GIGABYTE P850GM GOLD
The Gigabyte P850GM is an 850 W 80 Plus Gold certified fully modular ATX PSU delivering efficient (~90 %) power, quiet 120 mm cooling, flat modular cables, and essential protections — suitable for mainstream gaming and desktop builds.
Features
The Gigabyte P850GM is a fully modular 850 W ATX power supply that provides stable and efficient power delivery for gaming PCs, productivity systems, and enthusiast desktops. With 80 Plus Gold certification, this PSU is capable of about 90 % efficiency at typical load, meaning it wastes less energy and generates less heat compared to lower-rated units.
Built to meet the Intel ATX 12V v2.31 standard, the P850GM features a fully modular cable design with flat all-black cables that help reduce clutter and improve airflow. It also uses a 120 mm Hydraulic Bearing (HYB) fan for effective cooling and quieter performance.
Key Features
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850 W continuous output — enough for mid-range gaming and productivity systems.
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80 Plus Gold efficiency (~90 %) — lowers energy waste and heat.
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Fully modular design with flat black cables for easier cable management.
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120 mm HYB cooling fan — quiet and efficient thermal management.
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Active PFC (>0.9) for stable voltage usage.
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Comprehensive protections (OVP, UVP, OCP, OPP, SCP, OTP) for safer operation.
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Compact PSU dimensions fit most standard cases.
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~5-year warranty (varies by region/retailer).
Technical Specifications
| Category | Specification |
|---|---|
| Model | GP-P850GM |
| Power Output | 850 W |
| Certification | 80 Plus Gold (~90 % efficiency) |
| Form Factor | ATX 12V v2.31 |
| Modularity | Fully Modular |
| PFC | Active (>0.9 typical) |
| Fan | 120 mm Hydraulic Bearing (HYB) |
| Dimensions | 150 × 140 × 86 mm |
| MTBF | >100,000 hours |
| Protections | OVP, UVP, OCP, SCP, OPP, OTP |
| Power Good Signal | 100–500 ms |
| Hold-Up Time | >16 ms |
| Cable Type | Flat, All Black |
| Warranty | ~5 years (region dependent) |
| Input Voltage | 100–240 V AC |
| Input Current | 6–12 A |
| Input Frequency | 50–60 Hz |
Connector Layout
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ATX 20+4 pin × 1
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CPU/EPS 4+4 pin × 2
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PCIe 6+2 pin × 4
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SATA Power × 8
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Peripheral 4-pin × 3
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Floppy 4-pin × 1
This connector set supports multiple storage drives, discrete graphics cards, and all major motherboard power interfaces.
Advantages
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Efficient Gold certification helps reduce energy costs and heat.
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Fully modular cables simplify cable management and improve airflow.
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Quiet cooling with a smart 120 mm HYB fan.
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Comprehensive safety protections safeguard system components.
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Generous connector count for storage and GPU expansion.
Conclusion
The Gigabyte P850GM is a capable 850 W 80 Plus Gold fully modular power supply designed for mainstream gamers and PC builders who want a balance of efficiency, flexibility, and reliable power delivery. With its high efficiency, modular cable design, and solid protection suite, it can support a wide range of components including discrete GPUs and multiple drives.
While it lacks newer standards like ATX 3.0/PCIe 5.0 native support — which are increasingly important for the latest high-wattage GPUs and next-gen power delivery — it still performs well for typical gaming and productivity systems. Its flat modular cables make for tidy builds and improved airflow, and the quiet 120 mm fan keeps noise levels low under normal loads.
In summary, the Gigabyte P850GM offers a solid blend of efficiency, features, and value for users building or upgrading a PC within its wattage class. Just ensure compatibility with your components’ power requirements and, for very high-end builds, consider PSUs with modern ATX 3.0/PCIe 5.0 support for future-proofing.