NZXT C850 Gold ATX 3.1 - Fully Modular Low-Noise PC Gaming Power Supply - 850 Wa vs SAMA G850 Power Supply - 850W Fully Modular 80 Plus Gold Certified ATX 3.1 & PCI

Overview of the NZXT C850 Gold and SAMA G850

The NZXT C850 Gold and SAMA G850 are both 850W, fully modular power supplies, designed to meet the demands of modern gaming and high-performance PCs. Priced at £84.90 and £84.99 respectively, they cater to users looking for reliable power delivery with efficiency. Both products comply with the ATX 3.1 standard and offer compatibility with the latest NVIDIA GeForce RTX 50 Series graphics cards, making them suitable for gamers and professionals alike.

Build Quality and Components

The NZXT C850 Gold is built with 100% premium Japanese capacitors, which enhance its hold-up time and reduce ripple noise, ensuring stable power delivery. In comparison, the SAMA G850 also utilises high-quality Japanese capacitors, promoting longevity and stability. This commitment to quality construction is evident in both models, but the NZXT specifically highlights its design aimed at minimal ripple noise, which is crucial for maintaining a quiet operating environment.

Noise Levels and Cooling

The NZXT C850 Gold features a 135mm fluid dynamic bearing fan that operates silently when the load is below 50%. This design focuses on low noise levels, making it a great choice for users who prefer quiet systems. On the other hand, the SAMA G850 is equipped with a 140mm ECO fan, also designed for quiet operation, but it does not explicitly mention a silent mode under varying loads. Both power supplies aim to keep noise to a minimum, but the NZXT offers specific technology for absolute silence under light loads.

Efficiency Ratings

The SAMA G850 boasts an 80 Plus Gold certification, achieving up to 91.15% efficiency at typical loads. This means it reduces power waste and heat generation, which is essential for energy-conscious users. The NZXT C850 Gold is also compliant with the ATX 3.1 standard, although it does not specify an efficiency rating in the provided data. While both power supplies are designed for high performance, the SAMA G850's explicit efficiency claim gives it the edge in terms of energy savings.

Modular Design and Cable Management

Both the NZXT C850 Gold and SAMA G850 feature fully modular cable designs, which enhance airflow and cleanliness within the PC case. The NZXT model particularly highlights its compatibility with the NVIDIA GeForce RTX 50 Series through its durable, heat-resistant 12V-2x6 connector. Conversely, the SAMA G850 focuses on the aesthetic benefits of cable management, allowing users to connect only the cables they need. Both designs facilitate cleaner builds, but the NZXT emphasises functionality with its specific connector for the latest graphics cards.

Size and Form Factor

The SAMA G850 has a compact form factor, measuring 150×150×86mm, which is advantageous for fitting into smaller cases without compromising performance. The NZXT C850 Gold does not specify its dimensions in the provided data. A smaller form factor can be critical for users with limited space, making the SAMA G850 potentially more versatile in various build scenarios.

Protections and Safety Features

Safety is paramount in power supplies, and both the NZXT C850 Gold and SAMA G850 include multiple protections to ensure safe operation. The SAMA G850 features a comprehensive set of protections, including Over Voltage Protection (OVP), Over Current Protection (OCP), Over Temperature Protection (OTP), Over Power Protection (OPP), Short Circuit Protection (SCP), Under Voltage Protection (UVP), and Surge Immunity Protection (SIP). While the NZXT does not list specific protections, its high-quality construction suggests a focus on reliability. The SAMA G850's extensive protection features may provide added peace of mind for users concerned about potential power issues.

Which should you buy?

When deciding between the NZXT C850 Gold and SAMA G850, both power supplies offer solid performance with their 850W output and modern ATX 3.1 compliance. However, if quiet operation and premium build quality are your primary concerns, the NZXT C850 Gold stands out with its advanced noise-reduction technology and superior capacitor quality. On the other hand, if you prioritise efficiency and comprehensive safety features, the SAMA G850, with its 80 Plus Gold certification and extensive protection mechanisms, may be the better choice. Ultimately, your decision should be based on your specific needs—quietness and build quality versus energy efficiency and safety features.