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CORSAIR HX1500i vs be quiet! System Power 11 750W Power Supply

Updated August 2026The CORSAIR HX1500i is a premium choice for high-performance systems, while the be quiet! System Power 11 offers solid performance at a budget-friendly price.

The CORSAIR HX1500i is a premium choice for high-performance systems, while the be quiet! System Power 11 offers solid performance at a budget-friendly price.

Why CORSAIR HX1500i is better

Power Output

1500W capacity for demanding systems

Modularity

Fully modular design for cleaner builds

Software Features

Advanced control with CORSAIR iCUE software

Why be quiet! System Power 11 750W Power Supply is better

Price

More affordable at £64.99

Efficiency

80 PLUS Bronze certification for energy savings

Safety Features

Comprehensive safety protections listed

Overall score

CORSAIR HX1500i
85
be quiet! System Power 11 750W Power Supply
65

Specifications

SpecCORSAIR HX1500ibe quiet! System Power 11 750W Power Supply
BrandCorsairbe quiet!
Fan Size140mm120mm
CertificationN/A80 PLUS Bronze
SoftwareYesNo
ModularityFully ModularNon-specified

Dimension comparison

CORSAIR HX1500ibe quiet! System Power 11 750W Power Supply

Price Comparison

The CORSAIR HX1500i is significantly more expensive than the be quiet! System Power 11 750W Power Supply, priced at £229.00 compared to £64.99. This price difference of £164.01 is indicative of the performance and features offered by the higher-end model. While both power supplies are compliant with the ATX 3.1 standard, the CORSAIR model targets enthusiasts and high-performance systems, justifying its premium price. The be quiet! model, on the other hand, provides solid performance at a more accessible price point, making it appealing for budget-conscious consumers or those with less demanding setups.

Power Output

In terms of power output, the CORSAIR HX1500i boasts a substantial 1500W capacity, which is ideal for high-performance gaming rigs and workstations that require significant power. In contrast, the be quiet! System Power 11 offers a maximum output of 750W, which is suitable for most mid-range systems. This difference means that while the CORSAIR can handle more demanding hardware configurations, the be quiet! is often sufficient for general use and offers reliable performance for standard gaming or office setups.

Modularity

Modularity is another critical factor when comparing these two power supplies. The CORSAIR HX1500i features fully modular cabling, allowing users to connect only the cables they need for their system. This results in a cleaner and more organised build, which can improve airflow and aesthetics. The be quiet! System Power 11, however, does not specify full modularity, which may mean a more cluttered installation. For users who value neatness and ease of installation, the modularity of the CORSAIR is a standout feature.

Cooling Solutions

Cooling capabilities differ markedly between the two models. The CORSAIR HX1500i is equipped with a 140mm Fluid Dynamic Bearing (FDB) fan, which is designed for quiet performance and longevity. This feature is complemented by a Zero RPM Fan Mode, where the fan turns off entirely at low and medium loads, ensuring near-silent operation. Conversely, the be quiet! System Power 11 utilises a temperature-controlled 120mm fan that also prioritises low noise levels, but without the advanced features of the HX1500i. Users who require ultra-quiet operation may prefer the CORSAIR, while those who are less sensitive to noise might find the be quiet! model sufficient.

Software Features

The CORSAIR HX1500i offers powerful software integration through CORSAIR iCUE, allowing users to create custom fan curves, monitor power settings, and adjust overcurrent protection settings. This level of control can significantly enhance the user experience, particularly for gamers and PC enthusiasts who want to optimise their system's performance. The be quiet! System Power 11 does not mention any software capabilities, which may limit its appeal for users looking for advanced monitoring and customisation options. Therefore, the HX1500i stands out for tech-savvy users who appreciate additional control over their hardware.

Efficiency Ratings

Efficiency is an important aspect of power supplies, and the be quiet! System Power 11 boasts an 80 PLUS Bronze certification, indicating an efficiency rating of up to 90.0%. This means it operates with less wasted energy and generates less heat, making it a cost-effective choice in the long run. The CORSAIR HX1500i, while not specified in terms of efficiency rating in the provided data, is known for being highly efficient, especially in high-load scenarios. Although we can't directly compare the efficiency of both, the be quiet! model's certification provides assurance of its performance.

Safety Features

Both power supplies come with essential safety features, but the be quiet! System Power 11 explicitly mentions protections against overcurrents, over- and undervoltages, overtemperature, short circuits, and overloads. This comprehensive safety suite helps protect valuable components during operation. The CORSAIR HX1500i also features overcurrent protection, but without the detailed safety specifications mentioned for the be quiet! model. Users who prioritise safety and reliability may find the explicit protections of the be quiet! System Power 11 particularly reassuring.

Which should you buy?

If you're looking for a high-performance power supply with advanced features and have the budget for it, the CORSAIR HX1500i is an excellent choice. Its modular design, superior cooling capabilities, and software integration cater to enthusiasts and demanding users. However, if you're seeking a reliable power supply that offers good performance at a budget-friendly price, the be quiet! System Power 11 750W is a fantastic option. It combines efficiency, adequate power for most builds, and essential safety features, making it a solid choice for everyday users. Ultimately, your decision should hinge on your specific needs and budget.

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CORSAIR HX1500i vs be quiet! System Power 11 750W Power Supply | versusfinder