be quiet! Pure Power 13 M 1000W Power Supply, 80 vs MSI MPG A850G PCIE5, Fully Modular Compact Gaming
Updated August 2026 — be quiet! Pure Power 13 M 1000W Power Supply, 80 wins on cooling and efficiency, MSI MPG A850G PCIE5, Fully Modular Compact Gaming wins on warranty and modularity.
The be quiet! Pure Power 13 M offers superior efficiency and cooling features, while the MSI MPG A850G is a more budget-friendly option with a fully modular design.
Why be quiet! Pure Power 13 M 1000W Power Supply, 80 is better
Efficiency
Higher efficiency rating of up to 94.4%
Cooling
Semi-passive cooling for quieter operation
Future-proofing
Native 12V-2x6 connector for PCIe 5.1 GPUs
Why MSI MPG A850G PCIE5, Fully Modular Compact Gaming is better
Price
Cheaper at $109.99 compared to $139.90
Warranty
10-year limited warranty for reliability
Modularity
Fully modular design for easier cable management
Overall score
Specifications
| Spec | be quiet! Pure Power 13 M 1000W Power Supply, 80 | MSI MPG A850G PCIE5, Fully Modular Compact Gaming |
|---|---|---|
| Certification | 80 PLUS Gold | 80 PLUS Gold |
| Cooling Type | Semi-passive | Standard |
| Connector Type | 12V-2x6 | 12V-2x6 |
| Capacitors | Standard | 100% Japanese |
| Modular Design | Modular | Fully Modular |
Dimension comparison
Price Comparison
The MSI MPG A850G PCIE5 is about 21% cheaper than the be quiet! Pure Power 13 M, priced at $109.99 compared to $139.90. This price difference might appeal to budget-conscious consumers looking for an efficient power supply without breaking the bank. While the MSI option offers a solid feature set, the higher price of the be quiet! unit could be justified by its advanced specifications and overall performance capabilities. Consumers should consider their budget and the value each product brings before making a decision.
Efficiency Ratings
Both power supplies are certified with an 80 PLUS Gold rating, ensuring high operating efficiency. The be quiet! Pure Power 13 M boasts an efficiency rating of up to 94.4%, which translates to lower power consumption and reduced costs for users. This efficiency contributes to cooler and quieter operation, making it particularly suitable for quiet systems and gaming PCs. On the other hand, the MSI MPG A850G also features the same 80 PLUS Gold certification, ensuring reliable performance with a focus on efficiency. Ultimately, while both units are efficient, the be quiet! unit edges out with a higher efficiency rating.
Modular Design
The MSI MPG A850G features a fully modular design, allowing users to connect only the cables they need, thus reducing cable clutter and simplifying the overall build. This is particularly beneficial for those who prioritize a clean and organized PC setup. In contrast, the be quiet! Pure Power 13 M also has a modular cable system, but it does not explicitly state that it is fully modular. While both designs support efficient cable management, the fully modular design of the MSI power supply may provide an advantage for users who prioritize aesthetics and ease of installation.
Compatibility and Future-Proofing
The be quiet! Pure Power 13 M is designed to fulfill all ATX 3.1 specifications and includes native integration of the 12V-2x6 connector for next-generation PCIe 5.1 GPUs. This makes it a great choice for users looking to future-proof their systems with the latest technology. Meanwhile, the MSI MPG A850G is also ATX 3.1 and PCIe 5.1 ready, ensuring it can accommodate the latest graphics cards. Both power supplies are suitable for current and future builds, but the be quiet! unit’s specific mention of the 12V-2x6 connector may offer a slight edge in compatibility with cutting-edge components.
Cooling Features
The be quiet! Pure Power 13 M features a semi-passive cooling system, allowing the fan to turn off completely under low load conditions. This results in an exceptionally silent operation, making it ideal for quiet systems. The MSI MPG A850G emphasizes low-noise operation as well but does not specify a semi-passive mode. While both power supplies are designed for quiet performance, the semi-passive cooling of the be quiet! unit may provide an enhanced silent experience during light usage, appealing to users who prioritize noise levels in their builds.
Warranty and Reliability
The MSI MPG A850G comes with a 10-year limited warranty, which reflects the brand's confidence in the reliability and durability of its product. This extended warranty can provide peace of mind for users concerned about longevity and performance stability. The be quiet! Pure Power 13 M does not explicitly mention a warranty period, which can make it difficult for consumers to assess the long-term reliability of the unit. The longer warranty offered by MSI may be a significant factor for users looking for assurance in their power supply investment.
Brand Reputation
Both be quiet! and MSI are recognized brands within the power supply market, known for producing quality products. However, be quiet! has built a strong reputation for its focus on silent operation and efficient cooling, which is a key selling point for enthusiasts looking to build quiet systems. MSI, on the other hand, is well-known for its gaming hardware and performance-oriented products. The choice between these brands may boil down to personal preference and the specific features that each consumer values most in a power supply.
Which should you buy?
Deciding between the be quiet! Pure Power 13 M and the MSI MPG A850G ultimately depends on your specific needs and priorities. If you value efficiency, advanced cooling features, and are willing to pay a premium for a high-performance unit, the be quiet! Pure Power 13 M might be the better choice. However, if you are looking for a budget-friendly option with a fully modular design and an impressive warranty, the MSI MPG A850G could be the way to go. Consider your budget, performance expectations, and desired features to make the best decision for your build.

