CORSAIR RM1200x SHIFT Fully Modular ATX Power Supply - 80 PLUS Gold - ATX 3.1 - vs Gigabyte UD850GM PG5 ICE 80 Plus Gold Fully Modular 850w PCIe 5.0 White Power Su

Overview of the Power Supplies

When comparing the CORSAIR RM1200x SHIFT and the Gigabyte UD850GM PG5 ICE, the most notable difference is their power capacity and price, with the former offering 1200 watts at £174.98, while the latter provides 850 watts for £99.61. This significant difference in wattage indicates that the CORSAIR model is designed for more demanding systems requiring higher power output, making it suitable for high-end gaming or workstation builds. In contrast, the Gigabyte unit is more budget-friendly, catering to mid-range systems that do not require as much power.

Design and Build Quality

Both power supplies boast a fully modular design, which enhances cable management and allows users to connect only the cables they need. The CORSAIR RM1200x SHIFT features innovative side connections that facilitate easier access to cables, an advantage for those who frequently upgrade or modify their systems. On the other hand, the Gigabyte UD850GM PG5 ICE is compact in size, making it a suitable choice for smaller cases. Both models utilise high-quality components, including 100% Japanese capacitors that contribute to their longevity and reliability.

Performance and Cooling

In terms of cooling, the CORSAIR RM1200x SHIFT is equipped with a 140mm Fluid Dynamic Bearing fan designed for low noise and high performance. This is essential for maintaining optimal temperatures during intense workloads. Conversely, the Gigabyte UD850GM PG5 ICE features a 120mm smart hydraulic bearing fan, which also optimises thermal performance. While both fans are designed to provide effective cooling solutions, the larger fan in the CORSAIR model may offer better airflow, especially under heavy loads.

Certification and Efficiency

The CORSAIR RM1200x SHIFT is 80 PLUS Gold certified, ensuring high energy efficiency during operation. This certification means it operates at least 87% efficiency at 20% and 100% loads, making it a reliable choice for energy-conscious users. The Gigabyte UD850GM PG5 ICE also holds an 80 PLUS Gold certification, delivering similar efficiency levels. Both models adhere to the latest Intel ATX 3.1 and PCIe Gen 5.1 standards, making them future-proof options for gamers and professionals alike.

Protection Features

Protection features are paramount in power supplies to safeguard your components. The CORSAIR RM1200x SHIFT incorporates high-quality internal components, including 105°C-rated Japanese electrolytic capacitors, which enhance reliability and performance. Meanwhile, the Gigabyte UD850GM PG5 ICE offers a comprehensive range of protections, including OVP (Over Voltage Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), and OTP (Over Temperature Protection). Both models provide robust safety measures, ensuring peace of mind during operation.

User Experience and Installation

User experience is enhanced by the fully modular designs of both power supplies, allowing for a clean and tidy installation. The unique side connections of the CORSAIR RM1200x SHIFT simplify the process further, making it an appealing option for users who prioritise ease of installation and cable management. The Gigabyte UD850GM PG5 ICE, while slightly less innovative in connectivity, still offers a straightforward installation experience. Both models are designed with user-friendliness in mind, appealing to both novice and experienced builders.

Price Comparison

A key differentiator between these two power supplies is their price point. The CORSAIR RM1200x SHIFT is priced at £174.98, which may be justified by its higher wattage and advanced features. In contrast, the Gigabyte UD850GM PG5 ICE is significantly more affordable at £99.61, making it a compelling choice for users on a budget or those with less demanding power needs. The price difference of £75.37 suggests that users must consider their specific requirements and financial constraints when choosing between these models.

Which should you buy?

Choosing between the CORSAIR RM1200x SHIFT and the Gigabyte UD850GM PG5 ICE ultimately depends on your specific needs and budget. If you require a high-capacity power supply for a demanding system and appreciate advanced features like side connections and superior cooling, the CORSAIR model may be worth the investment. However, if you're looking for a reliable, efficient power supply for a mid-range system at a more accessible price, the Gigabyte option provides excellent value without compromising essential features.