Gigabyte UD850GM 850W Power Supply

850 W · 80+ Gold · Fully modular

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Wattage 850 W
Efficiency 80+ Gold
Modular Fully modular
Form factor ATX

Gigabyte UD850GM 850W Power Supply is a 850 W power supply rated 80+ Gold (fully modular). Pick one with some headroom above your build's draw.

Specifications

Key specs

Wattage: 850 W
Efficiency: 80+ Gold
Modular: Fully modular
Form factor: ATX
Part number: GP-UD850GM
EAN / UPC: 4719331552541

Power

Total power: 850 W
AC input voltage: 100 - 240 V
AC input frequency: 50 - 60 Hz
Maximum input current (@110V): 12 A
Maximum input current (@220V): 6 A
Power factor: 0.9
Power Factor Correction (PFC) type: Active
Combined power (+3.3V): 105 W
Combined power (+12V): 849.6 W
Combined power (+5V): 120 W
Combined power (-12V): 3.6 W
Combined power (+5Vsb): 15 W
Max output current (+3.3V): 20 A
Max output current (+12V): 70.8 A
Max output current (+5V): 20 A
Max output current (-12V): 0.3 A
Max output current (+5Vsb): 3 A
Hold time: 16 ms
Efficiency: 90%
Power protection features: Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage

Ports & interfaces

Motherboard power connector: 20+4 pin ATX
Motherboard power cable length: 61 cm
Number of SATA power connectors: 8
Peripheral (Molex) power connectors (4-pin): 3
PCI Express power connectors (6+2 pin): 4
CPU power connector (4+4 pin): Yes
CPU power cable length: 60 cm
ATX power connector (20+4 pin): Yes
Floppy drive power connector: 2
Floppy disk drive connector: Yes
Cabling type: Fully-Modular

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Performance

80 PLUS certification: 80 PLUS Gold
Purpose: PC
Power supply unit (PSU) form factor: ATX
ATX version: 2.31
Mean time between failures (MTBF): 100000 h

Design

Product colour: Black
Cooling type: Active
Fan diameter: 12 cm
Number of fans: 1 fan(s)
Fan location: Top
On/off switch: Yes

Weight & dimensions

Width: 150 mm
Depth: 140 mm
Height: 86 mm

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About this product

Inherit the product design spirit of GIGABYTE Ultra Durable, thus introducing a variety of high-quality materials and designs. Ultra Durable combines high-quality main Japanese capacitors, enhanced thermal solution, 120mm smart hydraulic bearing (HYB) fan, and six circuit protection designs. It provides consumers with a high-quality and stable power supply, and can be used for a long time.

HIGH QUALITY JAPANESE CAPACITORS

The main capacitors use high quality Japanese capacitors to produce the efficient performance and ensure the longer reliability.

ENHANCED THERMAL SOLUTION

Compared with the standard thermal solution, we have enlarged the heatsink by about 200% or more, and optimized the airflow. The heat dissipation performance is increased by more than 10%, thus prolonging the service life of the components.

120MM SMART HYDRAULIC BEARING (HYB) FAN

The fan speed is adjusted according to the automatic power detection and stops when the system is idle or under low load (less than 20% load). The hydraulic bearing fan provides longer and more stable life time.

UD850GM vs similar power supplies

	Gigabyte UD850GM 850W Power Supply	Gigabyte GAMING 850GM PG5 ICE Power Supply Unit PCIe 5.1	Gigabyte GAMING 850GM PG5 Power Supply Unit	Gigabyte UD850GM PG5 V2 ICE Power Supply Unit- PCIe Gen 5.1
Wattage	850 W	850 W	850 W	850 W
Efficiency	80+ Gold	80+ Gold	80+ Gold	80+ Gold
Modular	Fully modular	Fully modular	Fully modular	Fully modular
Form factor	ATX	ATX	ATX	ATX
Released	—	2026	2026	2025