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CORSAIR HX1500i Fully Modular Ultra-Low Noise ATX vs GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Updated August 2026 — CORSAIR HX1500i Fully Modular Ultra-Low Noise ATX leads on noise level and cooling.

The CORSAIR HX1500i offers superior efficiency and features, making it ideal for high-performance builds, while the GIGABYTE UD750GM PG5 V2 ICE is a budget-friendly option for mid-range systems.

Why CORSAIR HX1500i Fully Modular Ultra-Low Noise ATX is better

Efficiency

HX1500i has 80 PLUS Platinum certification.

Features

Includes advanced iCUE software for monitoring.

Noise

Zero RPM mode for silent operation at low loads.

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

Price

UD750GM is significantly cheaper at $79.99.

Simplicity

Good performance for basic builds.

Size

Compact design suitable for smaller cases.

Overall score

CORSAIR HX1500i Fully Modular Ultra-Low Noise ATX
90
GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus
75

Specifications

SpecCORSAIR HX1500i Fully Modular Ultra-Low Noise ATXGIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus
Certification80 PLUS Platinum80 PLUS Gold
Fan TypeFluid DynamicHydraulic Bearing
CablingFully ModularFully Modular
SoftwareiCUENone
Warranty10 Years5 Years

Dimension comparison

CORSAIR HX1500i Fully Modular Ultra-Low Noise ATXGIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Overview of the Power Supplies

The CORSAIR HX1500i is a high-capacity power supply priced at $349.99, while the GIGABYTE UD750GM PG5 V2 ICE is significantly cheaper at $79.99. This price difference of about 77% presents a choice between premium features and budget-friendly performance. Both products cater to modern PC requirements with ATX 3.1 and PCIe 5.1 compliance, offering efficient and reliable power delivery.

The CORSAIR HX1500i targets users needing robust power for high-performance systems, whereas the GIGABYTE UD750GM PG5 V2 ICE provides a solid option for less demanding setups. Each power supply has unique features that may appeal to different segments of PC builders.

Design and Build Quality

The design and build quality of a power supply can greatly influence its performance and reliability. The CORSAIR HX1500i features a fully modular design, allowing users to connect only the necessary cables, contributing to a tidy build. Its 140mm Fluid Dynamic Bearing fan ensures quiet operation, suitable for noise-sensitive environments.

On the other hand, the GIGABYTE UD750GM PG5 V2 ICE also boasts a fully modular design, enhancing cable management. Its 120mm smart hydraulic bearing fan provides efficient cooling. Both products utilize high-quality Japanese capacitors, ensuring durability and stability, but the HX1500i's premium components aim for higher efficiency and quieter operation.

Performance and Efficiency

When it comes to performance, the CORSAIR HX1500i stands out with its 80 PLUS Platinum certification, indicating exceptional energy efficiency. This premium rating ensures that the power supply operates at a high efficiency level, minimizing energy waste. The HX1500i also supports Modern Standby sleep mode, further enhancing power-saving capabilities.

Conversely, the GIGABYTE UD750GM PG5 V2 ICE is 80 PLUS Gold certified, which, while still efficient, is a step below Platinum. It provides solid performance for most gaming and productivity setups but may not offer the same level of energy savings under load as the HX1500i. For users whose systems demand constant power, the HX1500i's superior efficiency can lead to lower electricity bills over time.

Features and Functionality

The CORSAIR HX1500i comes packed with features aimed at enthusiasts, including the powerful CORSAIR iCUE software. This software allows users to create custom fan curves, monitor power settings, and adjust overcurrent protection settings easily. Additionally, the Zero RPM fan mode ensures the fan remains off during low and medium loads for silent operation.

The GIGABYTE UD750GM PG5 V2 ICE offers essential features like PCIe Gen 5.1 support and a single +12V rail, ensuring stable power delivery to modern graphics cards. However, it lacks the advanced monitoring and customization options that come with the HX1500i. For users who value extensive control over their power supply’s performance, the HX1500i is the clear winner in this category.

Compatibility and Connectivity

Both power supplies are designed to be compatible with the latest hardware, adhering to the ATX 3.1 and PCIe 5.1 standards. The CORSAIR HX1500i has the advantage of supporting a wide range of connections, making it suitable for high-end builds that require multiple GPUs or other power-hungry components.

The GIGABYTE UD750GM PG5 V2 ICE, while also compatible with modern components, offers a lower wattage at 750W. This may limit its ability to support multiple high-end graphics cards simultaneously, which could be a critical factor for gamers or professionals looking to build powerful systems.

Noise Levels and Cooling

Noise levels are a crucial consideration for users seeking a quiet computing experience. The CORSAIR HX1500i employs a 140mm Fluid Dynamic Bearing fan that operates quietly, especially in Zero RPM mode, where the fan is off during low loads. This design prioritizes silent operation without compromising cooling efficiency.

In comparison, the GIGABYTE UD750GM PG5 V2 ICE features a 120mm smart hydraulic bearing fan that balances performance and noise. While it performs well, it may not achieve the same level of quietness as the HX1500i under similar conditions. For users sensitive to noise, the HX1500i is likely the better option.

Price Comparison

The price difference between the two power supplies is notable: the CORSAIR HX1500i is priced at $349.99, while the GIGABYTE UD750GM PG5 V2 ICE is available for $79.99. This represents a staggering 77% price difference, which could be a decisive factor for budget-conscious buyers.

While the HX1500i offers premium features and superior efficiency, the GIGABYTE UD750GM PG5 V2 ICE provides substantial value for users who do not require the highest performance levels. Ultimately, the choice will depend on the user’s specific needs and budget constraints.

Which should you buy?

Choosing between the CORSAIR HX1500i and the GIGABYTE UD750GM PG5 V2 ICE boils down to your power requirements and budget. If you are building a high-performance system that demands efficiency and silence, the HX1500i is an excellent choice, despite its higher price tag. Its advanced features, including iCUE software and Platinum efficiency, make it ideal for enthusiasts.

However, if you need a reliable power supply for a mid-range build and want to save significantly, the GIGABYTE UD750GM PG5 V2 ICE at $79.99 is a compelling option. It provides solid performance at a fraction of the cost, making it suitable for users who prioritize budget over high-end features. Ultimately, assess your needs carefully to make the best choice for your setup.