Gigabyte UD850GM PG5 ICE 80 Plus Gold Fully Modular 850w PCIe 5.0 White Power Su vs GIGABYTE P550SS Power Supply - PCIe 5.0

Price Comparison

The Gigabyte UD850GM PG5 ICE is significantly more expensive than the GIGABYTE P550SS, priced at £99.61 compared to £40.99. This substantial difference of £58.62 reflects the varying specifications and intended use cases of these power supplies. While the UD850GM is designed for high-performance systems with advanced features, the P550SS serves as a more budget-friendly option suitable for users with less demanding requirements. This price gap highlights the additional capabilities and certifications of the UD850GM, making it a worthwhile investment for serious gamers or professionals.

Certification Standards

In terms of efficiency, the UD850GM boasts an 80 PLUS Gold certification, while the P550SS has an 80 PLUS Silver certification. This distinction indicates that the UD850GM is more efficient at converting AC power to DC power, providing lower energy consumption and heat generation during operation. The Gold certification means that the UD850GM can deliver energy efficiency of up to 90% under certain loads, whereas the Silver certification for the P550SS offers around 85% efficiency. For users concerned about energy costs and environmental impact, the UD850GM presents a superior choice.

Modular Design

The UD850GM features a fully modular design, allowing users to connect only the cables they need for their build. This not only helps in decluttering the case but also enhances airflow, leading to better cooling. In contrast, the P550SS has a flat cable design, which, while neat, does not offer the same level of flexibility in cable management as a fully modular unit. For builders who prioritise aesthetics and airflow in their setups, the UD850GM’s modularity may be a decisive factor in their choice.

Cooling Mechanisms

When it comes to cooling solutions, the UD850GM is equipped with a 120mm smart hydraulic bearing fan, which is designed to optimise thermal performance while minimising noise levels. The P550SS, on the other hand, utilises a 120mm Fluid Dynamic Bearing fan. While both fans are effective, the smart hydraulic bearing fan in the UD850GM may provide better longevity and quieter operation under load, making it more suitable for high-performance applications where cooling is critical.

Compatibility and Standards

The UD850GM is Intel ATX 3.1 and PCIe Gen 5.1 ready, ensuring compatibility with the latest hardware standards. This makes it an excellent choice for users looking to build or upgrade to cutting-edge systems. The P550SS supports the Intel ATX 3.0 standard and is compatible with ATX 3.1, but lacks the Gen 5.1 support. For future-proofing and leveraging advanced features of modern graphics cards, the UD850GM stands out as the more versatile option.

Safety Features

Both power supplies come equipped with advanced safety features, including Over Voltage Protection (OVP), Over Power Protection (OPP), Short Circuit Protection (SCP), Under Voltage Protection (UVP), Over Current Protection (OCP), and Over Temperature Protection (OTP). This indicates that both units prioritise user safety and system integrity. However, the presence of these features in both models means that users can feel secure regardless of their choice, though the overall reliability of the UD850GM may be enhanced by its higher quality components.

Build Quality and Components

The UD850GM is constructed with 100% Japanese capacitors, which are known for their high reliability and longevity in power supply units. This quality construction plays a crucial role in the overall performance and durability of the power supply. The P550SS, while still built with quality in mind, does not explicitly state the type of capacitors used. For users who value build quality and long-term reliability, the UD850GM’s components may be a significant advantage.

Which should you buy?

Ultimately, the decision between the Gigabyte UD850GM PG5 ICE and the GIGABYTE P550SS hinges on your specific needs and budget. If you are building a high-performance system and require a power supply that offers efficiency, modularity, advanced cooling, and future-proofing features, the UD850GM is worth the investment at £99.61. However, if you are looking for a more economical choice for a less demanding setup, the P550SS at £40.99 provides solid performance without breaking the bank. Assess your requirements carefully to determine the best fit for your system.