NZXT C850 SFX Gold - 850W SFX ATX 3.1 Power Supply - 80 Plus Gold - Cybenetics P vs be quiet! Power Zone 1000W Power Supply

Overview of the Products

In this comparison, we will examine the NZXT C850 SFX Gold and the be quiet! Power Zone 1000W power supplies. The NZXT C850 is priced at £129.98, while the be quiet! Power Zone is available for £143.99. Both power supplies focus on efficiency and performance but cater to different needs and system configurations.

Design and Form Factor

The NZXT C850 SFX Gold is designed for compact builds, making it an excellent choice for small form factor (SFF) cases. Its SFX form factor allows it to deliver full-power capabilities while maximising space efficiency. In contrast, the be quiet! Power Zone 1000W adopts a traditional ATX design, providing versatility for larger systems. With its larger size, the Power Zone can accommodate more powerful components but may not fit in smaller cases. Ultimately, the choice of design depends on your specific build requirements and space constraints.

Efficiency Ratings

Efficiency is a crucial factor in modern power supplies, and both units excel in this area. The NZXT C850 boasts an 80 PLUS Gold certification, indicating high-efficiency performance that reduces heat output. On the other hand, the be quiet! Power Zone holds an 80 PLUS Platinum certification, which offers even greater efficiency, with a rating of up to 94.0%. This means that the Power Zone may result in lower power consumption and cooler operation, making it a better choice for high-end systems that demand more power.

Cooling Solutions

Cooling solutions are vital for power supplies, especially under load. The NZXT C850 features a 92 mm fluid dynamic bearing (FDB) fan that operates quietly, with a Zero RPM mode for silent operation during low loads. In comparison, the be quiet! Power Zone utilises a larger Pure Wings 3 140mm fan, which also turns off completely under low loads, ensuring quiet performance. The larger fan of the Power Zone may provide more effective cooling during demanding tasks, making it suitable for systems with high power requirements.

Power Output and Stability

When it comes to power output, the be quiet! Power Zone clearly has the upper hand, offering 1000W of continuous power through a single massive 12V rail. This allows it to handle power excursions up to double its rated capacity, ensuring reliability for demanding graphics cards and processors. In contrast, the NZXT C850 provides 850W, which is still substantial but may limit its performance in extremely high-end setups. The Power Zone's ability to manage transient loads effectively may appeal to users with power-hungry components.

Connectivity Options

Both power supplies offer a range of connectivity options, but their approaches differ. The NZXT C850 comes with a 600W 12V-2x6 connector for modern graphics cards, ensuring compatibility with the latest GPUs. Additionally, it features ATX 3.1 certification, which is essential for current and future components. The be quiet! Power Zone also supports next-generation PCIe 5.1 graphics cards, with native integration of the 12V-2x6 connector and three PCIe 6+2-pin connectors for current-gen GPUs. This versatility makes the Power Zone a more future-proof option for users looking to upgrade their systems.

Noise Levels

Both the NZXT C850 and be quiet! Power Zone are designed to operate quietly, but their methods differ. The NZXT C850 is rated with a Cybenetics A- noise rating, indicating its efficiency in maintaining low noise levels during operation. Meanwhile, the be quiet! Power Zone is engineered for silent operation, with its large fan contributing to minimal noise even under load. Users prioritising a quiet system may find both options suitable, but the larger fan of the Power Zone could potentially offer quieter performance in demanding scenarios.

Pricing and Value

The NZXT C850 is priced at £129.98, while the be quiet! Power Zone is slightly more expensive at £143.99. Despite the higher price, the Power Zone's superior efficiency, increased power output, and advanced cooling solutions may justify the additional cost for serious gamers and content creators. The NZXT C850, however, presents a more affordable choice for users building compact systems who still want a reliable and efficient power supply.

Which should you buy?

Choosing between the NZXT C850 SFX Gold and the be quiet! Power Zone 1000W ultimately depends on your specific needs. If you require a compact power supply for a small form factor build and prefer a lower price point, the NZXT C850 is an excellent option. However, if you're looking for maximum efficiency, higher power output, and superior cooling capabilities, the be quiet! Power Zone is the better choice, particularly for high-performance systems. Both power supplies offer unique benefits, so consider your system requirements and budget carefully before making a decision.