CORSAIR RM850x Fully Modular Low-Noise ATX Power vs GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus

Overview of the Products

The CORSAIR RM850x and the GIGABYTE UD750GM PG5 V2 ICE are two high-performance power supplies designed for modern PC builds. The RM850x is priced at $161.93, while the UD750GM is significantly cheaper at $79.99, making it about 51% less expensive. Despite the price difference, both power supplies are fully modular and comply with the latest ATX 3.1 and PCIe 5.1 standards, making them suitable for high-end gaming and workstation setups.

Power Output and Efficiency

When it comes to power output, the CORSAIR RM850x delivers 850W, which provides ample power for demanding configurations. In contrast, the GIGABYTE UD750GM offers a slightly lower capacity of 750W. However, the UD750GM boasts an 80 PLUS Platinum certification, while the RM850x is Cybenetics Gold certified, meaning the UD750GM is designed to be more energy-efficient, with less power loss during operation. This difference in efficiency can lead to lower electricity bills over time, appealing to eco-conscious users.

Modularity and Cable Management

Both the CORSAIR RM850x and the GIGABYTE UD750GM feature a fully modular design, allowing users to connect only the cables they need for their specific build. This modularity helps reduce cable clutter and improves airflow within the case. The RM850x includes ultra-flexible embossed cables, making installation straightforward and visually appealing. On the other hand, GIGABYTE's model also promotes ease of installation with its modular design, but does not highlight unique cable features. Thus, while both offer modularity, the aesthetic and flexibility of the RM850x may give it an edge for users focused on presentation.

Cooling Solutions

Cooling performance is crucial for maintaining system stability and longevity. The CORSAIR RM850x features a 140mm FDB fan designed for low noise operation, ensuring that it runs quietly under load. In contrast, the GIGABYTE UD750GM is equipped with a 120mm smart hydraulic bearing fan. While both fans are designed to keep the systems cool, the larger 140mm fan in the RM850x may provide more effective cooling due to its size, leading to potentially better thermal management during intense gaming sessions or heavy workloads.

Build Quality and Components

In terms of build quality, both power supplies use high-quality components. The CORSAIR RM850x is built with 100% Japanese 105°C-rated electrolytic capacitors, known for their durability and reliability. Similarly, the GIGABYTE UD750GM also utilizes 100% Japanese capacitors, which are essential for maintaining stable voltage and performance. While both brands emphasize quality, the RM850x's focus on higher temperature-rated capacitors may contribute to a longer lifespan and more consistent performance over time.

Warranty and Reliability

The warranty period can be a significant factor in assessing a power supply's reliability. The CORSAIR RM850x comes with an impressive ten-year warranty, providing peace of mind for users concerned about long-term performance and durability. In comparison, the GIGABYTE UD750GM does not specify a warranty duration, which may leave potential buyers wondering about its reliability over time. A longer warranty often reflects a manufacturer’s confidence in their product, and the RM850x's extended coverage may be a deciding factor for some consumers.

Price Comparison

The most notable difference between the two power supplies is their price. The CORSAIR RM850x is priced at $161.93, while the GIGABYTE UD750GM is listed at $79.99. This makes the GIGABYTE model about 51% cheaper than the CORSAIR option. While the price difference is significant, buyers should consider whether the additional features and higher power output of the RM850x justify the extra cost. For those on a tighter budget, the UD750GM offers a compelling option without compromising on essential features.

Which should you buy?

Ultimately, the decision between the CORSAIR RM850x and the GIGABYTE UD750GM PG5 V2 ICE depends on your specific needs and budget. If you require higher power output, superior cooling, and a longer warranty, the CORSAIR RM850x is worth the investment. However, if you are looking for a more budget-friendly option that still meets high efficiency standards, the GIGABYTE UD750GM is an excellent choice. Both power supplies are solid options, but your priorities will guide which is the better fit for your build.