Cooler Master GX III Gold 850W vs Corsair RM850x Shift (2025)
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Full spec comparison
Spec
Cooler Master GX III Gold 850W
Corsair RM850x Shift (2025)
Power
Wattage850 W850 W
Efficiency rating80 Plus Gold80 Plus Gold
ATX versionATX 3.0ATX 3.1
Modular cablingFully modularFully modular
Form factorATXATX
12V rail designSingle +12VSingle 12V
Connectors & Build
PCIe / GPU connectors4× 8-pin + 12VHPWR1× 12V-2x6, 3× 8-pin
CPU power connectors2× 8-pin2× 8-pin
SATA connectors88
Fan size120 mm140 mm
PSU length160 mm160 mm
Zero-RPM fan modeYesYes
Warranty10 years10 years