SeaSonic X 1250W
Category: Power Supply
Manufacturer: Seasonic
Wattage: 1250W
Efficiency: 80+ Gold
Modular: full
SeaSonic X 1250W
Wattage
1250W
Efficiency
80+ Gold
Modular
full
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Overview
A 1250W unit with 80+ Gold efficiency certification and full cabling. It uses the ATX form factor — confirm your case lists ATX support. 1250W covers a 300W+ flagship GPU plus a high-end CPU with margin to spare. Skimping on the PSU is a false economy; better efficiency ratings usually mean better components and longer warranties.
PlanMyPC's builder flags compatibility problems with the rest of your parts automatically. Support and warranty service run through Seasonic, with terms that vary by region. Every published spec is tabulated below, and compatibility against your current part list is checked automatically. The category page surfaces comparable models near the same price, which makes shortlisting against this power supply straightforward.
| Specification | Value |
|---|---|
| Modular | full |
| Wattage | 1,250 W |
| Efficiency | 80+ Gold |
| Form Factor | ATX |
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