Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W vs CORSAIR RM850x Fully Modular Low-Noise ATX Power

Overview

When comparing the Apevia ITX-PFC500W Mini ITX/Flex ATX Power Supply and the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply, there are significant differences in their design, pricing, and performance features. The Apevia power supply is priced at $49.99, making it about 69% cheaper than the CORSAIR option, which retails for $161.93. However, this price difference reflects the intended use cases and specifications of each product.

The Apevia ITX-PFC500W is designed primarily for small form factor builds, suitable for compact PCs and POS systems, while the CORSAIR RM850x targets high-performance gaming and workstation setups. Understanding these distinctions is crucial for potential buyers evaluating which power supply best suits their needs.

Design and Build Quality

The design and build quality of a power supply can significantly impact its performance and reliability. The Apevia ITX-PFC500W features a compact form factor, measuring just 160mm x 73.66mm x 35.5mm, making it ideal for tight spaces. Its fully modular design allows users to connect only the necessary cables, reducing clutter in smaller builds. On the other hand, the CORSAIR RM850x boasts a robust build with high-quality materials, highlighted by its Cybenetics Gold certification, ensuring it operates at up to 91% efficiency. The embossed cables with low-profile combs also enhance the aesthetic appeal and flexibility during installation.

While the Apevia focuses on compactness, the CORSAIR emphasizes efficiency and durability, appealing to users who prioritize a high-quality construction and performance in demanding environments.

Performance

Performance is a critical factor when choosing a power supply, particularly in high-demand situations like gaming or intensive computing tasks. The Apevia ITX-PFC500W provides a maximum output of 500W, which is adequate for low to mid-range systems but may fall short for more powerful configurations. In contrast, the CORSAIR RM850x offers an impressive 850W output, allowing for greater headroom for high-end graphics cards and multi-GPU setups.

The RM850x's efficient power delivery, coupled with its lower noise operation due to a 140mm FDB fan, makes it suitable for users who demand performance without excessive noise. Thus, while the Apevia serves well for basic applications, the CORSAIR excels in high-performance scenarios.

Efficiency and Certification

Efficiency in power supplies is crucial not only for performance but for energy savings and thermal management. The CORSAIR RM850x is Cybenetics Gold certified, guaranteeing up to 91% efficiency during operation. This high level of efficiency translates to lower electricity bills and reduced heat generation, which can extend the lifespan of the components within a system.

The Apevia ITX-PFC500W, while functional, does not carry a similar efficiency certification, and its lower power output may limit its effectiveness in power-hungry builds. This makes the CORSAIR a better choice for those looking to build a long-term, efficient system.

Compatibility

Compatibility with various system components is essential for any power supply. The Apevia ITX-PFC500W is tailored for Mini-ITX and FLEX ATX systems, making it a perfect fit for compact builds. It includes various connectors, such as a 20+4pin Main Power and 6+2 PCIe connectors, which cater to basic configurations.

Conversely, the CORSAIR RM850x is ATX 3.1 compliant and supports PCIe 5.1, making it suitable for the latest graphics cards and motherboards. Its native 12V-2x6 connector further enhances compatibility with modern components, ensuring users can build cutting-edge systems without the need for additional adapters. This broad compatibility makes the CORSAIR a more versatile choice for a wider range of builds.

Cooling Solutions

Effective cooling is vital for maintaining system stability and longevity. The Apevia ITX-PFC500W employs a single 40mm double ball bearing fan for ventilation, which is adequate for its output but may struggle in high-load scenarios, especially in compact cases where airflow can be limited.

In comparison, the CORSAIR RM850x features a larger 140mm fan that operates quietly while effectively cooling the unit. The low-noise operation is a significant advantage for users who require a quieter environment, such as gamers or content creators. The enhanced cooling capabilities of the CORSAIR make it the superior option for high-performance applications.

Price Comparison

The price difference between the two power supplies is substantial, with the Apevia ITX-PFC500W at $49.99 and the CORSAIR RM850x at $161.93. This makes the CORSAIR approximately 69% more expensive than the Apevia. While the Apevia offers a budget-friendly option for users with basic needs, the higher cost of the CORSAIR reflects its advanced features, greater efficiency, and better performance.

For those on a tight budget or building entry-level systems, the Apevia may be appealing. However, for users seeking longevity and performance, the investment in the CORSAIR RM850x could be justified, given its superior specifications and efficiency.

Which should you buy?

Choosing between the Apevia ITX-PFC500W and the CORSAIR RM850x ultimately depends on your specific needs and budget. If you are looking for an affordable, compact power supply for a small form factor build, the Apevia is a suitable choice at $49.99. However, for users seeking high efficiency, performance, and compatibility with modern components, the CORSAIR RM850x at $161.93 offers significant advantages that may justify the higher cost.