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Rectangular black ATX power supply unit with modular cable sockets and a 12cm fan grille

GIGABYTE

GIGABYTE B-GIGABYTE GP-P1000GM 1000 W power supply

SKU CH-XVFR-2Y35J MPN B-GIGABYTE GP-P1000GM

A full-modular 1000 W ATX 12V v2.31 unit with 80 PLUS Gold efficiency and a Japanese 105 main capacitor

  • Max wattage1000 W
  • Power efficiency90% at typical load
  • Modular cablingFull Modular
  • Efficiency certification80 PLUS GOLD Certified
  • Supply voltage100–240 V
  • AC input frequency60–50 Hz

Model ATX 80+ Gold (1000W)

  • Delivers 1000 W for demanding builds
  • 90% typical efficiency cuts running costs
  • 80 PLUS Gold certification confirms high efficiency
  • Full modular cables simplify case routing
  • Japanese 105 °C main capacitor boosts reliability

1000 W ATX 12V v2.31 power supply

The GIGABYTE GP-P1000GM delivers 1000 W of continuous power through an ATX 12V v2.31 design. Full modular cabling lets you connect only the leads your build requires. 80 PLUS Gold certification confirms 90 percent efficiency at typical load, reducing waste heat and electricity cost. A 12 cm HYB smart fan and Japanese 105 °C main capacitor support quiet, reliable operation across 100–240 V input.

Suited for high-output single-GPU systems.

Builders assembling a high-performance workstation or enthusiast desktop with a single power-hungry graphics card will appreciate the strong +12 V delivery and clean cable routing. The unit lacks the connector count and combined rail current needed for dual or triple GPU configurations. Systems that require redundant power supplies or server-grade monitoring features should look at a different form factor.

80 PLUS Gold efficiency at 90 percent typical load

The Gold rating means the supply converts at least 90 percent of AC input to DC output at 50 percent load, lowering running costs and case temperatures. This single metric is the clearest indicator of whether the unit matches your efficiency targets and thermal budget.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $111.99
Cheaper than about 62% of the 10,869 comparable items (median $142.99).
Max wattage 1000 W
Higher than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameGIGABYTE
Model nameGP-P1000GM
Product typeATX 12 V v2.31
Ports & slots
Output type+3.3 V@25A, +5 V@25A, +5VSB@3A
Power
Max wattage1000 W
Power efficiency90% at typical load
Modular cablingFull Modular
Efficiency certification80 PLUS GOLD Certified
Supply voltage100–240 V
AC input frequency60–50 Hz
Rated input current15-6.5 A
Size & build
Shipping weight2.77 kg
Package size254 × 208 × 117 mm

Other versions of this model

4 more in the same range

Questions about this item

Will the ATX 12V v2.31 power supply work with my older motherboard that uses a 20-pin main connector?

The unit follows the ATX 12V v2.31 design, which includes a 24-pin main connector that splits into 20+4 pins, so it fits legacy 20-pin motherboards as well as current 24-pin boards.

How can I verify the 80 PLUS Gold efficiency is actually being achieved after installation?

At typical load the supply is rated for 90 percent efficiency; you can confirm behaviour by monitoring AC input power versus DC output power with a plug-in power meter while the system runs a steady workload.

Which cables come in the box with this fully modular 1000 W unit?

The package supplies the modular cables required for the 24-pin motherboard, CPU 8-pin, PCIe and peripheral connectors; no additional cables are needed for a standard build.

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