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CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX vs GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Updated August 2026 — GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus leads on modularity and build quality.

The GIGABYTE UD750GM offers superior power capacity and efficiency, making it a better choice for high-performance builds. However, the CORSAIR CX550 is a more budget-friendly option.

Why CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX is better

Price

CORSAIR CX550 is cheaper at $65.99

Compact Size

CORSAIR CX550 has a shorter length of 125mm

Warranty

CORSAIR CX550 offers a three-year warranty

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

Power Capacity

GIGABYTE UD750GM has 750W vs 550W

Efficiency

GIGABYTE UD750GM is 80 PLUS Platinum certified

Modularity

GIGABYTE UD750GM is fully modular for better cable management

Overall score

CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX
75
GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus
85

Specifications

SpecCORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATXGIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus
Certification80 PLUS Bronze80 PLUS Platinum
ModularityNon-ModularFully Modular
Cooling FanThermally ControlledSmart Hydraulic
CapacitorsNot Specified100% Japanese
Form FactorATXATX3.1

Dimension comparison

CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATXGIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Overview of the Products

In this comparison, we will explore two power supplies: the CORSAIR CX550 and the GIGABYTE UD750GM PG5 V2 ICE. The CORSAIR CX550 is priced at $65.99, while the GIGABYTE UD750GM is available for $79.99. The key differences lie in their power capacities, efficiency ratings, and design features, which cater to different needs in the realm of PC building.

Power Capacity

The GIGABYTE UD750GM offers a substantial power capacity of 750 watts, making it suitable for high-performance builds, especially those utilizing powerful graphics cards. In contrast, the CORSAIR CX550 is rated at 550 watts, which is adequate for mid-range systems but may limit the upgrade potential for users seeking to expand their setups. This 36% difference in wattage could be a decisive factor for gamers and professionals requiring more energy for demanding tasks.

Efficiency Ratings

Efficiency is a critical aspect of power supplies, and the GIGABYTE UD750GM boasts an 80 PLUS Platinum certification, indicating up to 92% efficiency under typical loads. The CORSAIR CX550, on the other hand, holds an 80 PLUS Bronze certification, achieving up to 88% efficiency. This 4% difference in efficiency translates to lower energy costs for users who choose the GIGABYTE model, making it a more economical choice over time, especially for those running resource-intensive applications.

Design and Modularity

The design of the GIGABYTE UD750GM is fully modular, which allows for cleaner cable management and improved airflow within the PC case. This is a significant advantage for users who prioritize aesthetics and efficiency in their builds. In comparison, the CORSAIR CX550 is a non-modular power supply, which means that all cables are fixed and can lead to cluttered setups. For those who value a tidy interior and efficient airflow, the GIGABYTE’s modular design could be a compelling reason to choose it over the CORSAIR.

Cooling Solutions

Cooling is an essential factor in maintaining system stability and longevity. The GIGABYTE UD750GM features a 120mm smart hydraulic bearing fan that optimizes cooling performance while minimizing noise. The CORSAIR CX550 also incorporates a 120mm thermally controlled fan, which operates quietly under low loads but ramps up under heavy stress. While both cooling solutions aim for low noise, the smart technology in the GIGABYTE unit suggests a more advanced approach to thermal management, potentially providing better performance in demanding scenarios.

Build Quality and Components

When it comes to build quality, the GIGABYTE UD750GM is equipped with 100% Japanese capacitors, which are known for their reliability and longevity. This premium component choice enhances the overall quality of the power supply. The CORSAIR CX550, while also well-constructed, does not specify the types of capacitors used. This distinction may appeal to users who seek durability and performance consistency over extended periods, making the GIGABYTE a potentially better investment in terms of longevity.

Price Considerations

The price difference between the two power supplies is notable. The CORSAIR CX550 is currently priced at $65.99, while the GIGABYTE UD750GM comes in at $79.99. This means the GIGABYTE is approximately 21% more expensive than the CORSAIR. For budget-conscious users, the lower price of the CX550 may be appealing, but it’s important to consider what additional features and future-proofing the GIGABYTE offers for the extra cost.

User Experience and Support

Both brands are well-regarded in the PC building community, but they offer different levels of support and warranty. The CORSAIR CX550 comes with a three-year warranty, providing users with peace of mind regarding reliability. While the GIGABYTE UD750GM does not specify its warranty length in the provided data, GIGABYTE is generally known for offering solid customer service and support. Users may want to weigh the importance of warranty length against the features provided by each model.

Which should you buy?

Deciding between the CORSAIR CX550 and the GIGABYTE UD750GM PG5 V2 ICE ultimately depends on your specific needs and budget. If you are looking for a cost-effective solution for a mid-range build, the CORSAIR CX550 at $65.99 is a solid choice. However, for those who require higher power capacity, superior efficiency, and advanced features like modularity and enhanced cooling, the GIGABYTE UD750GM at $79.99 is worth the investment. Consider your current and future needs carefully to make the best decision.