vsversusfinder

be quiet! Pure Power 12 650W PSU | 80 Plus Gold | vs Cooler Master V850 SFX Gold 850W Fully Modular

Updated August 2026 — be quiet! Pure Power 12 650W PSU | 80 Plus Gold | wins on efficiency, Cooler Master V850 SFX Gold 850W Fully Modular wins on modularity and compatibility.

The be quiet! Pure Power 12 offers superior efficiency and quieter operation, while the Cooler Master V850 SFX Gold excels in compact design and modularity.

Why be quiet! Pure Power 12 650W PSU | 80 Plus Gold | is better

Price

be quiet! is significantly cheaper at $64.90

Efficiency

be quiet! has a higher efficiency rating of up to 92.7%

Noise

be quiet! is engineered for quieter operation

Why Cooler Master V850 SFX Gold 850W Fully Modular is better

Modularity

Cooler Master is fully modular for better cable management

Compact Design

Cooler Master is designed for small form factor builds

Durability

Cooler Master uses high-quality Japanese capacitors

Overall score

be quiet! Pure Power 12 650W PSU | 80 Plus Gold |
85
Cooler Master V850 SFX Gold 850W Fully Modular
88

Specifications

Specbe quiet! Pure Power 12 650W PSU | 80 Plus Gold |Cooler Master V850 SFX Gold 850W Fully Modular
Certification80 Plus Gold80 Plus Gold
ModularFlat ModularFully Modular
Connector Type12V-2x690° 12VHPWR
CoolingTemperature ControlledFluid Dynamic Bearing
CompatibilityATX 3.1, PCIe 5.1ATX 3.1, PCIe 5.1

Dimension comparison

be quiet! Pure Power 12 650W PSU | 80 Plus Gold |Cooler Master V850 SFX Gold 850W Fully Modular

Overview of be quiet! Pure Power 12 650W PSU and Cooler Master V850 SFX Gold 850W

The be quiet! Pure Power 12 650W PSU is priced at $64.90, while the Cooler Master V850 SFX Gold 850W is significantly more expensive at $153.25, making it about 135% pricier. This stark price difference highlights the varying positions of these power supplies in the market—one catering to budget-conscious users and the other aimed at high-performance setups. Each unit boasts features that appeal to different types of users, with the former focusing on quiet operation and efficiency, and the latter emphasizing compact design and modularity.

Efficiency and Performance

The be quiet! Pure Power 12 boasts an impressive 80 Plus Gold certification with an efficiency rating of up to 92.7%. This level of efficiency means lower power consumption and reduced heat output, which is ideal for users looking to build quiet systems. In comparison, the Cooler Master V850 SFX Gold also carries an 80 Plus Gold certification, achieving around 90% efficiency. While both power supplies are efficient, the slight edge in efficiency of the be quiet! model may appeal to those prioritizing energy savings.

Design and Build Quality

The be quiet! Pure Power 12 is designed with a focus on silent operation, featuring a temperature-controlled 120mm fan that minimizes noise while maintaining effective cooling. The unit is constructed to support modern components with native integration of the 12V-2x6 connector for PCIe 5.1 GPUs. On the other hand, the Cooler Master V850 SFX Gold has a compact SFX design, which is particularly beneficial for small form factor builds. Its 92mm Fluid Dynamic Bearing fan ensures reliable cooling, and the use of 100% Japanese capacitors enhances overall durability and performance. Users seeking a quieter experience might prefer the be quiet! model, while those needing a compact design should lean towards the Cooler Master.

Compatibility and Connectivity

The be quiet! Pure Power 12 features extensive compatibility with both current and next-generation GPUs, thanks to its combination of a 12V-2x6 connector and two PCIe 6+2-pin connectors. This versatility makes it a great choice for gamers and content creators. Conversely, the Cooler Master V850 SFX Gold is also designed to support the latest hardware, including an innovative 90° angled 12VHPWR PCIe 5.1 connector, enhancing electrical durability and safety. Both power supplies are compliant with ATX 3.1 standards, making them suitable for modern builds, but the be quiet! model's straightforward connectivity might appeal to users who prioritize ease of installation.

Modular Design

The Cooler Master V850 SFX Gold features a fully modular design, allowing users to connect only the cables they need, which reduces clutter and enhances airflow within the case. This is particularly advantageous in smaller builds where space is limited. The be quiet! Pure Power 12, while not fully modular, does offer flat modular cables that simplify installation and improve airflow. For users who value customization and a clean build aesthetic, the Cooler Master may be the better choice, but the be quiet! model still offers a respectable level of cable management.

Noise Levels

In terms of noise levels, the be quiet! Pure Power 12 is specifically engineered for quiet operation, thanks to its temperature-controlled fan and airflow-optimized design. This makes it an ideal choice for users who want a silent PC experience, particularly for gaming or media creation. The Cooler Master V850 SFX Gold, while also designed to operate quietly, does not emphasize silent operation to the same extent. Users prioritizing a silent experience may prefer the be quiet! model for its superior noise management features.

Warranty and Reliability

Both power supplies come with a robust 10-year warranty, which speaks volumes about the manufacturers' confidence in their products' reliability. The be quiet! Pure Power 12 is known for its solid performance and efficiency, while the Cooler Master V850 SFX Gold is renowned for its high-quality components and durability, thanks to its use of Japanese capacitors. The extended warranty period offered by both brands provides peace of mind for users investing in these power supplies.

Which should you buy?

Choosing between the be quiet! Pure Power 12 650W PSU and the Cooler Master V850 SFX Gold 850W largely depends on your specific needs and budget. The be quiet! model is about 57% cheaper at $64.90, making it an excellent choice for users seeking efficient, quiet power for modern systems. In contrast, the Cooler Master, with its compact SFX design and fully modular setup, is ideal for small form factor builds, albeit at a premium price of $153.25. If silent operation and energy efficiency are your priorities, the be quiet! Pure Power 12 is the way to go. However, if you need a powerful, flexible option for a compact build, the Cooler Master V850 SFX Gold is worth the investment.