CORSAIR RM1200x SHIFT Fully Modular ATX Power Supply - 80 PLUS Gold - ATX 3.1 - vs GIGABYTE P550SS Power Supply - PCIe 5.0

Pricing Comparison

The CORSAIR RM1200x SHIFT is significantly more expensive than the GIGABYTE P550SS, priced at £174.98 compared to £40.99. This price difference of £133.99 reflects the advanced features and higher certification of the CORSAIR model. While the GIGABYTE offers a budget-friendly option, the premium cost of the CORSAIR is justified by its performance specifications, particularly for high-end systems that require robust power delivery. If you are building a system that demands top-tier performance, the investment in the CORSAIR may be worthwhile.

Power Certification

In terms of power efficiency, the CORSAIR RM1200x SHIFT boasts an 80 PLUS Gold certification, while the GIGABYTE P550SS holds an 80 PLUS Silver certification. This means that the CORSAIR model is designed to achieve at least 87% efficiency at typical loads, whereas the GIGABYTE offers around 85%. The higher efficiency of the CORSAIR can lead to lower energy costs over time, making it a better choice for users who prioritise long-term savings and eco-friendliness in their power consumption.

Modular Design

The CORSAIR RM1200x SHIFT features a fully modular design, allowing users to connect only the cables they need, which enhances cable management and airflow within the case. The innovative easy-access connection position, with modular connections located on the side of the PSU, simplifies installation and maintenance. In contrast, the GIGABYTE P550SS does not specify a fully modular design, which may lead to more clutter in your build. For those focused on aesthetics and organisation, the CORSAIR's modularity stands out significantly.

Cooling Solutions

The cooling capabilities of the two power supplies differ, with the CORSAIR RM1200x SHIFT equipped with a 140mm fluid dynamic bearing fan. This larger fan size often results in quieter operation and improved airflow. Meanwhile, the GIGABYTE P550SS is fitted with a smaller 120mm fluid dynamic bearing fan. While both fans utilise fluid dynamic bearings for reliability, the larger fan in the CORSAIR may provide better cooling performance and lower noise levels under load, making it a preferable choice for high-performance setups.

Compatibility and Standards

The CORSAIR RM1200x SHIFT is Intel ATX 3.1 certified and supports the latest PCIe Gen 5.1 platform, ensuring compatibility with cutting-edge hardware. This certification is essential for users looking to future-proof their builds. The GIGABYTE P550SS, while supporting the Intel ATX 3.0 standard (and thus compatible with ATX 3.1), does not offer the same level of future-ready capability as the CORSAIR. Users who plan to upgrade to the latest technology may find the CORSAIR to be a more prudent investment.

Internal Components

The quality of internal components is crucial for long-term reliability. The CORSAIR RM1200x SHIFT utilises 100% 105°C-rated Japanese electrolytic capacitors, which are known for their durability and performance under high stress. This premium construction contributes to the unit's overall reliability and power delivery stability. On the other hand, while the GIGABYTE P550SS is designed for durability with its advanced protections, it lacks specific details about its internal components. For users looking for assurance in component quality, the CORSAIR’s use of high-grade materials is a distinct advantage.

Safety Features

When considering safety, the GIGABYTE P550SS includes multiple protective features such as 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). These features are essential for safeguarding your components. The CORSAIR RM1200x SHIFT does not explicitly list its safety features, but its premium build and certifications suggest robust safety measures. Users may lean towards the GIGABYTE for its clearly defined protective features, especially in budget-sensitive builds.

Which should you buy?

Ultimately, the choice between the CORSAIR RM1200x SHIFT and the GIGABYTE P550SS hinges on your specific needs and budget. If you require a high-performance, future-proof power supply with top-tier efficiency, modular design, and premium components, the CORSAIR, at £174.98, is the superior option. However, for those on a tighter budget or who need a reliable power supply for less demanding systems, the GIGABYTE P550SS offers excellent value at £40.99. Assess your system requirements and budget carefully to make the best decision for your build.