Corsair RM850x Shift (2025) vs Seasonic Vertex PX-850
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Key differences
- •Seasonic Vertex PX-850 has higher Warranty (12 years vs 10 years)
Full spec comparison
Spec
Corsair RM850x Shift (2025)
Seasonic Vertex PX-850
Power
Wattage850 W850 W
Efficiency rating80 Plus Gold80 Plus Platinum
ATX versionATX 3.1ATX 3.0
Modular cablingFully modularFully modular
Form factorATXATX
12V rail designSingle 12VSingle 12V
Connectors & Build
PCIe / GPU connectors1× 12V-2x6, 3× 8-pin1× 12VHPWR, 3× 8-pin
CPU power connectors2× 8-pin2× 8-pin (4+4)
SATA connectors88
Fan size140 mm135 mm
PSU length160 mm160 mm
Zero-RPM fan modeYesYes
Warranty10 years12 years▲