NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - 80 PLUS Gold - Cybenetics Plat vs CORSAIR RM1000x SHIFT

Overview of Power Supplies

When comparing the NZXT C850 Gold Core and the CORSAIR RM1000x SHIFT, it's clear that both power supplies are designed for performance-oriented users. The NZXT C850 Gold Core is priced at £89.99, while the CORSAIR RM1000x SHIFT is significantly higher at £164.99. This price difference is indicative of the features and capabilities offered by each unit, catering to different user needs and system requirements.

Efficiency and Performance

The NZXT C850 Gold Core boasts an 80 PLUS Gold certification, ensuring high energy efficiency and stable performance. This rating suggests that the unit can deliver at least 87% efficiency at 20% and 100% loads, which is beneficial for reducing power draw and heat generation. On the other hand, the CORSAIR RM1000x SHIFT does not specify a certification but is designed to utilise a native 12V-2x6 GPU cable, assuring compatibility with modern graphics cards like the NVIDIA GeForce RTX 50 Series. The C850 offers Cybenetics Platinum efficiency, which may imply even better performance under demanding loads.

Noise Levels

The NZXT C850 Gold Core is designed for whisper-quiet operation, receiving an A++ noise certification for its performance level. With a noise level below 15 dBA, it is ideal for users who prioritise a silent computing environment. In contrast, the CORSAIR RM1000x SHIFT features a 140mm fluid dynamic bearing fan, which is known for its reliability and low noise output, although no specific noise levels are provided. Users looking for a quieter experience might lean towards the NZXT C850 for its certified near-silent performance.

Cable Management

The CORSAIR RM1000x SHIFT excels in cable management with its innovative easy-access connection position. This design allows users to connect cables from the side of the PSU, simplifying the process and leading to cleaner builds. The fully modular connectors allow for only essential cables to be used, which can significantly improve airflow within the case. The NZXT C850 also supports modern GPUs but lacks the same level of modularity and ease of access as the RM1000x SHIFT, potentially making it less appealing for those who prioritise clean cable management.

Compatibility with Modern GPUs

Both power supplies cater to modern gaming setups but differ in their approach. The NZXT C850 Gold Core features a dual-colour 12V-2x6 connector, ensuring safe and stable power delivery for next-gen GPUs. It supports up to three 8-pin PCIe cables, making it versatile for various configurations. The CORSAIR RM1000x SHIFT also offers a native 12V-2x6 GPU cable, specifically designed for the latest graphics cards, ensuring users have what they need for high-performance gaming. The emphasis on modern GPU support is a strong point for both units.

Thermal Performance

Thermal performance is critical in power supplies, especially under load. The NZXT C850 comes with a 135mm fluid dynamic bearing fan equipped with a Zero RPM mode for light workloads, which reduces noise and increases efficiency. This feature allows the fan to remain off during low loads, contributing to overall system silence. Meanwhile, the CORSAIR RM1000x SHIFT utilises a specially calculated fan curve to balance performance and noise, though it does not offer a specific zero RPM feature. Users who want a quieter operation during light usage may prefer the NZXT C850.

Brand Reputation and Support

NZXT is well-known for its high-quality cooling solutions and power supplies, often favoured by gamers and PC builders alike. The C850 Gold Core is backed by a reputation for reliability and performance. Corsair, on the other hand, is a longstanding leader in the PC hardware industry, particularly known for their power supplies and peripherals. The RM1000x SHIFT benefits from Corsair's extensive customer support and warranty services, which can be a deciding factor for some users.

Price Comparison

The NZXT C850 Gold Core is priced at £89.99, making it an attractive option for budget-conscious gamers looking for a high-efficiency power supply. In contrast, the CORSAIR RM1000x SHIFT is priced at £164.99, reflecting its premium features and advanced design. Users must weigh the benefits of the higher cost against their specific needs, as the RM1000x SHIFT may justify its price for those seeking advanced cable management and superior compatibility with cutting-edge components.

Which should you buy?

Choosing between the NZXT C850 Gold Core and the CORSAIR RM1000x SHIFT ultimately depends on your specific needs and budget. If you are seeking an efficient and quiet power supply at a competitive price, the NZXT C850 Gold Core is an excellent choice. However, if you require advanced features like enhanced cable management and are willing to invest more, the CORSAIR RM1000x SHIFT offers significant advantages. Consider your system requirements and personal preferences to make the best decision for your build.