CORSAIR SF850 vs MSI MAG A1000GLS PCIE5 Power Supply Unit

Price Comparison

When it comes to pricing, the CORSAIR SF850 is positioned at £149.99, while the MSI MAG A1000GLS PCIE5 Power Supply Unit is more affordable at £104.99. This means that the MSI unit is £45 cheaper than the Corsair model, making it an attractive option for budget-conscious consumers. However, the price difference reflects the varying features and certifications of the two power supplies, which could influence your decision based on your specific needs.

Efficiency Ratings

Efficiency is a crucial factor for power supplies, and here the two models differ significantly. The CORSAIR SF850 boasts an impressive 80 PLUS Platinum rating, which indicates it can deliver over 92% efficiency under typical loads. In contrast, the MSI MAG A1000GLS holds an 80 PLUS Gold certification, promising up to 90% efficiency. This distinction means that while both units are efficient, the Corsair model is superior in energy savings, potentially lowering your electricity bills in the long run.

Power Delivery

In terms of power delivery capabilities, the CORSAIR SF850 offers robust performance tailored for high-demand components in compact setups. It is designed to support the latest PCIe Gen 5.1 platform and can handle transient power spikes effectively. The MSI MAG A1000GLS, meanwhile, is capable of delivering up to 600W to PCIe 5.1 GPUs, making it suitable for gaming and high-performance applications. Although both units are competent, the Corsair model's compliance with the latest ATX 3.1 standard may make it more future-proof for upcoming hardware.

Build Quality and Components

The build quality of a power supply is paramount for durability and reliability. The CORSAIR SF850 is equipped with 105°C rated Japanese capacitors, which are known for their longevity and stable performance. On the other hand, the MSI MAG A1000GLS features an LLC half-bridge with a DC-to-DC converter, coupled with numerous protection features like OCP and OTP. While both units are designed for durability, the use of high-quality components in the Corsair model may offer a slight edge for those seeking long-term reliability.

Cooling Solutions

Cooling capabilities can significantly affect the performance and lifespan of a power supply. The CORSAIR SF850 utilises a 92mm PWM cooling fan that ensures efficient cooling while maintaining low noise levels, thanks to its fluid dynamic bearing. Conversely, the MSI MAG A1000GLS is equipped with a larger 135mm fluid-dynamic bearing fan, which is designed to operate quietly, maintaining sound levels comparable to a peaceful night. This larger fan may provide better airflow, which is beneficial in more compact setups where heat can build up quickly.

Size and Form Factor

Size can be a deciding factor when choosing a power supply, especially for smaller builds. The CORSAIR SF850 is a compact SFX power supply, making it ideal for small-form-factor PCs, while the MSI MAG A1000GLS follows the more traditional ATX form factor but is still relatively compact at 150mm in length and width. This design consideration by MSI also aids in cable management and airflow. However, if space is a significant concern for your build, the Corsair’s SFX size might provide an additional advantage.

Modular Design

Modularity in power supplies can greatly enhance cable management and airflow within a PC case. The CORSAIR SF850 is fully modular, featuring Type-5 Micro-Fit PSU connectors that allow for flexible cabling, reducing clutter and improving airflow. The MSI MAG A1000GLS, while not explicitly stated as fully modular, does come with native 12V-2x6 PCIe connectors which simplifies connections for GPU power. For those who value clean cable management, the fully modular design of the Corsair unit is a significant benefit.

Which should you buy?

Choosing between the CORSAIR SF850 and the MSI MAG A1000GLS ultimately depends on your specific needs and budget. If you prioritise efficiency, build quality, and future-proofing, the CORSAIR SF850, with its 80 PLUS Platinum rating and high-quality components, may justify the higher price of £149.99. Conversely, if you are looking for a reliable power supply that delivers solid performance at a more budget-friendly price of £104.99, the MSI MAG A1000GLS presents a compelling option. Each model has its strengths, making them suitable for different types of users and builds.