CORSAIR RM1200x SHIFT Fully Modular ATX Power Supply - 80 PLUS Gold - ATX 3.1 - vs MSI MPG A1000G PCIE5 Power Supply Unit

Price Comparison

The CORSAIR RM1200x SHIFT is priced at £174.98, while the MSI MPG A1000G comes in significantly lower at £104.99. This £70.99 difference highlights a considerable price gap between the two power supplies. While the RM1200x SHIFT offers premium features, the MPG A1000G presents itself as a more budget-friendly option without sacrificing essential functionalities. For consumers focused on cost without the need for the highest specifications, the MSI product could be the more appealing choice.

Efficiency Ratings

Both power supplies boast an 80 PLUS Gold certification, indicating high efficiency levels. The CORSAIR RM1200x SHIFT can achieve up to 90% efficiency, making it suitable for power-hungry components. In comparison, the MSI MPG A1000G also promises similar efficiency ratings, ideal for demanding graphics cards and gaming setups. This equivalence in efficiency means that both products are designed to reduce energy consumption effectively, though the CORSAIR model may provide slightly more robust performance under heavy loads.

Modular Design

The CORSAIR RM1200x SHIFT features a fully modular design with innovative side connections, which facilitate cleaner cable management. This design allows users to connect only the cables they need, optimising space and airflow within the system. On the other hand, the MSI MPG A1000G also offers a fully modular setup, along with flat black cables that help reduce clutter. While both power supplies excel in modularity, the unique side-access feature of the CORSAIR unit may appeal to users seeking easier cable management solutions.

Cooling Systems

When it comes to cooling, the CORSAIR RM1200x SHIFT utilises a 140mm fluid dynamic bearing fan designed for high performance and low noise levels. This fan operates efficiently, ensuring system stability during intensive tasks. Conversely, the MSI MPG A1000G includes a 135mm fluid dynamic bearing fan that has a 0% RPM mode, which automatically deactivates the fan when the total design power (TDP) falls below 40%. This functionality enhances energy efficiency and reduces noise during light usage. Both cooling systems are effective, but the MSI's 0% RPM mode offers a distinct advantage for quieter operation during less demanding tasks.

Power Delivery

The CORSAIR RM1200x SHIFT is Intel ATX 3.1 certified, meaning it supports the latest PCIe Gen 5.1 platform while resisting transient power spikes. This certification is essential for users who plan to run cutting-edge hardware. Meanwhile, the MSI MPG A1000G is designed to support PCIe 5.0 GPUs with its native 16-pin (12VHPWR) connector, allowing it to deliver up to 600W to high-performance graphics cards. Although both power supplies cater to modern hardware, the CORSAIR's certification may provide an edge for future-proofing against upcoming technology.

Build Quality and Components

Both power supplies utilise premium internal components, but the CORSAIR RM1200x SHIFT is equipped with 100% 105°C-rated Japanese electrolytic capacitors, which promise long-term reliability and unwavering power delivery. The MSI MPG A1000G also features Japanese 105°C capacitors and a half-bridge LLC with a DC-to-DC converter design, ensuring a reliable output. While both brands are known for quality, the emphasis on 105°C-rated capacitors in the CORSAIR model may suggest a slight advantage in terms of durability under sustained loads.

Warranty and Support

The CORSAIR RM1200x SHIFT comes with a standard warranty that is typical for high-end power supplies, providing peace of mind for users investing in a premium product. The MSI MPG A1000G, however, includes a notable 10-year warranty, which significantly extends the coverage period and indicates confidence in its durability and performance. This longer warranty period may sway consumers who prioritise long-term reliability and support, particularly in a competitive market.

Which should you buy?

Choosing between the CORSAIR RM1200x SHIFT and the MSI MPG A1000G ultimately depends on your specific needs and budget. If you seek a premium power supply with advanced features, such as Intel ATX 3.1 certification and superior cooling, the CORSAIR model is a strong contender. However, if you're looking for a more affordable option that still delivers excellent performance and a lengthy warranty, the MSI MPG A1000G stands out as a compelling choice. Consider your system requirements and budget to determine which power supply aligns best with your setup.