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Corsair RM1200x Shift Fully Modular ATX Power vs GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Updated August 2026 — Corsair RM1200x Shift Fully Modular ATX Power leads on noise level and warranty.

The Corsair RM1200x Shift offers superior power capacity and innovative features, while the GIGABYTE UD750GM PG5 V2 ICE is a more budget-friendly option with excellent efficiency.

Why Corsair RM1200x Shift Fully Modular ATX Power is better

Power Capacity

Corsair provides 1200W compared to GIGABYTE's 750W.

Cooling Mechanism

Corsair features a Zero RPM fan mode for silent operation.

Build Quality

Corsair uses 105°C-rated Japanese capacitors for reliability.

Why GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus is better

Price

GIGABYTE is significantly cheaper at $79.99.

Efficiency Rating

GIGABYTE has an 80 PLUS Platinum certification.

Compact Design

GIGABYTE is more suitable for mid-range builds.

Overall score

Corsair RM1200x Shift Fully Modular ATX Power
85
GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus
75

Specifications

SpecCorsair RM1200x Shift Fully Modular ATX PowerGIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus
BrandCorsairGIGABYTE
Wattage1200W750W
Certification80 PLUS Gold80 PLUS Platinum
ModularFully ModularFully Modular
Fan Size140mm120mm

Dimension comparison

Corsair RM1200x Shift Fully Modular ATX PowerGIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Price Comparison

When it comes to price, the GIGABYTE UD750GM PG5 V2 ICE stands out as the more affordable option, retailing at $79.99. In contrast, the Corsair RM1200x Shift is priced significantly higher at $194.99, making it about 144% more expensive than its competitor. This substantial difference could influence your purchasing decision, especially if budget constraints are a priority. The Corsair model offers advanced features that may justify its higher cost, but for those looking for basic power supply functionality, the GIGABYTE option presents a compelling value.

Power Capacity

In terms of power capacity, the Corsair RM1200x Shift delivers a robust 1200W, significantly outperforming the GIGABYTE UD750GM's 750W. This means the Corsair power supply can support more demanding systems, making it ideal for high-performance builds or those that require extra headroom for future upgrades. The GIGABYTE, while capable, is better suited for mid-range setups, providing sufficient power for most standard gaming or workstation needs. If you are planning a build that demands high wattage, the Corsair is the clear choice.

Efficiency Ratings

The efficiency ratings of these two power supplies are noteworthy. The Corsair RM1200x Shift boasts an 80 PLUS Gold certification, while the GIGABYTE UD750GM PG5 V2 ICE achieves an 80 PLUS Platinum certification. While both are efficient, Platinum-rated units are typically about 90% efficient or higher at typical loads, compared to Gold-rated units, which achieve around 87-90% efficiency. This means that the GIGABYTE model may provide slightly better energy savings over time, which can translate into lower electricity bills and a reduced environmental impact.

Modularity

Both power supplies feature a fully modular design, allowing users to connect only the cables they need for their builds, which is essential for maintaining a clean and organized system. However, the Corsair RM1200x Shift introduces a unique side interface for its micro-fit PSU connectors, enhancing accessibility and convenience during installation and future upgrades. This innovative design could be a significant advantage for users who frequently modify their systems. The GIGABYTE also offers a fully modular experience but lacks the distinctive side cable management feature found in the Corsair.

Cooling Mechanisms

Cooling is an important feature in power supplies, and both brands address this with their designs. The Corsair RM1200x Shift utilizes a 140mm fluid dynamic bearing fan, which is designed to operate quietly and efficiently, especially with its Zero RPM fan mode that turns off the fan at low to medium loads. This capability ensures near-silent operation during less demanding tasks. The GIGABYTE UD750GM is equipped with a 120mm smart hydraulic bearing fan, which also prioritizes quiet operation but does not mention a similar zero fan mode. For users who value silence, the Corsair's design may be more appealing.

Build Quality

Build quality is a critical aspect when considering a power supply’s longevity and reliability. The Corsair RM1200x Shift is built with 100% Japanese 105°C-rated electrolytic capacitors, ensuring high reliability and performance. This premium component selection is indicative of a power supply designed for long-term use. Similarly, the GIGABYTE UD750GM also claims to use 100% Japanese capacitors, ensuring quality and stability. Both units are built to last, but the specific mention of higher-rated capacitors in the Corsair may offer additional peace of mind for those concerned about durability.

Compatibility

Both power supplies are compatible with modern standards, being Intel ATX 3.1 certified and supporting PCIe Gen 5.1 graphics cards. This ensures they are ready for the latest hardware technologies, which is crucial for gamers and professionals alike. The GIGABYTE's support for PCIe 5.1 graphics cards is particularly noteworthy, as this allows users to take full advantage of the latest generation of GPUs. While both options offer excellent compatibility, the higher wattage of the Corsair RM1200x Shift means it can support more powerful configurations, making it more versatile for future upgrades.

Which should you buy?

Choosing between the Corsair RM1200x Shift and the GIGABYTE UD750GM PG5 V2 ICE ultimately depends on your specific needs. If you require a high-capacity power supply for a demanding system and value advanced features like the side cable interface and near-silent operation, the Corsair model is worth the investment despite its higher price. However, if you are looking for a reliable, cost-effective solution for a mid-range build, the GIGABYTE is a solid choice, offering excellent efficiency and compatibility at a significantly lower price point.