ASUS ROG Thor 1200W Platinum III PSU vs CORSAIR RM850x Fully Modular Low-Noise ATX Power

Price Comparison

The ASUS ROG Thor 1200W Platinum III PSU is priced at $432.35, while the CORSAIR RM850x is significantly cheaper at $161.93, making it about 63% less expensive. For users on a budget, the price difference is substantial, as the RM850x allows for savings that can be allocated toward other components or upgrades. The ROG Thor may justify its higher price with features that cater to high-end setups, but for many users, the value offered by the RM850x is hard to overlook, especially in light of its solid performance and efficiency ratings.

Power Efficiency

The ASUS ROG Thor boasts an impressive 80 PLUS Platinum certification, making it a leader in power efficiency. It utilizes GaN MOSFET technology, which delivers up to 30% more power efficiency compared to standard MOSFETs. In contrast, the CORSAIR RM850x is Cybenetics Gold-Certified, achieving up to 91% efficiency. While the ROG Thor has the edge in efficiency, the RM850x still offers competitive performance, especially for users looking for a reliable power supply without the premium price tag. Both options provide effective power management but cater to different tiers of performance requirements.

Build Quality and Design

In terms of build quality, the ASUS ROG Thor stands out with its fully aluminum enclosure and dual-ball fan bearings, which can last up to twice as long as standard sleeve bearings. The design is also equipped with ROG heatsinks for superior cooling performance. On the other hand, the CORSAIR RM850x features embossed cables with low-profile combs, which add to the aesthetics of a build while ensuring ease of installation. While both power supplies are well-constructed, the ROG Thor’s use of premium materials may provide additional peace of mind for high-performance gamers and PC builders focused on longevity and thermal management.

Features and Functionality

The ASUS ROG Thor is packed with features aimed at gamers and high-performance users, including a magnetic OLED display that provides real-time power draw information, a Turbo Mode for extended power capabilities, and a GPU-First intelligent voltage stabilizer that enhances performance for graphics cards by up to 45%. In contrast, the CORSAIR RM850x focuses on simplicity and functionality with its fully modular design, allowing users to connect only the necessary cables. The RM850x also supports PCIe 5.1 and has a native 12V-2x6 connector for modern graphics cards. While the ROG Thor offers more advanced features, the RM850x provides essential functionality that suits most users well.

Compatibility

Both power supplies are compliant with ATX 3.1 standards, ensuring they can support the latest hardware. The ASUS ROG Thor is designed to deliver enhanced voltage and current regulation, which is crucial for demanding setups. The CORSAIR RM850x also supports PCIe 5.1, making it compatible with the newest graphics cards without the need for adapters. This commonality means that either power supply will fit well into modern builds, but the ROG Thor may cater more specifically to high-end systems that require optimized power delivery.

Noise Levels

Noise is an important consideration for many PC builders. The ASUS ROG Thor features a fine-tuned fan curve and premium components that allow for quieter operation during heavy loads. The dual-ball-bearing fans are designed for longevity and reduced noise. On the other hand, the CORSAIR RM850x is marketed as a low-noise power supply, utilizing a 140mm FDB fan for quiet cooling. While both PSUs aim to minimize noise, the ROG Thor may have a slight advantage in terms of thermal management and quieter performance under duress, making it a better choice for silence-sensitive environments.

Warranty and Support

The ASUS ROG Thor comes with an impressive 10-year warranty, reflecting ASUS's confidence in the product's durability and performance. The CORSAIR RM850x also offers a commendable 10-year warranty, ensuring customers have ample support should any issues arise. Both warranties provide peace of mind and demonstrate the manufacturers' commitment to quality. However, the ROG Thor's additional features and higher efficiency may justify its price for users who prioritize long-term investment in their systems.

Which should you buy?

Choosing between the ASUS ROG Thor 1200W Platinum III PSU and the CORSAIR RM850x ultimately depends on your specific needs and budget. If you require a high-performance unit with advanced features, exceptional efficiency, and a premium build, the ROG Thor is a worthy investment at $432.35. Conversely, if you are looking for a more budget-friendly option that still delivers solid performance and modularity, the CORSAIR RM850x at $161.93 offers excellent value. Consider your system requirements, power needs, and budget constraints to determine which power supply will best suit your setup.