Corsair HX1000i Fully Modular Ultra-Low Noise ATX vs Lian Li SP750 V2 Gold
Updated August 2026 — Corsair HX1000i Fully Modular Ultra-Low Noise ATX leads on noise level and efficiency.
The Corsair HX1000i offers superior performance and features compared to the Lian Li SP750 V2, making it the better choice for high-demand users.
Why Corsair HX1000i Fully Modular Ultra-Low Noise ATX is better
Efficiency
Corsair has 80 Plus Platinum rating.
Fan Size
Corsair features a larger 140mm fan.
Software
Corsair supports iCUE software for customization.
Why Lian Li SP750 V2 Gold is better
Price
Lian Li is more budget-friendly.
Size
Lian Li is compact with SFX form factor.
Warranty
Both have a 10-year warranty, but Lian Li emphasizes reliability.
Overall score
Specifications
| Spec | Corsair HX1000i Fully Modular Ultra-Low Noise ATX | Lian Li SP750 V2 Gold |
|---|---|---|
| Power Rating | 1000W | 750W |
| Efficiency Rating | 80 Plus Platinum | 80 Plus Gold |
| Fan Type | 140mm FDB | 92mm FDB |
| Modular | Fully Modular | Fully Modular |
| ATX Standard | 3.1 | 3.1 |
Dimension comparison
Overview of the Corsair HX1000i and Lian Li SP750 V2
The Corsair HX1000i is a premium power supply priced at $234.99, while the Lian Li SP750 V2 offers a more budget-friendly option at $124.99. This roughly 47% price difference highlights their distinct market positions, catering to different user needs. The Corsair model targets high-performance builds with advanced features, while the Lian Li unit is designed for those seeking reliability without breaking the bank.
Performance and Efficiency
In terms of efficiency, the Corsair HX1000i boasts an impressive 80 Plus Platinum rating, ensuring optimal power utilization. This efficiency translates into lower energy bills and reduced heat output, making it suitable for high-demand systems. On the other hand, the Lian Li SP750 V2 carries an 80 Plus Gold rating, which, while still commendable, is a step down from Platinum. This means the Corsair can deliver slightly better performance, particularly under heavy loads, making it more favorable for gamers or professionals using demanding applications.
Fan Technology and Noise Levels
The fan technology in these power supplies also sets them apart. The Corsair HX1000i features a 140mm Fluid Dynamic Bearing fan that operates quietly, complemented by a Zero RPM mode that ensures the fan doesn't spin at low loads. This design prioritizes silent operation, appealing to users who value a quiet computing environment. Conversely, the Lian Li SP750 V2 is equipped with a 92mm FDB fan, which is efficient but typically produces more noise than larger fans under similar conditions. While both units are designed to minimize noise, the Corsair’s advanced features give it the edge in this area.
Modular Cabling
When it comes to modularity, both the Corsair HX1000i and the Lian Li SP750 V2 are fully modular, allowing users to connect only the cables they need. This feature not only simplifies installation but also promotes better airflow within the case. However, the Corsair's modular design is enhanced by its compatibility with CORSAIR iCUE software, which allows for greater customization and monitoring of power settings. This level of integration offers a more sophisticated user experience for those who want to fine-tune their setups.
Certifications and Compatibility
Both power supplies are certified under the latest ATX 3.1 standard, ensuring they can handle modern components, including PCIe Gen 5.0 or 5.1 graphics cards. The Corsair HX1000i’s compliance with PCIe 5.1 offers a slight advantage, as it may better accommodate future hardware developments. The Lian Li SP750 V2 also supports the latest standards, but its PCIe 5.0 compliance is a notch below, making it slightly less future-proof for users planning significant upgrades.
Warranty and Reliability
In terms of warranty, both power supplies offer a decade of protection, providing peace of mind for buyers. The Corsair HX1000i’s use of high-quality Japanese 105°C-rated electrolytic capacitors is indicative of its reliability and long lifespan, particularly appealing to enthusiasts who expect their components to last. The Lian Li SP750 V2 also emphasizes reliability, backed by its 10-year warranty, but lacks the detailed specifications regarding capacitor quality that the Corsair provides.
Target Audience
The target audience for these power supplies varies significantly. The Corsair HX1000i is tailored for gamers, content creators, and PC builders who demand high power efficiency and advanced features. Its price point reflects its premium positioning, catering to users willing to invest more for superior performance. In contrast, the Lian Li SP750 V2 is aimed at budget-conscious consumers seeking reliable performance for standard builds. Its lower price point makes it an attractive option for users who don’t require the highest efficiency or advanced features.
Which should you buy?
Choosing between the Corsair HX1000i and the Lian Li SP750 V2 ultimately depends on your specific needs and budget. If you require a high-performance power supply with advanced features and efficiency, the Corsair HX1000i is the clear choice, albeit at a higher price of $234.99. However, if you are looking for a reliable and cost-effective option for standard builds, the Lian Li SP750 V2 at $124.99 provides substantial value for its price. Consider your performance requirements, budget constraints, and future upgrade plans when making your decision.

