CORSAIR RM850e vs NZXT C850 Gold ATX 3.1 - Fully Modular Low-Noise PC Gaming Power Supply - 850 Wa

Price Comparison

The CORSAIR RM850e is priced at £85.99, while the NZXT C850 Gold comes in slightly cheaper at £84.90. This price difference of £1.09 may seem minimal, but it can be significant when considering budget constraints in building or upgrading your PC. Both products fall into a similar price range, making them competitive options for users looking for a reliable power supply. The slight edge in price for the NZXT could make it a more appealing choice for those prioritising cost without sacrificing quality.

Efficiency and Certification

Both power supplies are compliant with the ATX 3.1 standard, ensuring high efficiency and stability for high-performance PC components. The CORSAIR RM850e delivers a modern standby capability, which allows for extremely fast wake-from-sleep times and improved low-load efficiency. On the other hand, the NZXT C850 Gold includes a 50 SERIES READY feature, specifically designed to support NVIDIA GeForce RTX 50 Series graphics cards with up to 600 watts through its durable connectors. This targeted efficiency makes the NZXT a compelling option for gamers and PC builders focused on performance.

Noise Levels

In terms of noise management, the CORSAIR RM850e employs a 120mm rifle bearing fan that effectively reduces noise levels, even under full load. Conversely, the NZXT C850 Gold features a larger 135mm fluid dynamic bearing fan that includes a Zero Fan Mode, which allows it to operate silently when under 50% load. This could be particularly beneficial for users who prioritise a quiet operating environment during gaming or other intensive tasks. The NZXT's capability for silent operation at lower loads could give it an advantage in noise-sensitive scenarios.

Build Quality

The build quality of both power supplies is noteworthy, with each brand using high-grade components. The CORSAIR RM850e utilises 105°C-rated capacitors, which enhance its reliability and electrical performance. In contrast, the NZXT C850 Gold is constructed with 100% premium Japanese capacitors, which not only improve hold-up time but also minimise ripple noise, ensuring stable power delivery. While both units boast excellent build quality, the choice may come down to brand preference and specific performance needs in terms of reliability and stability.

Cable Management

The CORSAIR RM850e features a fully modular design, allowing users to connect only the cables necessary for their build. This not only simplifies installation but also improves airflow within the case by reducing cable clutter. Similarly, the NZXT C850 Gold is also fully modular, providing the same benefits regarding cable management and airflow. Both power supplies excel in this area, making them suitable for users who value a neat and efficient build. The decision here may hinge on other features, as both options meet modern cable management standards.

Compatibility

When it comes to compatibility, both power supplies are designed to support a wide range of components. The CORSAIR RM850e is certified to support PCIe 5.1 platforms, ensuring it can handle the latest graphics cards and other high-performance components without issue. The NZXT C850 Gold, while not specifically mentioning PCIe 5.1, is compliant with the ATX 3.1 standard and is designed to handle the power needs of demanding gaming setups, particularly with its dedicated support for NVIDIA’s RTX 50 Series. Users should consider their specific component needs when choosing between these two power supplies.

Performance Under Load

Both power supplies demonstrate robust performance under load, with features that cater to high-demand scenarios. The CORSAIR RM850e is engineered to withstand 2x transient power excursions from the GPU, which is crucial for high-performance gaming and demanding applications. Meanwhile, the NZXT C850 Gold is built to fuel high-performance components with stability and efficiency, as highlighted by its design for handling power spikes effectively. Users can expect reliable performance from both units, but the CORSAIR’s specific handling of GPU power excursions may offer a slight edge for extreme use cases.

Which should you buy?

Choosing between the CORSAIR RM850e and the NZXT C850 Gold ultimately comes down to your specific needs and preferences. If you value a slightly lower price, quiet operation under lower loads, and a focus on components tailored for the latest graphics cards, the NZXT C850 Gold at £84.90 may be the better option. However, if you prioritise modern standby capabilities, excellent noise management even at full load, and a reputation for reliability with robust performance under transient loads, then the CORSAIR RM850e at £85.99 could be worth the extra investment. Both power supplies are excellent choices, ensuring that either option will serve you well in powering your PC build.