be quiet! Pure Power 13 M 1000W Power Supply vs JUSTOP Black 750W PSU
Updated August 2026 — The be quiet! Pure Power 13 M 1000W Power Supply is the superior choice for high-performance needs, while the JUSTOP Black 750W PSU is more budget-friendly for basic setups.
The be quiet! Pure Power 13 M 1000W Power Supply is the superior choice for high-performance needs, while the JUSTOP Black 750W PSU is more budget-friendly for basic setups.
Why be quiet! Pure Power 13 M 1000W Power Supply is better
Power Capacity
1000W vs 750W for demanding systems
Efficiency
80 PLUS Gold certification vs no certification
Modularity
Modular design for better cable management
Why JUSTOP Black 750W PSU is better
Price
£32.95 vs £99.99
Basic Features
Adequate for less demanding setups
Safety Certifications
Multiple safety certifications included
Overall score
Specifications
| Spec | be quiet! Pure Power 13 M 1000W Power Supply | JUSTOP Black 750W PSU |
|---|---|---|
| Wattage | 1000W | 750W |
| Certification | 80 PLUS Gold | None |
| Cooling Fan | Smart fan | 120mm fan |
| Modular | Yes | No |
| Safety Features | Advanced | Basic |
Dimension comparison
Power and Efficiency
When it comes to power supply units, the amount of wattage and efficiency are crucial factors. The be quiet! Pure Power 13 M 1000W Power Supply offers a robust 1000W of continuous power, ensuring it can handle demanding systems, while also boasting an 80 PLUS Gold certification with an exceptional efficiency rating of up to 94.4%. In contrast, the JUSTOP Black 750W PSU provides a lower output of 750W, which may suffice for less demanding setups but lacks the efficiency and power capacity of its competitor. The significant difference in wattage means that for high-performance gaming or media creation PCs, the be quiet! model is the clear winner.
Cooling and Noise Levels
Cooling and noise levels can greatly affect the user experience in a PC setup. The be quiet! Pure Power 13 M features an intelligent fan that operates silently under low loads, turning off completely until needed. This design contributes to a quieter overall system, making it an excellent choice for users who prioritise a serene computing environment. On the other hand, the JUSTOP Black PSU includes a 120mm cooling fan, but it does not highlight any features aimed at noise reduction. Therefore, if a quiet operation is a priority, the be quiet! model stands out due to its advanced cooling design.
Design and Modularity
The design and modularity of a power supply unit can significantly impact cable management and airflow within a PC case. The be quiet! Pure Power 13 M is equipped with modularity, allowing users to exclude unnecessary cables, which simplifies management and enhances airflow. This results in a cleaner build and potentially lower internal temperatures. Conversely, the JUSTOP Black PSU does not mention modular features, which could lead to a cluttered system with more cables than necessary. For those who value aesthetics and organisation in their builds, the be quiet! model offers a more appealing design.
Safety Features
Safety is paramount when it comes to power supply units. The be quiet! Pure Power 13 M is designed with robust safety measures, ensuring reliable operation even during power excursions, which can be crucial for high-demand components. It provides excellent voltage regulation, contributing to system stability. The JUSTOP Black PSU also includes multiple safety protections such as over voltage protection, short circuit protection, and thermal overload cut-off protection. While both power supplies offer essential safety features, the be quiet! model's comprehensive voltage regulation gives it an edge in ensuring consistent performance under varying loads.
Compatibility with Modern Hardware
Compatibility with current and future hardware is an essential consideration for any power supply. The be quiet! Pure Power 13 M is an ATX 3.1 PSU and comes with native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, alongside four PCIe 6+2-pin connectors. This ensures that it can accommodate both current and future GPUs, making it a versatile choice for gamers and professionals. In comparison, the JUSTOP Black 750W PSU, while providing essential connectors, does not mention support for the latest PCIe standards. For users planning to invest in future-proofing their systems, the be quiet! model is the superior option.
Price and Value
Price is always a consideration in any purchase decision. The be quiet! Pure Power 13 M is priced at £99.99, reflecting its high capacity and premium features. The JUSTOP Black 750W PSU, on the other hand, is significantly cheaper at £32.95. While the lower price may appeal to budget-conscious consumers, it’s essential to consider the value offered. The higher price of the be quiet! model corresponds to its superior power capacity, efficiency, and features tailored for performance. Thus, while the JUSTOP PSU is more affordable, the be quiet! model offers better long-term value for those seeking performance and reliability.
User Experience and Brand Reputation
User experience and brand reputation play a significant role in purchasing decisions. The be quiet! brand is well-known for its emphasis on low noise and high-quality components, making it a popular choice among enthusiasts and professionals alike. Users of the Pure Power 13 M often report satisfaction with its performance and quiet operation, which enhances the overall computing experience. In contrast, the JUSTOP brand may not have the same level of recognition or user feedback in the high-performance segment. Therefore, for those who value a proven track record and user satisfaction, the be quiet! model is more likely to meet expectations.
Which should you buy?
In conclusion, the choice between the be quiet! Pure Power 13 M 1000W Power Supply and the JUSTOP Black 750W PSU boils down to power needs, budget, and intended usage. If you require a high-capacity, efficient, and quiet power supply that supports modern hardware, the be quiet! model is the clear winner at £99.99. However, if you are on a tight budget and need a basic PSU for a less demanding setup, the JUSTOP Black PSU at £32.95 could be sufficient. Ultimately, for those looking to invest in a reliable and future-proof power supply, the be quiet! Pure Power 13 M is the recommended choice.
versusfinder.com is a participant in the Amazon Services LLC Associates Programme and the Amazon EU Associates Programme. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

