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Gigabyte UD850GM PG5 ICE 80 Plus Gold Fully Modular 850w PCIe 5.0 White Power Su vs MSI MPG A1000G PCIE5 Power Supply Unit

Updated August 2026The Gigabyte UD850GM PG5 ICE offers great value with its durability and performance, while the MSI MPG A1000G provides advanced features and a longer warranty. Choose based on your specific needs.

The Gigabyte UD850GM PG5 ICE offers great value with its durability and performance, while the MSI MPG A1000G provides advanced features and a longer warranty. Choose based on your specific needs.

Why Gigabyte UD850GM PG5 ICE 80 Plus Gold Fully Modular 850w PCIe 5.0 White Power Su is better

lower price

Gigabyte is cheaper at £99.61

compact design

Gigabyte's compact size fits more builds

Japanese capacitors

Gigabyte uses 100% Japanese capacitors for durability

Why MSI MPG A1000G PCIE5 Power Supply Unit is better

longer warranty

MSI offers a 10-year warranty

advanced GPU support

MSI supports PCIe 5.0 with 600W output

0% RPM mode

MSI features a fan mode for quieter operation

Overall score

Gigabyte UD850GM PG5 ICE 80 Plus Gold Fully Modular 850w PCIe 5.0 White Power Su
85
MSI MPG A1000G PCIE5 Power Supply Unit
90

Specifications

SpecGigabyte UD850GM PG5 ICE 80 Plus Gold Fully Modular 850w PCIe 5.0 White Power SuMSI MPG A1000G PCIE5 Power Supply Unit
BrandGigabyteMSI
Certification80 PLUS Gold80 PLUS Gold
ModularFullyFully
Rail DesignSingleSingle
CoolingHydraulic FanFDB Fan

Dimension comparison

Gigabyte UD850GM PG5 ICE 80 Plus Gold Fully Modular 850w PCIe 5.0 White Power SuMSI MPG A1000G PCIE5 Power Supply Unit

Overview of Power Supplies

When it comes to selecting a power supply unit (PSU), two notable options are the Gigabyte UD850GM PG5 ICE and the MSI MPG A1000G PCIE5. The Gigabyte unit is priced at £99.61, while the MSI variant is available for £104.99. Both units boast 80 PLUS Gold certification, ensuring high energy efficiency, but they differ in features and design, catering to various user needs.

Design and Build Quality

The Gigabyte UD850GM PG5 ICE features a fully modular design that simplifies cable management and enhances airflow within the case. Its compact size allows it to fit into a variety of builds seamlessly. In contrast, the MSI MPG A1000G also utilises a fully modular format, equipped with flat black cables to reduce clutter. Both units feature high-quality components, but the Gigabyte unit is particularly noted for its use of 100% Japanese capacitors, which contribute to its durability.

Power Delivery and Efficiency

Power delivery is a crucial factor in PSU performance, and both units excel in this area. The Gigabyte UD850GM PG5 ICE can deliver a powerful single +12V rail, ensuring stable performance even under demanding conditions. The MSI MPG A1000G, meanwhile, supports PCIe 5.0 graphics cards with its native 16-pin (12VHPWR) connector, capable of feeding up to 600W to a GPU. This feature is becoming increasingly important for high-end gaming and rendering tasks.

Cooling Solutions

Efficient cooling mechanisms are essential for optimal PSU performance. The Gigabyte UD850GM PG5 ICE is equipped with a 120mm smart hydraulic bearing fan, designed to operate quietly while effectively dissipating heat. On the other hand, the MSI MPG A1000G features a 135mm fluid dynamic bearing fan that includes a 0% RPM mode. This means the fan is deactivated under low load conditions, enhancing energy efficiency and reducing noise levels when the system is not under heavy use.

Protection Features

Both power supplies come with a suite of protection features to ensure safe operation. The Gigabyte UD850GM PG5 ICE includes protections against over-voltage, over-current, and short circuits, providing users with peace of mind. Similarly, the MSI MPG A1000G boasts a robust protection system with OCP, OVP, OPP, OTP, SCP, and UVP safeguards. These features are crucial for preventing hardware damage and ensuring a stable power supply to all components.

Warranty and Support

Warranty offerings can significantly influence a buyer's decision. The Gigabyte UD850GM PG5 ICE does not specify its warranty period, which may raise concerns for potential buyers. In contrast, the MSI MPG A1000G comes with a generous 10-year warranty, indicating the manufacturer’s confidence in the product’s longevity and performance. This extended warranty could be a deciding factor for users looking for reliability and long-term support.

Price Comparison

The pricing of these two power supplies reflects their features and target audiences. The Gigabyte UD850GM PG5 ICE is priced at £99.61, making it a more budget-friendly option for users seeking quality without breaking the bank. In comparison, the MSI MPG A1000G is available for £104.99. While it is slightly more expensive, the additional features, such as the 0% RPM mode and enhanced GPU support, may justify the price difference for some users.

Which should you buy?

Choosing between the Gigabyte UD850GM PG5 ICE and the MSI MPG A1000G depends on your specific needs and priorities. If you are looking for a cost-effective, efficient power supply with a focus on durability and stable performance, the Gigabyte unit is an excellent choice. However, if you require advanced features like PCIe 5.0 support, a quieter operation under low loads, and an impressive warranty, the MSI MPG A1000G may be worth the additional investment. Ultimately, both power supplies offer strong performance, but the right option hinges on your individual requirements and budget.

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Gigabyte UD850GM PG5 ICE 80 Plus Gold Fully Modular 850w PCIe 5.0 White Power Su vs MSI MPG A1000G PCIE5 Power Supply Unit | versusfinder