NZXT C850 SFX Gold - 850W SFX ATX 3.1 Power Supply - 80 Plus Gold - Cybenetics P vs SAMA G850 Power Supply - 850W Fully Modular 80 Plus Gold Certified ATX 3.1 & PCI

Price Comparison

When considering the price, the SAMA G850 Power Supply stands out as the more budget-friendly option at £84.99, compared to the NZXT C850 SFX Gold, which is priced at £129.98. This nearly £45 difference can be significant for consumers on a tighter budget. However, the price point may reflect differences in features and performance. While the SAMA offers excellent value for its price, the higher cost of the NZXT may indicate superior specifications and build quality that justify the investment for users requiring more performance.

Efficiency Ratings

Efficiency is a crucial factor when selecting a power supply and both the NZXT C850 and SAMA G850 boast impressive 80 Plus Gold certifications. The NZXT C850 touts Cybenetics Platinum efficiency ratings, suggesting it may operate at an even higher efficiency level than typical 80 Plus Gold supplies. This means that while both units are designed to minimise energy waste, the NZXT could potentially save more on energy costs over time. The SAMA claims to achieve up to 91.15% efficiency at typical loads, providing a solid performance for energy-conscious consumers.

Design and Form Factor

The NZXT C850 features a compact SFX form factor, optimising space for small form factor (SFF) builds, making it ideal for users with limited space. In contrast, the SAMA G850 adheres to the standard ATX size, which allows for compatibility with a broader range of cases but may not fit in tighter setups. This distinction highlights the NZXT's design philosophy aimed specifically at compact builds, while the SAMA caters to traditional configurations and may appeal to users looking for a more standard installation.

Cable Management

Both power supplies offer modular designs, enhancing cable management. However, the SAMA G850 is fully modular, allowing users to only connect the cables they need, which improves airflow and aesthetics significantly. The NZXT C850, while not specified as fully modular, also offers a streamlined setup with its efficient design. This difference may sway users who prioritise a clean and tidy build, as the fully modular setup of the SAMA provides more flexibility in cable management.

Cooling Solutions

Cooling performance can significantly affect power supply longevity and performance. The NZXT C850 is equipped with a 92 mm fluid dynamic bearing (FDB) fan, which includes a Zero RPM mode for silent operation, making it an excellent choice for quiet builds. Meanwhile, the SAMA G850 features a larger 140 mm FDB fan, which is designed to provide effective cooling while also ensuring quiet operation. The larger fan could potentially lead to better cooling efficiency, which might be an important consideration for high-performance systems that generate more heat.

Protection Features

In terms of safety, both power supplies are designed with multiple protections to ensure safe operation. The NZXT C850 includes features like low ripple noise and tight voltage regulation, which help maintain system stability. On the other hand, the SAMA G850 boasts an extensive list of protections, including OVP, OCP, OTP, OPP, SCP, UVP, and SIP. This abundance of safeguards may provide peace of mind for users concerned about component safety and reliability under heavy loads or adverse conditions.

Compatibility with Modern Hardware

Both power supplies are designed to support modern graphics cards, with the NZXT C850 providing a 600W 12V-2x6 connector for contemporary GPUs, ensuring reliable power delivery. Similarly, the SAMA G850 features a native 12V-2x6 connector for NVIDIA's RTX 50 and 40 Series, confirming its compatibility with the latest graphics technology. This parallel in modern connectivity means that both units are well-suited for current gaming and workstation setups, making either choice viable for users needing to power high-performance components.

Which should you buy?

Ultimately, the decision between the NZXT C850 SFX Gold and the SAMA G850 Power Supply hinges on your specific needs and preferences. If you require a compact power supply for a small form factor build and are willing to invest more for potentially superior efficiency and performance, the NZXT C850 is a strong contender. However, if budget constraints are a primary concern and you prefer a fully modular design with ample cooling capabilities, the SAMA G850 offers excellent value and performance for its price. Your choice will depend on weighing factors like price, efficiency, design, cooling, and the specific requirements of your build.