Arcity 5V 12V 24V Output Switching Power Supply vs be quiet! Pure Power 12 650W PSU | 80 Plus Gold |
Updated August 2026 — be quiet! Pure Power 12 650W PSU | 80 Plus Gold | leads on efficiency and cooling.
The Arcity power supply is a budget-friendly option for smaller projects, while the be quiet! model excels in efficiency and performance for high-demand systems.
Why Arcity 5V 12V 24V Output Switching Power Supply is better
Price
Arcity is significantly cheaper at $21.98.
Size
Arcity is more compact at 160mm x 98mm x 39mm.
Versatility
Arcity offers adjustable output voltages for various applications.
Why be quiet! Pure Power 12 650W PSU | 80 Plus Gold | is better
Efficiency
be quiet! has an 80 PLUS Gold certification with up to 92.7% efficiency.
Cooling
be quiet! features a temperature-controlled 120mm fan for silent operation.
Power Output
be quiet! provides a continuous output of 650W on a single 12V rail.
Overall score
Specifications
| Spec | Arcity 5V 12V 24V Output Switching Power Supply | be quiet! Pure Power 12 650W PSU | 80 Plus Gold | |
|---|---|---|
| Price | $21.98 | $64.90 |
| Voltage | 5V/12V/24V | 12V |
| Fan | None | 120mm |
| Certification | N/A | 80 PLUS Gold |
| Protection | Multiple protections | Robust protections |
Dimension comparison
Overview of Arcity and be quiet! Power Supplies
The Arcity 5V 12V 24V Output Switching Power Supply Unit is priced at $21.98, offering versatile outputs for various applications. In contrast, the be quiet! Pure Power 12 650W PSU comes in at $64.90, providing a robust solution for high-performance systems. While the Arcity power supply is tailored for low-power devices and DIY projects, the be quiet! model targets gamers and media creators needing substantial power and efficiency.
Design and Build Quality
The Arcity power supply features a compact design with dimensions of 160mm x 98mm x 39mm, making it suitable for tight spaces. It is lightweight at 350g, which enhances its portability for DIY projects. The be quiet! Pure Power 12, on the other hand, is designed for high performance, with a weight indicative of its durable build. Its sleek black casing and fully sleeved cables not only improve aesthetics but also enhance airflow efficiency. This focus on design is particularly beneficial for users who prioritize a clean and organized setup.
Output Versatility
The Arcity power supply offers three adjustable output voltages: 5V, 12V, and 24V, with a maximum output of 8A for 5V and 12V, and 3A for 24V. This versatility allows it to cater to a range of devices, from LED strips to arcade machines. In contrast, the be quiet! Pure Power 12 delivers a continuous output of 650W on a single 12V rail, making it particularly suitable for modern gaming PCs and high-end workstations. This difference illustrates how the Arcity is better for hobbyists and smaller projects, while the be quiet! provides the power needed for demanding applications.
Efficiency Ratings
The be quiet! Pure Power 12 boasts an 80 PLUS Gold certification, achieving an efficiency of up to 92.7%. This high efficiency translates into lower electricity bills and less heat output, which is critical for maintaining system stability during intense gaming sessions. Conversely, the Arcity power supply does not specify an efficiency rating but emphasizes low ripple noise and low power consumption. For users concerned about operational costs and environmental impact, the be quiet! unit offers clear advantages in terms of efficiency.
Cooling Performance
Cooling performance is crucial in power supplies, especially for high-demand applications. The be quiet! model features a temperature-controlled 120mm fan designed to provide effective cooling while maintaining near-silent operation. This is particularly beneficial for users who seek a quiet environment, such as in home theaters or gaming setups. The Arcity power supply, while efficient in heat dissipation due to its housing design, lacks a dedicated fan system, which may affect its performance in more demanding scenarios. Users requiring consistent performance under load may find the be quiet! superior in this regard.
Protection Features
Both power supplies include multiple protection features, but they cater to different user needs. The Arcity offers a comprehensive suite, including Overvoltage Protection, Overcurrent Protection, Short-Circuit Protection, and more. These features make it a safe choice for DIY projects where electrical mishaps can occur. In contrast, the be quiet! Pure Power 12 also provides robust protection, particularly designed for high-performance applications, ensuring reliable operation even under high load conditions. Users in critical environments may appreciate the added safety net provided by the be quiet! power supply.
Price Comparison
The Arcity power supply is priced at $21.98, which is about 66% lower than the be quiet! Pure Power 12, priced at $64.90. This significant price difference makes the Arcity an attractive option for budget-conscious consumers or those who need a power supply for smaller projects. However, the higher cost of the be quiet! unit reflects its advanced features and capabilities, which may justify the investment for users looking for reliability and efficiency in demanding applications.
Which should you buy?
Choosing between the Arcity 5V 12V 24V Output Switching Power Supply Unit and the be quiet! Pure Power 12 650W PSU ultimately depends on your specific needs. If you require a versatile, budget-friendly power supply for smaller devices or DIY projects, the Arcity is the clear choice at $21.98. However, for users with high-performance systems needing reliable power and quiet operation, the be quiet! model at $64.90 offers substantial advantages in efficiency, output, and cooling. Consider your application and budget to make the best decision.

