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be quiet! Pure Power 13 M 1000W Power Supply vs MONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe

Updated August 2026The be quiet! Pure Power 13 M 1000W Power Supply offers superior power output and efficiency, while the MONTECH Century II 850W is a more budget-friendly option with a solid warranty.

The be quiet! Pure Power 13 M 1000W Power Supply offers superior power output and efficiency, while the MONTECH Century II 850W is a more budget-friendly option with a solid warranty.

Why be quiet! Pure Power 13 M 1000W Power Supply is better

Power Output

1000W vs 850W

Efficiency

94.4% efficiency rating

Cooling Features

Fan turns off under low load

Why MONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe is better

Price

Lower cost at £80.04

Warranty

10-year warranty

Modular Design

Fully modular design for better cable management

Overall score

be quiet! Pure Power 13 M 1000W Power Supply
85
MONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe
75

Specifications

Specbe quiet! Pure Power 13 M 1000W Power SupplyMONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe
Brandbe quiet!Montech
ATX Version3.13.1
PCIe 5.1 ReadyYesYes
CoolingSilent operationNot specified
Power ExcursionYesNo

Dimension comparison

be quiet! Pure Power 13 M 1000W Power SupplyMONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe

Pricing Comparison

When it comes to pricing, the be quiet! Pure Power 13 M 1000W Power Supply is priced at £99.99, while the MONTECH Century II 850W High-End ATX Gaming Power Supply is more affordable at £80.04. This represents a difference of £19.95, making the MONTECH option a more budget-friendly choice for gamers and PC builders looking to save money. However, the higher initial cost of the be quiet! model may be justified by its additional power capacity and features, which are particularly appealing for high-performance systems.

Power Output

The be quiet! Pure Power 13 M offers a robust power output of 1000W, exceeding the 850W provided by the MONTECH Century II. This additional 150W could be significant for users planning to run high-end graphics cards or multiple components that demand more power. The be quiet! model's ability to handle power excursions up to double its rated power ensures reliability during demanding tasks, making it an excellent choice for those who require maximum performance from their systems.

Efficiency Ratings

Both power supplies are certified with an 80 PLUS Gold rating, but the be quiet! Pure Power 13 M adds an impressive efficiency rating of up to 94.4%. This higher efficiency translates to lower power consumption and reduced electricity costs over time. While the MONTECH Century II does hold the same Gold certification, it lacks the specific efficiency claim that the be quiet! model boasts, which could appeal to environmentally conscious users or those seeking to reduce energy bills.

Modular Design

The MONTECH Century II features a fully modular design, allowing users to connect only the cables necessary for their build, which can greatly enhance cable management and airflow inside the case. While the be quiet! Pure Power 13 M also offers modularity, the specifics of its cable management capabilities are not highlighted as strongly. This could be a deciding factor for those who prioritise a clean and efficient build, as the MONTECH's design may simplify installation and maintenance.

Compatibility with New Technology

The be quiet! Pure Power 13 M is an ATX 3.1 PSU, which means it is designed with the latest technology in mind. It includes native integration of the 12V-2x6 connector, making it ready for next-generation PCIe 5.1 graphics cards. This compatibility ensures that users are prepared for future upgrades, which is a significant advantage for those looking to invest in high-performance components. The MONTECH Century II also claims to be PCIe 5.1 ready, but the specifics of its compatibility are less detailed, potentially leaving some users unsure about its long-term viability.

Cooling and Noise Levels

The be quiet! Pure Power 13 M is designed for quiet operation, featuring a fan that turns off completely under low load conditions. This allows for virtually silent performance during less demanding tasks, which is a notable advantage for users who prioritise a quiet computing environment. On the other hand, the MONTECH Century II does not mention specific cooling features or noise levels, which may be a drawback for those sensitive to sound during operation. The commitment to silence in the be quiet! model could be a deciding factor for quieter builds.

Warranty and Reliability

The MONTECH Century II comes with a 10-year warranty, which is a strong testament to the manufacturer's confidence in its product's reliability and longevity. In contrast, the warranty details for the be quiet! Pure Power 13 M are not specified, which may raise questions for potential buyers about its long-term durability. A longer warranty period can provide peace of mind, especially for gamers and builders investing significant resources into their systems.

Which should you buy?

In conclusion, the choice between the be quiet! Pure Power 13 M 1000W Power Supply and the MONTECH Century II 850W High-End ATX Gaming Power Supply largely depends on individual needs and budget considerations. If maximum power output, efficiency, and quiet operation are your priorities, the be quiet! model is worth the higher price tag. However, if you are looking for a more affordable option with a fully modular design and a solid warranty, the MONTECH Century II presents a compelling case. Ultimately, both power supplies cater to different segments of the market and can serve their intended purposes effectively.

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be quiet! Pure Power 13 M 1000W Power Supply vs MONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe | versusfinder