1000 Watt Power Supply Units

The 1000 watt power supplies here come from Corsair, DeepCool and Cooler Master: the Corsair RM1000x, the white Corsair RM1000x Shift, the DeepCool PN1000M with a 135mm FDB fan, and the Cooler Master MWE Gold 1050 V2 ATX 3.1, which adds 50 W of headroom and a 140mm fan. All are ATX units, 80 Plus Gold certified and fully modular, and each maker covers them with a 10 year warranty.

A 1000 W unit suits a build that pairs a high-end graphics card with a high-core-count processor, or a system with several drives and room for a later GPU upgrade. Since efficiency, cabling and warranty are the same across these units, the choice comes down to connectors, fan and looks. The Cooler Master is built to the ATX 3.1 standard, which matters for recent high-wattage graphics cards. The RM1000x Shift places its cable sockets on the side of the unit, so check that the case has room beside the PSU bay. The Corsair models also have their own page, as does the DeepCool.

Frequently asked questions

Will a 1000 W PSU fit my case? These are standard ATX power supplies, so they fit any case with an ATX PSU bay. Check the case's maximum PSU length before ordering.

What is the difference between the RM1000x and the RM1000x Shift? Both are 1000 W, 80 Plus Gold and fully modular. The Shift is a white edition with side-facing cable connectors, which makes cable routing easier in cases with enough side clearance.

Do I need 1000 W, or is a smaller unit enough? Add up your processor's and graphics card's power draw and follow the card maker's recommended PSU wattage. A 1000 W unit is meant for flagship GPUs or for leaving room to upgrade later.