NZXT C850 SFX Gold - 850W SFX ATX 3.1 Power Supply - 80 Plus Gold - Cybenetics P vs GameMax 800W Rampage Power Supply

Design and Form Factor

The NZXT C850 SFX Gold is designed specifically for compact builds, featuring a small SFX form factor that maximises space efficiency. In contrast, the GameMax 800W Rampage Power Supply offers a more traditional design without specific emphasis on size, making it suitable for standard cases. The SFX form factor of the NZXT model delivers full-power capabilities while being optimised for small form factor (SFF) cases, which is a significant advantage for users with limited space. The Rampage, while a solid choice, lacks this compact design focus, potentially limiting its appeal for those looking to build smaller systems.

Efficiency Ratings

The NZXT C850 SFX Gold boasts an 80 PLUS Gold certification, ensuring high efficiency with reduced heat output. This means it operates efficiently at high loads and can contribute to lower electricity bills over time. On the other hand, the GameMax 800W Rampage is 80 Plus Bronze certified, achieving an efficiency of up to 88% at a 50% load. While this is respectable, it falls short of the premium efficiency offered by the NZXT model, which has a Cybenetics Platinum rating that further enhances its energy-saving capabilities. Users prioritising efficiency will find the NZXT C850 a superior option.

Cooling Technology

The cooling solutions of both power supplies differ significantly. The NZXT C850 features a 92 mm fluid dynamic bearing (FDB) fan that not only provides efficient cooling but also includes a Zero RPM mode for silent operation. This ensures that the system remains quiet during low loads, making it ideal for users who value a quiet working environment. In comparison, the GameMax Rampage utilises a larger 14 cm cooling fan, designed to deliver silent yet effective cooling. While both units focus on quiet operation, the NZXT's advanced fan technology and features may provide an edge in maintaining lower noise levels under varying loads.

Power Delivery

When it comes to power delivery, the NZXT C850 SFX Gold excels with its ATX 3.1 certification and a robust 600W 12V-2x6 connector, ensuring safe and dependable power for modern graphics cards. This makes it an excellent choice for high-performance gaming rigs or workstations that demand reliable power delivery. The GameMax 800W Rampage also offers strong power capabilities with its single 12V rail designed for high compatibility and extreme current output. However, the more modern standards and dedicated connectors of the NZXT supply make it more future-proof, particularly for users planning to upgrade their graphics cards.

Component Quality

The quality of components used in each power supply is a crucial factor. The NZXT C850 is built to high standards, featuring a Cybenetics A- noise rating and low ripple noise, which ensures tight voltage regulation and stable system performance. This level of quality is indicative of a premium product designed to protect components and maintain system stability. Conversely, the GameMax Rampage includes a Japanese TK main capacitor which enhances its reliability and life expectancy. While this is a commendable feature, the overall component quality and performance stability of the NZXT C850 SFX Gold position it as the more robust option.

Aesthetics and Build Quality

Aesthetics play a role in many builders' decisions, and here, both power supplies have their merits. The NZXT C850 features a sleek, compact design tailored for modern builds, making it visually appealing to users focused on aesthetics. Additionally, its compact size allows for better cable management and airflow within smaller cases. The GameMax Rampage, with its flat black cables, aims to improve aesthetics and ease of cable management as well. However, the overall build quality and refined design of the NZXT power supply may appeal more to users who prioritise aesthetics alongside functionality.

Price Comparison

The NZXT C850 SFX Gold is priced at £129.98, reflecting its premium features, efficiency ratings, and reliability. This higher price point is justified by the advanced technology and design aimed at compact builds. In contrast, the GameMax 800W Rampage is available for a budget-friendly £45.94, making it an attractive option for those looking for a reliable power supply without breaking the bank. However, the significant difference in price also highlights the differences in features and performance, as the NZXT model offers a more advanced solution for discerning users.

Which should you buy?

Choosing between the NZXT C850 SFX Gold and the GameMax 800W Rampage largely depends on your specific needs and budget. If you are building a compact system and prioritise efficiency, reliability, and premium components, the NZXT C850 is clearly the superior choice despite its higher price. However, if you are seeking a budget-friendly option for a basic system or a gaming rig without the need for the latest specifications, the GameMax Rampage offers solid performance at a more accessible price point. Ultimately, both power supplies cater to different user preferences, making it essential to evaluate your requirements carefully before making a decision.