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be quiet! Pure Power 13 M 850W Power Supply vs be quiet! Power Zone 2 850W ATX 3.1 PSU

Updated August 2026The be quiet! Pure Power 13 M 850W Power Supply offers better efficiency and a lower price, making it a more attractive option for budget-conscious consumers. However, the Power Zone 2 excels in cooling performance and build quality.

The be quiet! Pure Power 13 M 850W Power Supply offers better efficiency and a lower price, making it a more attractive option for budget-conscious consumers. However, the Power Zone 2 excels in cooling performance and build quality.

Why be quiet! Pure Power 13 M 850W Power Supply is better

Price

C$173.21 vs C$187.50

Efficiency

80 PLUS Gold vs 80 PLUS Platinum

Additional Connectors

4 PCIe connectors vs 3

Why be quiet! Power Zone 2 850W ATX 3.1 PSU is better

Cooling

Larger Pure Wings 3 fan

Build Quality

Emphasis on German engineering

Post-Ventilation

Cooldown period for fan operation

Overall score

be quiet! Pure Power 13 M 850W Power Supply
85
be quiet! Power Zone 2 850W ATX 3.1 PSU
78

Specifications

Specbe quiet! Pure Power 13 M 850W Power Supplybe quiet! Power Zone 2 850W ATX 3.1 PSU
Brandbe quiet!be quiet!
Certification80 PLUS Gold80 PLUS Platinum
Cooling SystemSemi-PassiveSemi-Passive
Max Load850W850W
Connector Type12V-2x612V-2x6

Dimension comparison

be quiet! Pure Power 13 M 850W Power Supplybe quiet! Power Zone 2 850W ATX 3.1 PSU

Price Comparison

When it comes to pricing, the be quiet! Pure Power 13 M 850W Power Supply is more affordable at C$173.21, while the be quiet! Power Zone 2 850W ATX 3.1 PSU is priced at C$187.50. A difference of C$14.29 may seem minor, but it could influence your purchasing decision, especially for budget-conscious consumers. The lower price of the Pure Power 13 M makes it an attractive option for those looking to power their systems without breaking the bank, while the Power Zone 2 targets users willing to invest a little more for enhanced efficiency and features.

Efficiency Ratings

In terms of efficiency, the be quiet! Pure Power 13 M boasts an 80 PLUS Gold certification with an efficiency rating of up to 94.4%. On the other hand, the Power Zone 2 is slightly behind with an 80 PLUS Platinum certification and an efficiency rating of up to 94.1%. While both power supplies offer excellent efficiency, the Pure Power 13 M edges ahead by a marginal 0.3%. This small difference can lead to lower power consumption, which translates into reduced electricity bills and less heat generation, making it a suitable choice for users aiming for quieter and cooler systems.

Cooling Mechanisms

Both power supplies feature semi-passive zero-RPM cooling systems, but they differ in fan design. The Pure Power 13 M uses a reliable fan that turns off under low load conditions, ensuring silent operation. In contrast, the Power Zone 2 employs a larger Pure Wings 3 140mm fan that also operates silently at low loads but requires a short cooldown period of 2-5 minutes to avoid frequent starts and stops. While both systems offer excellent cooling, the Pure Power 13 M may be perceived as more efficient in terms of immediate silent performance, making it ideal for users who prioritize noise reduction in their setups.

Connector Compatibility

Connector compatibility is crucial for modern gaming and high-performance systems. The be quiet! Pure Power 13 M includes a native 12V-2x6 connector for next-generation PCIe 5.1 graphics cards along with four PCIe 6+2-pin connectors. Meanwhile, the Power Zone 2 also offers the same 12V-2x6 connector and three PCIe 6+2-pin connectors. Both power supplies are designed to support the latest graphics cards, making them future-proof. However, the additional PCIe connectors in the Pure Power 13 M provide slightly more versatility for users planning to run multiple GPUs or high-demand configurations.

Power Delivery

Both the Pure Power 13 M and Power Zone 2 provide 850W of continuous power with a single massive 12V rail. This design enables both power supplies to handle power excursions up to double their rated power, ensuring stable operation even under extreme load conditions. This capability is particularly beneficial for users with high-performance processors and graphics cards. Thus, from a power delivery perspective, both models are equally competent, making them suitable for demanding gaming and workstation applications.

Build Quality and Design

Both power supplies carry the hallmark of German engineering, promising high-quality performance and reliability. The Pure Power 13 M is recognized for its LLC topology, which provides excellent voltage regulation and efficiency. The Power Zone 2, on the other hand, highlights its Pure Wings 3 fan and emphasizes its unique design tailored for optimal cooling. While both units are built to last, the Pure Power 13 M’s focus on silent operation may appeal more to users looking for a quiet computing environment, while the Power Zone 2 might attract those prioritizing performance and cooling efficiency.

User Experience and Noise Levels

User experience is another critical factor to consider. The Pure Power 13 M’s fan operates silently under low loads, providing an exceptionally quiet experience for users who prefer a noise-free environment. In contrast, the Power Zone 2, while also designed for quiet operation, may introduce slight noise during the 2-5 minute cooldown period after high loads. For users who prioritize silence, the Pure Power 13 M would be the better option. However, for those who appreciate robust cooling performance and are less sensitive to minor noise levels, the Power Zone 2 remains a solid choice.

Which should you buy?

Choosing between the be quiet! Pure Power 13 M 850W Power Supply and the be quiet! Power Zone 2 850W ATX 3.1 PSU ultimately comes down to your specific needs and budget. If you’re looking for a more affordable option with slightly better efficiency, quieter operation, and additional PCIe connectors, the Pure Power 13 M is the way to go at C$173.21. However, if you’re willing to spend a bit more for a power supply that offers top-tier performance, excellent cooling with a larger fan, and a premium build quality, the Power Zone 2 at C$187.50 is an excellent choice. Both power supplies are fantastic, but your decision should reflect what aspects you value more in your computing setup.

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be quiet! Pure Power 13 M 850W Power Supply vs be quiet! Power Zone 2 850W ATX 3.1 PSU | versusfinder