Seasonic · Released Feb 2023
Seasonic Vertex PX-1200 Review
1200 W · 80+ Platinum · ATX 3.0
Seasonic’s Platinum flagship — reference-quality voltage regulation, quiet, and a 12-year warranty.
Compare with Corsair RM1000x Shift → From $289
Verdex Score
93
/ 100
efficiency 96
noise 92
cables 90
Pros
- +Rock-solid ripple
- +Platinum efficiency
- +Long 12-year warranty
Cons
- −Heavy at 2.6 kg
- −Expensive
- −Cables stiff
Full score breakdown
efficiency 96
noise 92
cables 90
value 86
Specifications
Wattage
1200 W
Efficiency
80+ Platinum
Standard
ATX 3.0
Connectors
1× 16-pin 12VHPWR (600W)