ESGAMING 650W Non Modular Power Supply with Low-Noise 120mm Fan ATX PSU vs be quiet! Power Zone 2 850W ATX 3.1 PSU
Updated August 2026 — The be quiet! Power Zone 2 850W is the superior choice for high-performance needs, while the ESGAMING 650W is a budget-friendly option for standard setups.
The be quiet! Power Zone 2 850W is the superior choice for high-performance needs, while the ESGAMING 650W is a budget-friendly option for standard setups.
Why ESGAMING 650W Non Modular Power Supply with Low-Noise 120mm Fan ATX PSU is better
Price
Lower cost at C$55.99
Basic Use
Sufficient for standard builds
Size
Compact dimensions for smaller cases
Why be quiet! Power Zone 2 850W ATX 3.1 PSU is better
Power Output
850W vs 650W for demanding systems
Efficiency
80 PLUS Platinum certification
Cooling
Semi-passive zero-RPM cooling technology
Overall score
Specifications
| Spec | ESGAMING 650W Non Modular Power Supply with Low-Noise 120mm Fan ATX PSU | be quiet! Power Zone 2 850W ATX 3.1 PSU |
|---|---|---|
| Brand | ESGAMING | be quiet! |
| Modularity | Non-Modular | Fully Modular |
| Cooling Type | Standard Fan | Zero-RPM Fan |
| Warranty | Not Specified | Extended |
| Compatibility | Standard ATX | ATX 3.1 |
Dimension comparison
Price Comparison
When comparing the ESGAMING 650W Non Modular Power Supply and the be quiet! Power Zone 2 850W ATX 3.1 PSU, a significant difference in price is evident. The ESGAMING model is priced at C$55.99, making it a budget-friendly option for users who need reliable power without breaking the bank. In contrast, the be quiet! Power Zone 2 comes with a heftier price tag of C$187.50. This higher cost reflects its advanced features and higher wattage, appealing to those who require more power and efficiency for demanding systems. The price difference of C$131.51 may influence buyers based on their specific power needs and budget constraints.
Power Output
The power output is a crucial factor when selecting a power supply, and in this aspect, the be quiet! Power Zone 2 significantly outshines the ESGAMING model. With an output of 850W, the Power Zone 2 is designed to support high-performance components, making it suitable for gaming rigs and workstations that demand more energy. On the other hand, the ESGAMING provides a more modest 650W, which may suffice for standard builds but could limit performance in more intensive scenarios. This 200W difference in output capacity can be decisive for users planning to upgrade their systems in the future or run multiple high-demand components.
Efficiency Rating
Efficiency ratings play a vital role in determining the operational cost and environmental impact of a power supply. The be quiet! Power Zone 2 holds an impressive 80 PLUS Platinum certification, indicating an energy efficiency rating of up to 94.1%. This high efficiency translates to lower power consumption and reduced heat generation, ensuring a quieter operation. Conversely, the ESGAMING model does not specify an efficiency rating, which raises concerns about its operational costs and thermal performance. Users looking for long-term savings on electricity bills and a cooler system will find the be quiet! Power Zone 2 a more attractive option.
Cooling Solutions
In terms of cooling capabilities, the be quiet! Power Zone 2 again takes the lead with its semi-passive zero-RPM cooling technology. This feature allows the 140mm fan to remain off during low load conditions, reducing noise significantly and enhancing the overall user experience. The fan only activates when necessary, ensuring effective cooling without unnecessary sound. In contrast, the ESGAMING model features a 120mm fan designed for quiet operation, but it does not offer the same level of innovation in cooling efficiency. The be quiet! Power Zone 2’s design prioritizes silent performance, making it more suitable for users who value a quiet working environment.
Build Quality and Design
The build quality and design of a power supply can heavily influence its performance and longevity. The be quiet! Power Zone 2 boasts German engineering and design, emphasizing reliability and performance. Its robust construction is tailored to accommodate high-performance components, ensuring stability even under heavy loads. Meanwhile, the ESGAMING model features a non-modular design with pre-installed cables, which simplifies installation but may lead to cable management issues. While both power supplies are built to serve their purposes, the be quiet! Power Zone 2 is likely to appeal more to enthusiasts who prioritize quality and aesthetics.
Compatibility and Features
When it comes to compatibility, the be quiet! Power Zone 2 supports future technologies with its ATX 3.1 specification and native integration for next-generation PCIe 5.1 graphics cards. This feature ensures that it can accommodate current and upcoming hardware, making it a future-proof investment. Additionally, it includes multiple PCIe connectors to support various setups. The ESGAMING power supply, while compatible with standard ATX systems, offers limited future-proofing and fewer connectors, which could be a drawback for users planning to upgrade their components. The be quiet! Power Zone 2’s versatility in compatibility makes it a smarter choice for tech-savvy users.
Warranty and Support
Warranty and support can significantly affect a consumer's purchase decision. The be quiet! Power Zone 2, being a premium product, typically comes with a more extended warranty period, providing peace of mind to users investing in higher-end hardware. Although specific warranty details are not provided in the data, higher-end products generally offer better support. In contrast, the ESGAMING power supply does not specify warranty information, which could raise concerns for potential buyers. A solid warranty can indicate a manufacturer's confidence in their product, making the be quiet! Power Zone 2 a more reassuring option.
Which should you buy?
Choosing between the ESGAMING 650W Non Modular Power Supply and the be quiet! Power Zone 2 850W ATX 3.1 PSU ultimately depends on your specific needs and budget. If you're looking for an economical solution for a standard gaming or office setup, the ESGAMING model offers a low entry price and adequate power for basic systems. However, if you require high efficiency, superior cooling, and future-proof compatibility, the be quiet! Power Zone 2 justifies its higher price with features that cater to high-performance demands. For power users and gamers seeking reliability and longevity, the investment in the be quiet! Power Zone 2 is likely to pay off in the long run.
versusfinder.com is a participant in the Amazon.ca Associates Program. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

