Corsair HX1000i (2025) vs Seasonic VERTEX GX-850
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Key differences
- •Corsair HX1000i (2025) has higher SATA connectors (12 vs 8)
- •Seasonic VERTEX GX-850 has lower PSU length (140 mm vs 200 mm)
- •Corsair HX1000i (2025) has higher Wattage (1000 W vs 850 W)
Full spec comparison
Spec
Corsair HX1000i (2025)
Seasonic VERTEX GX-850
Power
Wattage1000 W▲850 W
Efficiency rating80 Plus Platinum80 Plus Gold
ATX versionATX 3.1ATX 3.0
Modular cablingFully modularFully modular
Form factorATXATX
12V rail designSingle 12VSingle +12V
Connectors & Build
PCIe / GPU connectors1× 12V-2x6, 4× 8-pin4× 8-pin + 12VHPWR
CPU power connectors2× 8-pin2× 8-pin
SATA connectors12▲8
Fan size140 mm135 mm
PSU length200 mm140 mm▲
Zero-RPM fan modeYesYes
Warranty10 years10 years