NZXT C850 Gold ATX 3.1 - Fully Modular Low-Noise PC Gaming Power Supply - 850 Wa vs CORSAIR RM750e

Overview of the NZXT C850 Gold and CORSAIR RM750e

The NZXT C850 Gold and the CORSAIR RM750e are both exceptional power supplies designed for high-performance gaming PCs. The C850 Gold is priced at £84.90, while the RM750e is slightly more affordable at £81.99. Both units are compliant with the ATX 3.1 standard, ensuring they can efficiently power modern components. However, they differ in features that may influence your purchasing decision, such as noise levels and modularity.

Design and Build Quality

The NZXT C850 Gold showcases high-quality construction with 100% premium Japanese capacitors, which are known for improving hold-up time and minimising ripple noise. This design philosophy ensures reliable and stable power delivery, crucial for a gaming setup. In contrast, the CORSAIR RM750e is also built to a high standard, featuring 105°C-rated capacitors that promise steady power and dependable electrical performance. Both power supplies exhibit excellent build quality, but the C850 Gold’s use of Japanese capacitors may give it a slight edge in reliability.

Noise Levels

When it comes to noise levels, the NZXT C850 Gold has a notable advantage with its ultra-low noise 135mm fluid dynamic bearing fan, which operates silently under 50% load due to its Zero Fan Mode. This means that for less demanding tasks, users can enjoy a completely silent experience. On the other hand, the CORSAIR RM750e features a 120mm rifle bearing fan, which is designed to keep noise to a minimum even when under full load. While both units are engineered for quiet operation, the C850 Gold’s Zero Fan Mode provides a distinct benefit for those prioritising silence during low-load conditions.

Modularity

Modularity is an essential feature for many builders, and both the NZXT C850 Gold and CORSAIR RM750e are fully modular power supplies. This means users can connect only the cables they need, reducing clutter and improving airflow within the PC case. The C850 Gold’s design allows it to support high-performance graphics cards, including NVIDIA GeForce RTX 50 Series, thanks to its durable, heat-resistant connectors. The RM750e also excels with its fully modular cabling, allowing for a tidy build. The focus on modularity in both units gives users the flexibility to tailor their setups without unnecessary cables.

Efficiency and Performance

The NZXT C850 Gold is designed to deliver 850 watts of power, making it suitable for high-performance systems that demand more energy. This power capacity, combined with its ATX 3.1 compliance, ensures it can handle power spikes effectively. The CORSAIR RM750e, while slightly less powerful at 750 watts, is still robust enough for most gaming rigs. Both units are efficient, but the C850 Gold’s higher wattage may be more appealing to users planning to run power-hungry components or overclock their systems.

Compatibility

Both the NZXT C850 Gold and CORSAIR RM750e are Intel ATX 3.1 certified, which means they support the latest standards in power supply technology, including compatibility with PCIe 5.1 platforms. This certification is crucial for those looking to build a future-proof system. The C850 Gold is particularly noted for its ability to support NVIDIA’s latest graphics cards, making it an excellent choice for gamers who want to ensure their system can handle the latest hardware advancements. The RM750e, while also compatible with modern components, may not offer the same level of assurance for the most demanding GPUs.

Cooling Solutions

Cooling is vital for maintaining system stability, especially during intense gaming sessions. The NZXT C850 Gold’s 135mm fan operates silently under low loads, which helps to maintain a cooler environment without the distraction of fan noise. In comparison, the CORSAIR RM750e’s 120mm fan is designed with a specially calculated curve to minimise noise even under full load, ensuring that cooling performance does not come at the expense of quiet operation. Both power supplies effectively manage heat, but the C850 Gold’s advanced fan technology provides a notable advantage in quieter settings.

Which should you buy?

In deciding between the NZXT C850 Gold and the CORSAIR RM750e, consider your specific needs and priorities. If you require a higher wattage for a power-intensive build and value silent operation, the C850 Gold at £84.90 is a compelling choice. However, if you're looking for a reliable, slightly more affordable option at £81.99, and your power requirements are moderate, the RM750e offers excellent performance and flexibility. Ultimately, both power supplies are excellent choices, but your decision should hinge on your system's specific demands and your preference for noise levels during operation.