CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX vs NZXT C850 Gold Core - 850W ATX 3.1 Power Supply -

Price Comparison

The CORSAIR CX550 is priced at $65.99, while the NZXT C850 Gold Core is available for $99.99, making the CORSAIR about 17% cheaper. This price difference might make the CX550 appealing for budget-conscious buyers who still want reliable performance from a power supply. However, the cost of the NZXT reflects its premium features and higher wattage, which could justify the additional expense for those looking for a more robust power solution.

Efficiency Ratings

The CORSAIR CX550 boasts an 80 PLUS Bronze certification, achieving up to 88% operational efficiency. In contrast, the NZXT C850 Gold Core is rated at 80 PLUS Gold and Cybenetics Platinum efficiency, delivering even higher energy efficiency compared to its competitor. This means that while the CX550 is efficient, the NZXT provides superior performance in terms of energy savings, particularly under heavy loads, which may appeal to users focused on reducing electricity costs over time.

Cooling Performance

The CORSAIR CX550 features a 120mm thermally controlled low-noise cooling fan, which operates quietly under low loads but ramps up during heavy usage. The NZXT C850 Gold Core, however, includes a 135mm fluid dynamic bearing fan with a Zero RPM mode, ensuring that it remains exceptionally quiet during light workloads, rated at under 15 dBA. If noise levels are a significant concern, the NZXT's advanced cooling technology may provide a more appealing choice for users who prioritize silence in their builds.

Modular Design

In terms of design, the CORSAIR CX550 is a non-modular power supply, which means all cables are permanently attached. This can lead to a cluttered interior in PC cases if not managed properly. On the other hand, the NZXT C850 Gold Core is fully modular, allowing users to connect only the cables they need. This not only facilitates better airflow within the case but also simplifies cable management, making the NZXT a preferable option for those who value a clean and organized setup.

Compatibility

The CORSAIR CX550 delivers full continuous power, making it reliable for various builds, but it may not support the latest technologies as effectively as the NZXT. The NZXT C850 Gold Core is ATX 3.1 certified and PCIe 5.1 ready, which means it is designed to support next-generation GPUs, particularly modern NVIDIA graphics cards. This makes the NZXT a better choice for gamers and PC builders who want to future-proof their systems with the latest hardware.

Build Quality and Components

The build quality of a power supply is crucial for long-term performance. The CORSAIR CX550 is backed by a three-year warranty, which provides a level of assurance for users. In comparison, the NZXT C850 Gold Core features premium 105°C-rated capacitors and is backed by a seven-year warranty, indicating a commitment to durability and reliability. Users who prioritize longevity and high-quality components might find the NZXT's specifications more appealing.

User Experience and Installation

Installation can vary significantly between these two models. The CORSAIR CX550's compact casing design (125mm in length) ensures it fits easily into most modern cases. However, its non-modular setup might complicate the installation process for some users. The NZXT C850 Gold Core’s fully modular design simplifies the installation process as users can choose only the necessary cables, enhancing the overall user experience. For those who are less experienced with PC building, this ease of installation could be a significant advantage.

Which should you buy?

Choosing between the CORSAIR CX550 and the NZXT C850 Gold Core ultimately depends on your specific needs. If you're looking for a budget-friendly option that delivers solid efficiency and performance, the CORSAIR CX550 is a great choice at $65.99. On the other hand, if you require a high-wattage power supply with advanced features such as modularity, superior efficiency, and a longer warranty, the NZXT C850 Gold Core at $99.99 will be worth the investment. Weigh these factors carefully to determine which power supply aligns best with your build and budget considerations.