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CORSAIR RM850e Fully Modular Low-Noise ATX Power vs GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Updated August 2026 — CORSAIR RM850e Fully Modular Low-Noise ATX Power leads on noise level and efficiency.

The CORSAIR RM850e offers higher power capacity and better component ratings, while the GIGABYTE UD750GM PG5 V2 ICE is more budget-friendly. Choose based on your specific needs.

Why CORSAIR RM850e Fully Modular Low-Noise ATX Power is better

Higher Capacity

CORSAIR RM850e has 850W vs GIGABYTE's 750W

Better Efficiency

CORSAIR RM850e has Cybenetics Gold efficiency

Higher Quality Components

CORSAIR uses 105°C-rated capacitors

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

Lower Price

GIGABYTE UD750GM PG5 V2 ICE costs $79.99

Compact Size

GIGABYTE is designed for mid-range builds

Japanese Capacitors

GIGABYTE uses 100% Japanese capacitors

Overall score

CORSAIR RM850e Fully Modular Low-Noise ATX Power
88
GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus
80

Specifications

SpecCORSAIR RM850e Fully Modular Low-Noise ATX PowerGIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus
Wattage850W750W
Efficiency RatingCybenetics Gold80 PLUS Platinum
Modular DesignFully ModularFully Modular
Fan Size120mm120mm
Capacitors105°C-rated100% Japanese

Dimension comparison

CORSAIR RM850e Fully Modular Low-Noise ATX PowerGIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Overview of the CORSAIR RM850e and GIGABYTE UD750GM PG5 V2 ICE

In this comparison, we will explore the CORSAIR RM850e and the GIGABYTE UD750GM PG5 V2 ICE power supplies. The CORSAIR RM850e has a capacity of 850W, while the GIGABYTE UD750GM PG5 V2 ICE offers 750W. Despite the difference in power capacity, both units are fully modular and compliant with modern standards, making them suitable for contemporary gaming and workstation builds.

The CORSAIR RM850e is priced at $94.99, whereas the GIGABYTE UD750GM PG5 V2 ICE is more budget-friendly at $79.99, making it about 17% cheaper. This price difference can influence your decision, especially if you're looking to save on your build without compromising too much on quality.

Power Capacity and Efficiency

Power capacity is a significant factor in any power supply. The CORSAIR RM850e boasts a higher capacity of 850W, which can be beneficial for high-performance systems that demand more power. In contrast, the GIGABYTE UD750GM PG5 V2 ICE provides 750W, which is typically sufficient for most mid-range builds and even some high-end configurations.

Both units are certified for efficiency, with the CORSAIR RM850e achieving Cybenetics Gold efficiency and the GIGABYTE UD750GM PG5 V2 ICE holding an 80 PLUS Platinum certification. This means that while the GIGABYTE model is designed for slightly higher efficiency, the overall power output of the CORSAIR model may be more advantageous for users who plan on running demanding hardware.

Modular Design and Cable Management

Both the CORSAIR RM850e and the GIGABYTE UD750GM PG5 V2 ICE feature fully modular designs, which allow users to connect only the cables that are necessary for their builds. This is an essential feature for anyone looking to optimize airflow and reduce clutter inside their cases.

The modularity of these power supplies not only aids in building but also in future upgrades. The CORSAIR RM850e comes with a range of cables, including a 12V-2x6 connector and several PCIe connectors, ensuring compatibility with a variety of components. The GIGABYTE UD750GM PG5 V2 ICE also supports PCIe Gen 5.1 graphics cards, making it a future-proof choice for gamers and creators alike.

Cooling Performance

Cooling performance is critical in maintaining the longevity and reliability of a power supply. The CORSAIR RM850e utilizes a 120mm rifle bearing fan designed to keep noise levels low, even under full load. This makes it an excellent option for users who prioritize a quiet operation.

On the other hand, the GIGABYTE UD750GM PG5 V2 ICE features a 120mm smart hydraulic bearing fan. This type of fan is known for its efficient cooling capabilities and quieter operation. Both units are engineered to keep temperatures in check, but the choice may boil down to personal preference regarding noise levels and fan design.

Component Quality and Longevity

The quality of components used in a power supply can greatly affect its overall performance and lifespan. The CORSAIR RM850e is built with 105°C-rated capacitors, which are designed for high reliability and efficiency. This rating indicates that the capacitors can operate at higher temperatures without failing, thus enhancing the durability of the power supply.

In comparison, the GIGABYTE UD750GM PG5 V2 ICE utilizes 100% Japanese capacitors, known for their high quality. These components are also designed to ensure stable power output and performance. While both power supplies utilize high-quality materials, the slightly higher temperature rating of the CORSAIR RM850e may offer a marginal advantage in demanding environments.

Compatibility and Future-Proofing

Future-proofing is a vital consideration when investing in a power supply. The CORSAIR RM850e is certified for ATX 3.1 and PCIe 5.1, which means it can handle the latest hardware demands, including next-gen GPUs. Its additional power capacity also allows it to support more powerful components as they become available.

Similarly, the GIGABYTE UD750GM PG5 V2 ICE is also ATX 3.1 certified and supports PCIe 5.1 graphics cards. While it has a slightly lower power output, it still offers enough wattage for most modern builds and is equipped to handle future upgrades. Users should consider their current and anticipated hardware when deciding between these two models.

Price and Value for Money

The price difference between the CORSAIR RM850e and the GIGABYTE UD750GM PG5 V2 ICE is noteworthy. At $94.99, the CORSAIR model is priced higher than the GIGABYTE model, which retails at $79.99. This makes the GIGABYTE UD750GM PG5 V2 ICE a more attractive option for budget-conscious users.

However, value is not solely determined by price. The additional capacity, component quality, and features of the CORSAIR RM850e may justify its higher price for users who require a more robust power supply. Ultimately, the decision will depend on specific needs and preferences regarding performance and budget.

Which should you buy?

Choosing between the CORSAIR RM850e and the GIGABYTE UD750GM PG5 V2 ICE ultimately comes down to your specific needs and budget. If you require higher power capacity and slightly better component ratings, the CORSAIR RM850e may be the better choice despite its higher price. However, if you're looking for a more cost-effective option with solid performance and efficiency, the GIGABYTE UD750GM PG5 V2 ICE offers excellent value at a lower price point. Consider your current and future hardware requirements to make the best decision for your build.