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be quiet! Dark Power 14 1200W, ATX 3.1, 80 Plus® vs Lian Li SP750 V2 Gold

Updated August 2026 — be quiet! Dark Power 14 1200W, ATX 3.1, 80 Plus® wins on efficiency and cooling, Lian Li SP750 V2 Gold wins on warranty.

The be quiet! Dark Power 14 1200W excels in power output and efficiency, making it ideal for high-performance systems, while the Lian Li SP750 V2 Gold offers solid performance at a budget-friendly price.

Why be quiet! Dark Power 14 1200W, ATX 3.1, 80 Plus® is better

Power Output

Dark Power 14 has 1200W vs Lian Li's 750W

Efficiency

Dark Power 14 is 80 PLUS Titanium vs Gold for Lian Li

Cooling Options

Dark Power 14 features dual-mode cooling

Why Lian Li SP750 V2 Gold is better

Price

Lian Li is significantly cheaper at $124.99

Warranty

Lian Li offers a 10-year warranty

Size

Lian Li is SFX form factor, suitable for compact builds

Overall score

be quiet! Dark Power 14 1200W, ATX 3.1, 80 Plus®
92
Lian Li SP750 V2 Gold
75

Specifications

Specbe quiet! Dark Power 14 1200W, ATX 3.1, 80 Plus®Lian Li SP750 V2 Gold
Brandbe quiet!Lian Li
ModelDark Power 14SP750 V2 Gold
Efficiency Rating80 PLUS Titanium80 PLUS Gold
Cooling TypeActive/Semi-PassiveFDB Fan
ModularityFully ModularFully Modular

Dimension comparison

be quiet! Dark Power 14 1200W, ATX 3.1, 80 Plus®Lian Li SP750 V2 Gold

Price Comparison

The be quiet! Dark Power 14 1200W is priced at $289.90, while the Lian Li SP750 V2 Gold 750 Watt is significantly cheaper at $124.99, making it about 57% less expensive. This stark difference plays a crucial role for budget-conscious consumers. The higher price of the Dark Power 14 reflects its premium features and high wattage, suitable for demanding systems and overclocking. In contrast, the Lian Li SP750 is more suited for mid-range builds, offering solid performance at a lower entry point. If budget is a primary concern, the Lian Li provides a compelling option without sacrificing essential functionality.

Power Output

When looking at power output, the Dark Power 14 1200W comes out on top with a maximum capacity of 1200 watts, catering to high-performance setups that may require extensive power, such as multi-GPU configurations. In comparison, the Lian Li SP750 V2 Gold offers 750 watts, which is adequate for most mainstream gaming rigs and workstations but may not suffice for the most demanding setups. This significant difference in wattage can influence your choice depending on your system's needs; for users planning on overclocking or using multiple graphics cards, the Dark Power 14 is the better fit.

Efficiency Ratings

The efficiency ratings of these power supplies reflect their operational effectiveness. The Dark Power 14 boasts an impressive 80 PLUS Titanium certification, achieving up to 95.42% efficiency. This high rating signifies reduced energy consumption and lower heat output, leading to quieter operation. Conversely, the Lian Li SP750 V2 Gold holds an 80 PLUS Gold certification, which, while respectable, does not match the efficiency of the Dark Power 14. Users seeking the utmost efficiency and performance may find the Dark Power 14's superior rating more appealing, especially for energy-conscious setups.

Cooling Mechanisms

Cooling is a vital aspect of power supply performance, and both units employ different approaches. The Dark Power 14 features a dual-mode cooling system that allows users to switch between active and semi-passive cooling modes. This adaptability ensures that the unit maintains optimal temperatures under varying loads, reducing noise during low load conditions. The Lian Li SP750 V2 Gold utilizes a 92mm fluid dynamic bearing fan, which is designed for low noise and efficient thermal performance. While both systems offer effective cooling solutions, the flexibility of the Dark Power 14 may be particularly valuable for overclockers or those with high-performance setups.

Cable Management

In terms of cable management, both units are fully modular, allowing users to connect only the cables necessary for their builds. This feature not only simplifies installation but also enhances airflow within the case. The Dark Power 14 includes native 12V-2x6 connectors specifically designed for next-generation PCIe 5.1 graphics cards, making it future-proof for upcoming hardware. The Lian Li SP750 V2 Gold similarly features a native 12V-2x6 cable, providing clarity and reliability for high-performance graphics cards. While both offer excellent cable management options, the Dark Power 14's emphasis on next-gen compatibility may cater more to enthusiasts planning future upgrades.

Warranty and Reliability

Warranty offerings can be indicative of a brand's confidence in their product. The Dark Power 14 does not specify a warranty period in the provided data, while the Lian Li SP750 V2 Gold comes with an impressive 10-year warranty. This long warranty period not only reflects the manufacturer's commitment to quality but also provides consumers with peace of mind regarding longevity and reliability. For users concerned about durability and potential long-term use, the Lian Li's warranty could be a significant factor in the purchasing decision.

Performance Under Load

Both power supplies are designed to handle their respective power outputs efficiently. The Dark Power 14's higher wattage allows it to perform exceptionally well under load, making it ideal for overclocking enthusiasts or users running resource-intensive applications. Its ability to switch between multi-rail and single-rail configurations provides added flexibility for performance tuning. On the other hand, while the Lian Li SP750 V2 Gold is designed to support high-performance components, its lower wattage may limit its performance under extreme conditions. Users intending to push their systems to the limit may find the Dark Power 14 to be the more capable choice.

Which should you buy?

Choosing between the be quiet! Dark Power 14 1200W and the Lian Li SP750 V2 Gold 750 Watt ultimately depends on your specific needs and budget. If you require a high-capacity power supply with top-tier efficiency, advanced cooling options, and future-proofing capabilities, the Dark Power 14 is the way to go. However, if you're looking for a reliable, budget-friendly power supply that still delivers solid performance for mid-range systems, the Lian Li SP750 V2 Gold is a fantastic choice. Consider your system requirements, budget constraints, and future upgrade plans when making your decision.