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be quiet! Power Zone 2 850W ATX 3.1 PSU vs Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply

Updated August 2026The be quiet! Power Zone 2 850W is the better choice for energy efficiency and quiet operation, while the Lian Li SP850 V2 Gold excels in modularity and warranty protection.

The be quiet! Power Zone 2 850W is the better choice for energy efficiency and quiet operation, while the Lian Li SP850 V2 Gold excels in modularity and warranty protection.

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

Price

Power Zone 2 is cheaper by C$6.73

Efficiency

Power Zone 2 has 80 PLUS Platinum certification

Cooling

Power Zone 2 features a larger 140mm fan for quieter operation

Why Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply is better

Modularity

Lian Li SP850 V2 Gold is fully modular

Warranty

Lian Li offers a 10-year hardware protection

Standby Power

Lian Li has an upgraded 5VSB rail capacity

Overall score

be quiet! Power Zone 2 850W ATX 3.1 PSU
85
Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply
78

Specifications

Specbe quiet! Power Zone 2 850W ATX 3.1 PSULian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply
Power Rating850W850W
Certification80 PLUS PlatinumATX 3.1
Cooling TypeSemi-passiveLow-noise
ModularNoYes
Fan Type140mm92mm

Dimension comparison

be quiet! Power Zone 2 850W ATX 3.1 PSULian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply

Price Comparison

The be quiet! Power Zone 2 850W is priced at C$187.50, making it the more economical choice compared to the Lian Li SP850 V2 Gold, which retails for C$194.23. While the price difference is relatively small, with just C$6.73 separating the two, every dollar counts when building or upgrading a system. The lower price of the Power Zone 2 can be appealing for budget-conscious consumers looking to invest in a high-quality power supply without breaking the bank.

Power Efficiency

The be quiet! Power Zone 2 boasts an impressive 80 PLUS Platinum certification, achieving an energy efficiency rating of up to 94.1%. This level of efficiency translates into reduced power consumption and lower electricity bills, which is a substantial advantage for users looking to maximise their system's performance while keeping energy costs down. In comparison, the Lian Li SP850 V2 Gold is ATX 3.1 certified and designed to support the latest PCIe Gen 5.0 platform. However, it does not specify an equivalent efficiency rating, making the Power Zone 2 the clear leader in terms of energy efficiency.

Cooling Mechanisms

The Power Zone 2 features a large Pure Wings 3 140mm fan that provides semi-passive zero-RPM cooling. This design allows the fan to turn off completely under low loads, leading to quieter operation and reduced wear over time. In contrast, the Lian Li SP850 V2 Gold is equipped with a premium 92mm Fluid Dynamic Bearing fan. While the smaller fan still ensures efficient thermal performance, it may not offer the same level of quiet operation under low loads as the larger fan in the Power Zone 2. Therefore, for users prioritising silence, the Power Zone 2 may be the better option.

Modular Design

When it comes to cable management, the Lian Li SP850 V2 Gold shines with its fully modular design. This feature allows users to connect only the cables they need, reducing clutter and improving airflow within the case. On the other hand, the Power Zone 2 does not mention a modular design, which may lead to unnecessary cables being connected. For users who value a clean build and optimal airflow, the modularity of the Lian Li SP850 V2 Gold is a significant advantage.

Future-Proofing

The be quiet! Power Zone 2 is designed with future compatibility in mind, featuring native integration of the 12V-2x6 connector. This connector is essential for the latest PCIe 5.1 graphics cards and current-generation GPUs, ensuring that the power supply remains relevant as technology advances. The Lian Li SP850 V2 Gold also includes a native 12V-2x6 connector, but it places greater emphasis on its upgraded standby power capabilities, increasing the 5VSB rail's capacity from 2.5A to 3A. While both power supplies are adequately prepared for future hardware, the Power Zone 2’s direct focus on supporting next-gen GPUs can be an appealing factor for gamers and enthusiasts.

Reliability and Durability

Reliability is a cornerstone of both products, but they approach it differently. The Power Zone 2’s German design and engineering promise high quality and performance, which is backed by a strong reputation from the brand. Conversely, the Lian Li SP850 V2 Gold is built with high-quality Japanese electrolytic capacitors, which are known for their stability and reliability in power delivery. Additionally, the Lian Li comes with a 10-year hardware protection guarantee, which can provide peace of mind for consumers concerned about long-term use. This extended warranty may tip the scales for users prioritising durability.

Noise Levels

Noise levels are a critical consideration for many users, especially those building a system for gaming or media consumption. The Power Zone 2 offers an exceptional cooling solution with its large 140mm fan that operates quietly due to its semi-passive design. This allows for silent operation under low load conditions. The Lian Li SP850 V2 Gold, while designed for low noise with its 92mm FDB fan, may not achieve the same level of silence during low-load scenarios. Therefore, for those prioritising a quiet environment, the Power Zone 2 has an edge.

Which should you buy?

Ultimately, both the be quiet! Power Zone 2 850W and the Lian Li SP850 V2 Gold 850 Watt SFX power supplies offer compelling features for different types of users. If energy efficiency, quiet operation, and future-proofing are your top priorities, the Power Zone 2 shines with its 80 PLUS Platinum rating and large cooling fan, all at a slightly lower price of C$187.50. On the other hand, if modularity, reliability, and long-term warranty protection are more appealing, the Lian Li SP850 V2 Gold, priced at C$194.23, might be the better choice. Ultimately, your decision should reflect your specific needs and preferences for your build.

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be quiet! Power Zone 2 850W ATX 3.1 PSU vs Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply | versusfinder