ASUS ROG Thor 1200W Platinum III PSU vs Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply
Updated August 2026 — The ASUS ROG Thor 1200W Platinum III PSU excels in performance and features, making it ideal for high-end users, while the Lian Li SP850 V2 Gold offers great value for compact builds.
The ASUS ROG Thor 1200W Platinum III PSU excels in performance and features, making it ideal for high-end users, while the Lian Li SP850 V2 Gold offers great value for compact builds.
Why ASUS ROG Thor 1200W Platinum III PSU is better
Power Output
ASUS provides 1200W compared to Lian Li's 850W.
Efficiency
ASUS uses GaN MOSFET for 30% more efficiency.
Cooling
ASUS features advanced cooling with ROG heatsinks.
Why Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply is better
Price
Lian Li is significantly cheaper at C$194.23.
Size
Lian Li is designed for compact SFX builds.
Noise Level
Lian Li has a quieter 92mm FDB fan.
Overall score
Specifications
| Spec | ASUS ROG Thor 1200W Platinum III PSU | Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply |
|---|---|---|
| Brand | Asus | Lian Li |
| Modularity | Fully Modular | Fully Modular |
| Certification | 80 PLUS Platinum | 80 PLUS Gold |
| Fan Size | N/A | 92mm |
| Display | OLED | None |
Dimension comparison
Overview of Power Supplies
When it comes to power supplies, the ASUS ROG Thor 1200W Platinum III PSU and the Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply offer distinct features tailored for different user needs. The ASUS unit is designed for high-performance gaming and demanding tasks, while the Lian Li focusses on compactness and efficiency. With the ASUS priced at C$552.99 and the Lian Li at C$194.23, both products cater to their respective markets with unique specifications.
Performance and Efficiency
The ASUS ROG Thor 1200W Platinum III boasts an impressive power efficiency rating, attributed to its GaN MOSFET technology, which delivers up to 30% more efficiency compared to standard MOSFETs. This results in a higher overall performance, particularly for gaming and intensive applications. In contrast, the Lian Li SP850 V2 Gold, while also efficient, operates within an 850W capacity and adheres to the ATX 3.1 certification, ensuring it meets modern power standards and resists transient spikes. Both power supplies are designed to deliver reliable performance, but the ASUS unit stands out for those needing greater power output.
Cooling Solutions
Cooling is crucial for maintaining optimal performance, and both power supplies incorporate advanced cooling features. The ASUS PSU is equipped with ROG heatsinks and a fully aluminum enclosure that synergizes for superior cooling. Its Turbo Mode allows for extended power excursions, making it suitable for high-demand scenarios. On the other hand, the Lian Li features a premium 92mm FDB fan that ensures quiet operation and effective thermal management. While both units offer solid cooling solutions, the ASUS may be more appealing for systems that push power limits, whereas the Lian Li excels in quieter setups.
Build Quality and Design
In terms of build quality, the ASUS ROG Thor 1200W Platinum III is constructed with premium components and a robust aluminum enclosure, ensuring durability and heat dissipation. Its magnetic OLED display offers real-time power monitoring and can be mounted in various orientations for convenience. Conversely, the Lian Li SP850 V2 Gold is designed to fit the SFX form factor, making it an excellent choice for compact builds. The fully modular cabling eliminates clutter, allowing users to connect only the necessary cables. Each unit emphasizes quality, but the ASUS offers a higher-end aesthetic and functionality.
Warranty and Reliability
Warranty and reliability are critical factors when choosing a power supply. The ASUS ROG Thor comes with a generous 10-year warranty, reflecting the manufacturer’s confidence in its longevity and performance. This extended warranty is particularly beneficial for gamers and professionals who rely on their systems for extended periods. Similarly, the Lian Li SP850 V2 Gold also features a 10-year hardware protection plan, assuring users of its reliability. Both brands provide strong warranty offerings, making them trustworthy choices for consumers.
Target Audience
The target audience for these power supplies differs significantly. The ASUS ROG Thor 1200W Platinum III is crafted for gamers and professionals requiring high wattage and efficiency for demanding applications. Its high price point reflects its advanced features, making it suitable for high-end gaming rigs or workstation setups. In contrast, the Lian Li SP850 V2 Gold is targeted at users building compact systems who still desire reliable power delivery but at a more accessible price of C$194.23. This makes it a suitable option for gamers and creators on a budget, or those with smaller form factor cases.
Price Considerations
Price is a crucial aspect when comparing the two power supplies. The ASUS ROG Thor is priced at C$552.99, positioning it as a premium option in the market. Its higher cost is justified by its advanced technology and features aimed at high-performance users. On the other hand, the Lian Li SP850 V2 Gold is significantly more affordable at C$194.23, making it an attractive option for budget-conscious consumers or those seeking value in a compact form factor. The price difference reflects the intended use cases and the performance capabilities of each model.
Which should you buy?
Choosing between the ASUS ROG Thor 1200W Platinum III PSU and the Lian Li SP850 V2 Gold ultimately depends on your specific needs. If you are building a high-performance gaming system that demands more power and efficiency, the ASUS unit is the clear choice despite its higher price. However, if you require a reliable power supply for a compact build or a budget-friendly option, the Lian Li offers excellent performance at a fraction of the cost. Consider your system requirements and budget to make the best choice for your setup.
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