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Corsair RM850x Shift (2025) vs Seasonic Prime TX-1000 ATX 3.0

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Key differences

  • Seasonic Prime TX-1000 ATX 3.0 has higher SATA connectors (14 vs 8)
  • Seasonic Prime TX-1000 ATX 3.0 has higher Warranty (12 years vs 10 years)
  • Seasonic Prime TX-1000 ATX 3.0 has higher Wattage (1000 W vs 850 W)
  • Seasonic Prime TX-1000 ATX 3.0 has lower PSU length (140 mm vs 160 mm)

Full spec comparison

Spec
Corsair RM850x Shift (2025)
Seasonic Prime TX-1000 ATX 3.0
Power
Wattage850 W1000 W
Efficiency rating80 Plus Gold80 Plus Titanium
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 + 4× 8-pin
CPU power connectors2× 8-pin2× 8-pin
SATA connectors814
Fan size140 mm135 mm
PSU length160 mm140 mm
Zero-RPM fan modeYesYes
Warranty10 years12 years

Ready to buy?

Corsair RM850x Shift (2025)

Seasonic Prime TX-1000 ATX 3.0

Affiliate disclosure: As an Amazon Associate, PCTalkTalk Compare earns from qualifying purchases. We may also earn a commission from Newegg and B&H Photo Video links, at no extra cost to you.