodology.
Seasonic PRIME TX-1300 versus its closest rivals
- +80+ Titanium efficiency
- +12-year warranty
- +Pure-DC fan profile
- −Premium pricing
- −Heavier than Gold-rated equivalents
- −Cables stiff
Who's the Seasonic PRIME TX-1300 for?
Quick verdicts for the most common buyer profiles, derived from the sub-scores above.
Compute scores trail current top-tier — look at our step-up alternatives below if performance is the priority.
At $359 this is a genuine value play — Specdex score of 93 far exceeds the typical sub-$500 baseline.
In the box
What you get when you unbox the Seasonic PRIME TX-1300.
- Power supply
- AC power cable
- Modular cables
- Mounting screws
- Cable ties
Standard contents — region/SKU may vary; confirm at retailer.
Sources & benchmarks
Cited, not generatedSpecdex does not run benchmarks in-house. We're rolling out cited public benchmark data category by category — PassMark for CPUs and GPUs is wired today; DXOMark, RTINGS, Geekbench, and NotebookCheck will follow.
Sources we use when available: PassMark for CPU/GPU, Geekbench Browser for synthetic, DXOMark for camera scores, RTINGS for TVs, monitors, and headphones. See methodology.
Specifications
Editorial · awaiting verification| Specification | Value |
|---|---|
| Warranty | 12 years |
| Specification | Value |
|---|---|
| Wattage | 1300W |
| Efficiency | 80+ Titanium |
| Cooling | 135 mm fluid-dynamic-bearing fan |
| Modular | Fully modular |
| 12VHPWR | Native cable included |
Cheaper alternatives to the Seasonic PRIME TX-1300
Same category, at least 20% cheaper, best-scoring picks from our catalog.
Step up from the Seasonic PRIME TX-1300
Higher-scoring power supplies if you've got more to spend.
More from Seasonic
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Also consider
See every head-to-head matchup for the Seasonic PRIME TX-1300 →Where the Seasonic PRIME TX-1300 appears on Specdex
Curated lists, spec rankings, and buying guides where this product is mentioned or ranked.