be quiet! Power Zone 2 1000W ATX 3.1 PSU | 80 Plus vs Lian Li SP750 V2 Gold
Updated August 2026 — be quiet! Power Zone 2 1000W ATX 3.1 PSU | 80 Plus wins on cooling and efficiency, Lian Li SP750 V2 Gold wins on warranty and modularity.
The be quiet! Power Zone 2 excels in efficiency and cooling technology, while the Lian Li SP750 V2 offers a more budget-friendly option with solid performance.
Why be quiet! Power Zone 2 1000W ATX 3.1 PSU | 80 Plus is better
Efficiency
80 PLUS Platinum certification vs 80 PLUS Gold
Cooling
Larger fan with Zero RPM feature for quieter operation
Future-Proofing
Higher wattage supports more powerful components
Why Lian Li SP750 V2 Gold is better
Price
22% cheaper than Power Zone 2
Warranty
10-year warranty vs unspecified for Power Zone 2
Modularity
Fully modular design for easier cable management
Overall score
Specifications
| Spec | be quiet! Power Zone 2 1000W ATX 3.1 PSU | 80 Plus | Lian Li SP750 V2 Gold |
|---|---|---|
| Certification | 80 PLUS Platinum | 80 PLUS Gold |
| Cooling Type | Zero RPM | FDB Fan |
| Modularity | Semi-Modular | Fully Modular |
| Connector Type | 12V-2x6 | 12V-2x6 |
| Price | $159.90 | $124.99 |
Dimension comparison
Price Comparison
When considering price, the Lian Li SP750 V2 Gold is about 22% cheaper than the be quiet! Power Zone 2 1000W, retailing at $124.99 compared to $159.90. This difference may be significant for budget-conscious consumers or those seeking to maximize performance per dollar spent. The lower price of the Lian Li model does not compromise on efficiency or features, making it an appealing choice for gamers and PC builders alike.
Efficiency Ratings
The be quiet! Power Zone 2 1000W boasts a prestigious 80 PLUS Platinum certification, which indicates exceptional energy efficiency with a rating of up to 94.0%. In contrast, the Lian Li SP750 V2 Gold holds an 80 PLUS Gold certification. While both power supplies are efficient, the Platinum rating of the Power Zone 2 suggests it will consume less power overall, potentially saving users on electricity costs in the long run. This efficiency can also lead to quieter operation, particularly under varying load conditions.
Cooling Technology
Cooling performance is crucial for maintaining system stability and longevity. The be quiet! Power Zone 2 features a semi-passive Zero RPM cooling design, where its fan only activates under heavy load, resulting in silent operation during lighter tasks. The Power Zone utilizes a large Pure Wings 3 140mm fan for active cooling, enhancing its ability to manage heat effectively. On the other hand, the Lian Li SP750 V2 is equipped with a 92mm FDB fan, designed for low noise and efficient thermal performance. While both units prioritize quiet operation, the be quiet! model's larger fan may provide superior cooling efficiency.
Build Quality and Design
In terms of build quality, both power supplies feature a robust design suited for high-performance systems. The be quiet! Power Zone 2 is noted for its high-class technologies, including LLC topology for optimal voltage regulation. This design is aimed at ensuring reliability and efficiency in demanding scenarios. The Lian Li SP750 V2 also emphasizes reliability, featuring fully modular cabling for easy installation. The 10-year warranty provided with the Lian Li unit speaks to its durability and the manufacturer's confidence in the product. Ultimately, both power supplies exhibit high-quality craftsmanship, but the be quiet! model may edge out in terms of advanced technology.
Compatibility and Future-Proofing
When it comes to compatibility, the be quiet! Power Zone 2 1000W is an ATX 3.1 PSU that includes native integration of the 12V-2x6 connector, specifically designed for next-generation PCIe 5.1 graphics cards. This forward-thinking feature ensures that users can upgrade their systems without worrying about power supply limitations. The Lian Li SP750 V2 also supports PCIe 5.0 and includes a native 12V-2x6 cable, but its lower wattage could limit future upgrades for users looking to install high-performance components. For those prioritizing future-proofing their system, the higher wattage of the Power Zone 2 provides more versatility.
Noise Levels
Noise levels are critical for many users who desire a quiet computing environment. The be quiet! Power Zone 2 is designed to operate silently at low loads due to its Zero RPM cooling feature, minimizing fan noise during light tasks. The large fan also contributes to quieter operation under heavy loads. Conversely, the Lian Li SP750 V2 uses a premium 92mm FDB fan that offers low noise output but may not achieve the same level of silence during lighter workloads. For users sensitive to noise, the Power Zone 2 is likely the better option.
Warranty and Support
Warranty coverage can be an important factor when choosing a power supply. The Lian Li SP750 V2 comes with an impressive 10-year warranty, highlighting the manufacturer’s commitment to quality and reliability. This lengthy warranty period provides peace of mind for users investing in their systems. In contrast, the warranty details for the be quiet! Power Zone 2 are not specified, which could be a consideration for potential buyers. A longer warranty often indicates a higher confidence in the product's lifespan and performance.
Which should you buy?
Ultimately, the choice between the be quiet! Power Zone 2 1000W and the Lian Li SP750 V2 Gold hinges on individual needs and preferences. If you prioritize maximum efficiency, silent operation, and future-proofing capabilities, the be quiet! Power Zone 2 is the superior choice despite its higher price. However, if you are looking for a reliable, cost-effective solution that still offers solid performance, the Lian Li SP750 V2 Gold may be the way to go. Each power supply has its strengths, making them suitable for different types of users and build requirements.

