CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply vs MSI MAG A1000GLS PCIE5 Power Supply Unit

Pricing Comparison

When it comes to pricing, the CORSAIR RM850x is more expensive than the MSI MAG A1000GLS, retailing at £124.40 compared to £104.99. The £19.41 difference may be a crucial factor for budget-conscious buyers. While the RM850x offers a fully modular design, which enhances flexibility in cable management, the MAG A1000GLS still provides significant value at a lower price point, especially for users who may not require the additional features offered by Corsair. This price difference could influence customers’ decisions, particularly those looking for a reliable power supply without breaking the bank.

Efficiency Ratings

Both power supplies boast impressive efficiency ratings, but they cater to slightly different needs. The CORSAIR RM850x is Cybenetics Gold-Certified, achieving up to 91% efficiency, while the MSI MAG A1000GLS is 80 PLUS Gold Certified, with an efficiency rating of up to 90%. While both options provide excellent efficiency, the RM850x edges out slightly in terms of potential energy savings. Users prioritising lower energy consumption may prefer the RM850x, though the MAG A1000GLS remains a solid choice for those who want reliability and decent efficiency without the higher price tag.

Modular Design

The CORSAIR RM850x features a fully modular design, allowing users to connect only the cables they need for their system. This can lead to improved airflow and a cleaner build, which is especially beneficial in more compact cases. In contrast, while the MSI MAG A1000GLS supports native 12V-2x6 connectors, it does not mention a fully modular design. This could result in more cluttered cable management for users who prefer a streamlined look. For enthusiasts who value aesthetics and organisation, the modular aspect of the RM850x will likely be a deciding factor.

Compatibility with Modern Graphics Cards

In terms of graphics card compatibility, both power supplies are designed with the latest technology in mind. The CORSAIR RM850x is ATX 3.1 compliant, supporting PCIe 5.1 and directly connecting to the GPU without the need for an adapter. The MSI MAG A1000GLS also comes equipped with native 12V-2x6 PCIe connectors, capable of delivering up to 600W, which is crucial for high-performance GPUs. While both units provide excellent support for modern graphics cards, the RM850x’s additional compliance with ATX 3.1 may appeal to users wanting to future-proof their systems.

Noise Levels

Noise levels are a critical consideration for many PC builders, especially those seeking a quiet computing experience. The CORSAIR RM850x is marketed as a low-noise power supply, although specific decibel ratings are not provided. The MSI MAG A1000GLS, on the other hand, claims to maintain an average sound level as low as that of a peaceful night, featuring a 135 mm Fluid-dynamic bearing fan designed for quiet operation. This focus on low-noise performance makes the MAG A1000GLS potentially more appealing to users who prioritise silence during operation, particularly in home or office settings.

Build Quality and Reliability

Both the CORSAIR RM850x and MSI MAG A1000GLS are built with reliability in mind. The RM850x features embossed cables and low-profile combs, which not only enhance aesthetics but also improve the ease of installation. The MAG A1000GLS boasts an LLC half-bridge with a DC-to-DC converter and an active PFC design, ensuring reliable output with multiple protection features. While both units promise durability, the RM850x’s aesthetic and functional design may attract users who appreciate attention to detail, while the MAG A1000GLS delivers robust performance through its protective features.

Size and Form Factor

Size can play a significant role in choosing a power supply, especially for compact builds. The CORSAIR RM850x does not specify its dimensions, but its fully modular design typically allows for easy installation in various cases. The MSI MAG A1000GLS, however, is noted for its compact size, measuring 150 mm long and wide, making it a convenient choice for tight spaces. Users with smaller cases or those looking to optimise airflow may favour the MAG A1000GLS for its size, while those with more room may not find the dimensions of the RM850x to be a limiting factor.

Which should you buy?

Choosing between the CORSAIR RM850x and the MSI MAG A1000GLS ultimately depends on individual needs and priorities. If you value a fully modular design, slightly higher efficiency, and a brand known for high performance, the RM850x at £124.40 may be the better option. Conversely, if budget constraints are a significant factor and you seek a reliable, compact power supply with excellent noise management, the MSI MAG A1000GLS at £104.99 offers great value. Each unit has its strengths, making the decision a matter of personal preference and specific system requirements.