Seasonic
Seasonic VERTEX GX ATX 3.1 Spec and Price in the United Kingdom
80 Plus Gold850WATX
The gold VERTEX: the same 160mm ATX 3.1 chassis, the same 135mm fluid-dynamic-bearing fan and hybrid fan control as the platinum PX, at 90% efficiency at half load instead of 92%. It ships at 750W, 850W, 1000W and 1200W with a 12V-2x6 cable included, and carries Seasonic's twelve-year warranty. For most single-GPU builds this is the VERTEX to buy — the PX's extra efficiency point rarely pays for itself over the life of the machine.
Current best price
No tracked price — this page compares specifications alone.
Specifications
- Wattage
- Efficiency
- 80 Plus Gold
- Form factor
- ATX
- Modular
- Fully modular
- ATX version
- 3.1
- Fan size
- 135 mm
- Length
- 160 mm
- Zero-RPM mode
- Yes
- Warranty
- 12 years
Wattages
| Configuration | Part number |
|---|---|
| 750W | — |
| 850W | — |
| 1000W | — |
| 1200W | — |
Guides for this category
What owners and reviewers say
Summarised from 1 source(s), reviewed September 13, 2026. A source is counted only where it names this model exactly. How we track prices
Commonly praised
- Uses high-temperature-rated Japanese capacitors, deliberately over-specified to sustain above its rating.
- Supports the latest power standards with a native high-power connector, and load regulation is among the tightest tested.
Commonly criticised
- Quality comes at a price, and it is hard to find in stock.
Sources behind this summary
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.