CORSAIR RM Series , RM650, Fully Modular Power Supply vs GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Price Comparison

When it comes to pricing, the GIGABYTE UD750GM PG5 ICE stands out as the more affordable option at $79.99, which is about 43% cheaper than the CORSAIR RM Series at $138.31. This price difference may significantly influence budget-conscious consumers looking for a reliable power supply. While the CORSAIR RM650 offers superior features, the cost-effectiveness of the GIGABYTE model is hard to ignore, especially for those who want a solid power supply without breaking the bank.

Power Capacity

In terms of power capacity, the GIGABYTE UD750GM PG5 ICE has a total output of 750W, compared to the 650W offered by the CORSAIR RM650. This gives the GIGABYTE model a distinct advantage for users with high-performance systems or those planning to run multiple demanding components. The additional 100W can make a difference in stability and performance, particularly when using the latest hardware. Hence, for users needing more power headroom, the GIGABYTE is the clear winner.

Efficiency Ratings

Both power supplies boast impressive efficiency ratings, but the GIGABYTE UD750GM PG5 ICE takes the lead with its 80 PLUS Platinum certification. This certification indicates a higher efficiency compared to the CORSAIR RM Series, which is rated at 80 PLUS Gold. Platinum-rated power supplies typically offer around 90% efficiency at typical loads, while Gold-rated units offer about 87%. This difference can lead to lower electricity bills and less heat generation, making the GIGABYTE a more appealing choice for efficiency-focused users.

Modular Design

Both the CORSAIR RM650 and the GIGABYTE UD750GM PG5 ICE feature fully modular designs, allowing users to connect only the cables they need. This design choice contributes to cleaner cable management and improved airflow within the case. However, the GIGABYTE model includes a single +12V rail setup, which may simplify power distribution for high-performance components. While both offer modularity, the specific advantages of the GIGABYTE's design may appeal to users who prioritize ease of installation and management.

Cooling Solutions

The cooling solutions differ significantly between these two models. The CORSAIR RM Series features a 140mm rifle bearing fan that operates in a zero RPM mode for near-silent operation under low to medium loads. On the other hand, the GIGABYTE UD750GM PG5 ICE is equipped with a 120mm smart hydraulic bearing fan. While both fans are designed to manage heat effectively, the larger fan in the CORSAIR model may provide quieter operation and better cooling at higher loads due to its size and design. This could be a deciding factor for users who value a silent PC.

Component Quality

Component quality is an essential factor to consider when choosing a power supply, and both brands offer high-quality materials. The CORSAIR RM Series is built with industrial-grade, 105°C-rated capacitors, which promise reliability and performance longevity. Similarly, the GIGABYTE UD750GM PG5 ICE uses 100% Japanese capacitors known for their durability and efficiency. While both power supplies utilize high-quality components, the specific choice of capacitors can impact overall performance and reliability, making this an important consideration for discerning users.

Compatibility and Future-Proofing

The GIGABYTE UD750GM PG5 ICE offers compatibility with PCIe Gen 5.1 graphics cards, making it a more future-proof choice for gamers and enthusiasts looking to upgrade their systems with the latest hardware. In contrast, the CORSAIR RM650, while compatible with modern components, does not specifically highlight support for the latest PCIe standards. Those who plan to invest in next-generation graphics cards will find the GIGABYTE model to be a more forward-thinking option, ensuring that their power supply can handle future upgrades.

Which should you buy?

Ultimately, the choice between the CORSAIR RM Series and the GIGABYTE UD750GM PG5 ICE depends on your specific needs and priorities. If you are looking for a power supply with more power capacity, higher efficiency, and future-proofing, the GIGABYTE UD750GM PG5 ICE at $79.99 is the better choice. However, if you prioritize quieter operation and a reputed brand with a focus on component quality, the CORSAIR RM650 at $138.31 may be worth the investment. Both units offer solid performance, making either a reliable choice for your PC build.