CORSAIR RM Series vs Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply
Updated August 2026 — The CORSAIR RM Series offers a more affordable option with excellent noise management, while the Lian Li SP850 V2 Gold provides superior certification and a longer warranty. Choose based on your budget and performance needs.
The CORSAIR RM Series offers a more affordable option with excellent noise management, while the Lian Li SP850 V2 Gold provides superior certification and a longer warranty. Choose based on your budget and performance needs.
Why CORSAIR RM Series is better
Price
CORSAIR RM Series is cheaper by C$15.23
Fan Size
Larger 140mm fan for potentially better cooling
Noise Features
Zero RPM mode for silent operation at low loads
Why Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply is better
Certification
ATX 3.1 certified for modern builds
Warranty
10-year hardware protection guarantee
Standby Power
Upgraded 5VSB rail for better peripheral support
Overall score
Specifications
| Spec | CORSAIR RM Series | Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply |
|---|---|---|
| Brand | Corsair | Lian Li |
| Modular | Fully | Fully |
| Fan Type | Rifle Bearing | FDB |
| EPS Connectors | 3 | 2 |
| Power Output | 850W | 850W |
Dimension comparison
Price Comparison
When considering the price, the CORSAIR RM Series is more affordable at C$179.00 compared to the Lian Li SP850 V2 Gold, which costs C$194.23. The difference of C$15.23 may seem small, but it can sway budget-conscious buyers looking for a reliable power supply. Both power supplies offer premium features, yet the price variance highlights the value you get with each brand's offerings. The CORSAIR RM Series provides a slightly lower entry point, which may appeal to those who want good performance without breaking the bank.
Modular Design
Both the CORSAIR RM Series and Lian Li SP850 V2 Gold feature fully modular designs, allowing users to connect only the cables necessary for their systems. This design promotes improved cable management and airflow within the case, which is essential for optimal cooling. The CORSAIR RM Series boasts Type 4 cable compatibility, while the Lian Li SP850 V2 Gold emphasizes its reliable low-noise operation through its modular cabling. For users prioritizing a clean build, either option excels, but the choice may come down to brand preference or specific cable compatibility.
Fan Performance
The CORSAIR RM Series is equipped with a 140mm rifle bearing fan, designed to minimise noise even under full load. It offers a Zero RPM fan mode for silent operation at lower loads, making it an attractive option for users who value quiet performance. In contrast, the Lian Li SP850 V2 Gold features a 92mm FDB fan that is engineered for efficient and quiet thermal performance. While both power supplies focus on low noise, the larger fan size of the CORSAIR may provide better cooling capabilities, particularly under high demand.
Compatibility
Compatibility is crucial for modern builds, and both power supplies perform well in this category. The CORSAIR RM Series includes triple EPS12V connectors to ensure full compatibility with contemporary graphics cards and motherboards. Meanwhile, the Lian Li SP850 V2 Gold is ATX 3.1 certified, supporting the PCIe Gen 5.0 platform and resisting transient power spikes. This means that while both options are suitable for modern configurations, the Lian Li's certification may offer additional peace of mind for users building high-performance machines.
Electrical Performance
In terms of electrical reliability, both power supplies feature high-quality components that enhance performance. The CORSAIR RM Series utilizes industrial-grade, 105°C-rated capacitors for solid electrical performance and reliability. On the other hand, the Lian Li SP850 V2 Gold also boasts high-quality Japanese electrolytic capacitors, ensuring stable and reliable power delivery. Additionally, the Lian Li's upgraded 5VSB rail increases its current capacity from 2.5A to 3A, allowing it to better support modern USB-powered peripherals. This upgrade can be particularly beneficial for users with multiple devices that require standby power.
Noise Levels
Noise levels are an important aspect for many users, especially those who prefer a quieter computing environment. The CORSAIR RM Series promotes near-silent operation through its Zero RPM fan mode and noise-optimised fan curve. This feature allows the fan to remain off during low to medium loads, ensuring a quieter experience. The Lian Li SP850 V2 Gold’s premium 92mm FDB fan also aims for quiet operation, but it does not specifically mention a zero-RPM mode. Users seeking the utmost silence may find the CORSAIR RM Series more appealing, thanks to its dedicated features focusing on minimising noise.
Build Quality and Longevity
Both power supplies are designed with longevity in mind. The CORSAIR RM Series is built with industrial-grade components, which contribute to its reliability over time. The Lian Li SP850 V2 Gold, however, takes it a step further by offering a 10-year hardware protection guarantee, a significant commitment to quality and durability. This extended protection may attract buyers looking for a long-term investment in their power supply. When it comes to build quality, both brands are reputable, but Lian Li's warranty could provide additional assurance for potential buyers.
Which should you buy?
Ultimately, the choice between the CORSAIR RM Series and the Lian Li SP850 V2 Gold comes down to priorities and specific needs. The CORSAIR RM Series stands out for its lower price and features aimed at quiet operation, making it a solid choice for budget-conscious users who want reliable performance. Conversely, the Lian Li SP850 V2 Gold offers superior certification for modern builds, an upgraded standby power rail, and a longer warranty period, appealing to those who demand the latest technology and enhanced reliability. Your decision should reflect your budget, performance needs, and desired features in a power supply.
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