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CORSAIR RM850e Fully Modular Low-Noise ATX Power vs Lian Li SP750 V2 Gold

Updated July 2026 — CORSAIR RM850e Fully Modular Low-Noise ATX Power wins on power and length, Lian Li SP750 V2 Gold wins on price and warranty.

The CORSAIR RM850e offers a better price and solid performance, while the Lian Li SP750 V2 Gold excels in warranty and standby features.

Why CORSAIR RM850e Fully Modular Low-Noise ATX Power is better

Price

RM850e is $30 cheaper

Cooling

Larger 120mm fan for better airflow

Efficiency

Cybenetics Gold certification

Why Lian Li SP750 V2 Gold is better

Warranty

10-year warranty vs 7 years

Standby Power

Upgraded standby capabilities

Size

Compact SFX form factor

Overall score

CORSAIR RM850e Fully Modular Low-Noise ATX Power
85
Lian Li SP750 V2 Gold
78

Specifications

SpecCORSAIR RM850e Fully Modular Low-Noise ATX PowerLian Li SP750 V2 Gold
ModularFullyFully
ATX Standard3.13.1
PCIe Support5.15.0
Noise LevelLowLow
Capacitors105°CStandard

Dimension comparison

CORSAIR RM850e Fully Modular Low-Noise ATX PowerLian Li SP750 V2 Gold

Overview of the Power Supplies

When comparing the CORSAIR RM850e and the Lian Li SP750 V2 Gold, both power supplies offer fully modular designs and low-noise operation, but they cater to slightly different users and setups. The RM850e is priced at $94.99, while the SP750 V2 Gold costs $124.99, making the RM850e about 24% cheaper. Understanding their key features will help you determine which is the better choice for your PC build.

Build Quality and Design

Build quality is crucial for reliable power delivery. The CORSAIR RM850e features 105°C-rated capacitors, ensuring steady and dependable performance under load. This power supply is designed for modern builds, with a 140mm-long casing that fits nearly any case. On the other hand, the Lian Li SP750 V2 Gold boasts a 10-year warranty, indicating a strong commitment to longevity and durability. Its compact SFX form factor is specifically designed to fit smaller cases while still offering efficient cooling through a premium 92mm FDB fan. Both models prioritize high-quality components, but the RM850e's higher temperature rating may be more appealing for users pushing their systems to the limits.

Efficiency Ratings

Efficiency ratings are vital for power supplies, affecting both performance and energy consumption. The CORSAIR RM850e is certified with Cybenetics Gold efficiency, which is designed to minimize wasted energy while maintaining excellent power delivery. The Lian Li SP750 V2 Gold also carries a Gold efficiency rating, ensuring it operates efficiently. However, the Lian Li model features an upgraded standby power rail that increases its current capacity, which is beneficial for powering high-demand peripherals. Both models are efficient, but the Lian Li's upgraded standby capabilities might be more advantageous for users with power-hungry components.

Noise Levels

Noise levels are often a significant concern for PC builders seeking a quiet operation. The CORSAIR RM850e employs a 120mm rifle bearing fan that maintains low noise levels, even under heavy load conditions. Conversely, the Lian Li SP750 V2 Gold utilizes a 92mm FDB fan, which is designed for quiet thermal performance as well. While both models prioritize silent functionality, the larger fan in the RM850e may provide slightly better cooling efficiency with potentially lower noise output during intensive tasks.

Compatibility and Connectivity

In terms of compatibility, the CORSAIR RM850e complies with the ATX 3.1 and PCIe 5.1 standards, featuring a native 12V-2x6 connector that is essential for modern graphics cards. It also includes various PCIe 8-pin power connectors, making it versatile for different builds. The Lian Li SP750 V2 Gold also meets ATX 3.1 standards and includes a native 12V-2x6 cable, ensuring it can support today's powerful graphics cards. Both power supplies offer fully modular cabling, allowing users to connect only the necessary cables for their setups, which reduces clutter. Therefore, both products are highly compatible, but the RM850e's additional PCIe connectors may give it an edge in flexibility.

Warranty and Support

Warranty and support can greatly influence customer satisfaction. The CORSAIR RM850e comes with a seven-year warranty, which reflects the brand's confidence in its product durability. In contrast, the Lian Li SP750 V2 Gold offers an impressive 10-year warranty, which is a significant commitment to reliability and customer service. This longer warranty period may provide peace of mind for users, particularly for those investing in high-performance or critical systems. Thus, while both products have strong support guarantees, the Lian Li's decade-long warranty stands out.

Price Comparison

Price is always a decisive factor when selecting a power supply. The CORSAIR RM850e is currently priced at $94.99, making it a more budget-friendly option compared to the Lian Li SP750 V2 Gold, which retails for $124.99. This price difference of about $30 highlights the RM850e’s appeal for users looking to save without compromising on essential features. However, for those who prioritize the longer warranty and advanced standby capabilities of the Lian Li, the higher price may be justifiable.

Which should you buy?

Ultimately, the choice between the CORSAIR RM850e and the Lian Li SP750 V2 Gold depends on your specific needs and preferences. If you are looking for a cost-effective, reliable power supply with a robust build and quiet operation, the CORSAIR RM850e is an excellent choice, especially given its lower price and solid efficiency. However, if you prioritize longevity, warranty support, and advanced features like upgraded standby power, the Lian Li SP750 V2 Gold may be worth the extra investment. Both power supplies have their strengths, so consider your priorities when making a decision.