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be quiet! Pure Power 13 M 850W Power Supply vs Redragon RGPS-850W 80+ Gold 850 Watt Power Supply w/Upgraded ATX 3.1 & PCIe 5.1

Updated August 2026The be quiet! Pure Power 13 M excels in silent operation and efficiency, while the Redragon RGPS-850W offers a lower price and RGB aesthetics. Choose based on your priorities.

The be quiet! Pure Power 13 M excels in silent operation and efficiency, while the Redragon RGPS-850W offers a lower price and RGB aesthetics. Choose based on your priorities.

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

Efficiency

be quiet! Pure Power 13 M has a higher efficiency rating of up to 94.4%.

Cooling

be quiet! features a semi-passive Zero-RPM cooling design for quieter operation.

Transient Loads

be quiet! handles massive transient loads more effectively.

Why Redragon RGPS-850W 80+ Gold 850 Watt Power Supply w/Upgraded ATX 3.1 & PCIe 5.1 is better

Price

Redragon RGPS-850W is C$18.22 cheaper.

Aesthetics

Redragon RGPS-850W offers customizable RGB lighting.

Capacitors

Redragon uses 100% Japanese capacitors for reliability.

Overall score

be quiet! Pure Power 13 M 850W Power Supply
85
Redragon RGPS-850W 80+ Gold 850 Watt Power Supply w/Upgraded ATX 3.1 & PCIe 5.1
78

Specifications

Specbe quiet! Pure Power 13 M 850W Power SupplyRedragon RGPS-850W 80+ Gold 850 Watt Power Supply w/Upgraded ATX 3.1 & PCIe 5.1
Certification80 PLUS Gold80 PLUS Gold
Power Excursion200%200%
Fan ModeSemi-PassiveZero RPM
Connector Support4 PCIe 6+2-pinDual CPU P8 (4+4)
Form FactorATX 3.1ATX 3.1

Dimension comparison

be quiet! Pure Power 13 M 850W Power SupplyRedragon RGPS-850W 80+ Gold 850 Watt Power Supply w/Upgraded ATX 3.1 & PCIe 5.1

Pricing Comparison

The be quiet! Pure Power 13 M 850W Power Supply is priced at C$173.21, while the Redragon RGPS-850W 80+ Gold 850 Watt Power Supply is more affordably priced at C$154.99. This puts the Redragon model C$18.22 lower than its competitor. For budget-conscious consumers, this price difference may be a significant factor when deciding which power supply to choose. Despite the lower price, the Redragon unit offers many features that challenge the higher-priced be quiet! model.

Efficiency Ratings

Both power supplies boast an 80 PLUS Gold certification, which signifies a high level of energy efficiency. The be quiet! Pure Power 13 M achieves an efficiency rating of up to 94.4%, while the Redragon RGPS-850W also adheres to the 80 PLUS Gold standard, although its maximum efficiency rating is not specified. This high efficiency translates into lower power consumption and reduced energy costs over time, making both products excellent choices for users looking to save on electricity bills while maintaining performance.

Cooling Features

The be quiet! Pure Power 13 M features a semi-passive Zero-RPM cooling design, where the fan remains off under low load conditions, ensuring a quieter operation. When the demand increases, the fan activates to maintain temperature. The Redragon RGPS-850W also incorporates a Zero RPM Mode fan, which only activates when temperatures reach 60°C. This means both units offer intelligent cooling solutions that enhance quiet performance, but the be quiet! model may offer slightly better silent operation under varying loads.

Build Quality and Reliability

The build quality of the Redragon RGPS-850W is reinforced by 100% Japanese capacitors, promising great reliability and durability. This aspect is essential for users who require maximum power stability, particularly in high-performance environments. The be quiet! Pure Power 13 M does not specify its capacitor types, which could be a consideration for users prioritizing reliability. Both units are designed to handle significant power loads, but the explicit mention of high-grade components in the Redragon unit may offer peace of mind for potential buyers.

Compatibility with New Technologies

The be quiet! Pure Power 13 M is ATX 3.1 compliant and features native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, making it a future-proof choice. It also supports up to four PCIe 6+2-pin connectors for current-generation GPUs. The Redragon RGPS-850W is also ATX 3.1 and PCIe 5.1 ready, with a notable capability of handling 200% total power excursion and 300% GPU power excursion, supporting high-performance NVIDIA graphics cards. Both power supplies are highly compatible with modern components, though the Redragon offers enhanced power excursion capabilities.

Aesthetics and Design

The aesthetic appeal of a power supply can play a crucial role in a build, especially for gamers and custom PC builders. The Redragon RGPS-850W shines with up to 9 RGB modes and 26 selectable colours, allowing for customisation that aligns with the user's overall case illumination style. In contrast, the be quiet! Pure Power 13 M focuses more on functionality and quiet operation, without any mention of RGB lighting. This could make the Redragon a more attractive option for users who value visual flair alongside performance.

Performance Under Load

The performance specifications indicate that the be quiet! Pure Power 13 M can handle massive transient loads and power excursions with ease, ensuring reliable operation even during high demand. It offers a continuous power output of 850W on a single 12V rail. The Redragon RGPS-850W also supports significant power excursions, with capabilities for 200% total and 300% GPU excursions, indicating that both units excel under pressure. However, the be quiet! model's design for handling transient loads may give it an edge in environments where power spikes are frequent.

Which should you buy?

Ultimately, the choice between the be quiet! Pure Power 13 M 850W Power Supply and the Redragon RGPS-850W 80+ Gold 850 Watt Power Supply will depend on your specific needs. The be quiet! model is ideal for users seeking silent operation and proven efficiency with a robust design for handling power loads. On the other hand, the Redragon unit offers a lower price point, enhanced aesthetics with RGB lighting, and impressive power excursion capabilities. If budget and aesthetics are your primary concerns, the Redragon RGPS-850W may be the better option, while those prioritising quiet performance and reliability may lean towards the be quiet! Pure Power 13 M.

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be quiet! Pure Power 13 M 850W Power Supply vs Redragon RGPS-850W 80+ Gold 850 Watt Power Supply w/Upgraded ATX 3.1 & PCIe 5.1 | versusfinder