Auotac 850W Fully Modular Power Supply, 80+ Gold vs CORSAIR SF1000 Fully Modular Low Noise 80 Plus
Updated August 2026 — Auotac 850W Fully Modular Power Supply, 80+ Gold wins on warranty, CORSAIR SF1000 Fully Modular Low Noise 80 Plus wins on aesthetics and noise level.
The Auotac 850W offers great value for budget-conscious users, while the CORSAIR SF1000 excels in efficiency and compact design.
Why Auotac 850W Fully Modular Power Supply, 80+ Gold is better
Price
Auotac is significantly cheaper at $79.99.
Warranty
Auotac offers a longer 10-year warranty.
RGB Features
Auotac includes customizable RGB lighting.
Why CORSAIR SF1000 Fully Modular Low Noise 80 Plus is better
Efficiency
CORSAIR has an 80 PLUS Platinum rating.
Form Factor
CORSAIR is compact and ideal for small builds.
Cooling
CORSAIR features a quieter fan with Zero RPM mode.
Overall score
Specifications
| Spec | Auotac 850W Fully Modular Power Supply, 80+ Gold | CORSAIR SF1000 Fully Modular Low Noise 80 Plus |
|---|---|---|
| Certification | 80 PLUS Gold | 80 PLUS Platinum |
| Modular | Fully Modular | Fully Modular |
| Cooling Fan | 140mm RGB | 92mm PWM |
| Capacitors | 105°C Japanese | 105°C Japanese |
| Connector Type | 12V-2x6 | Type-5 Micro-Fit |
Dimension comparison
Price Comparison
The Auotac 850W Fully Modular Power Supply is priced at $79.99, making it about 58% cheaper than the CORSAIR SF1000, which retails for $189.99. This significant price difference could be a deciding factor for budget-conscious consumers. While the Auotac offers a strong performance for its price, the CORSAIR SF1000's higher cost reflects its premium features and superior efficiency rating. The Auotac’s price point makes it an attractive option, especially for users who need a reliable power supply without breaking the bank.
Efficiency Ratings
The Auotac boasts an 80 PLUS Gold certification, delivering an efficiency of 92%. In contrast, the CORSAIR SF1000 shines with an 80 PLUS Platinum rating, which guarantees even higher efficiency levels. This difference in efficiency ratings means that while the Auotac is more than capable, the CORSAIR's Platinum rating could translate to lower electricity bills and less heat generation over time. Users who prioritize energy efficiency and long-term cost savings may find the premium price of the CORSAIR justified by its higher performance in this category.
Form Factor and Compatibility
The Auotac is designed as a standard ATX power supply, suitable for a wide range of builds. On the other hand, the CORSAIR SF1000 is an SFX power supply, ideal for compact systems and comes with an SFX-to-ATX bracket for installation in larger cases. This versatility makes the CORSAIR an excellent choice for small form-factor PC enthusiasts. Users building high-performance, space-constrained systems may prefer the compact design of the CORSAIR, while those with standard cases can comfortably use the Auotac without any compatibility concerns.
Modular Design
Both power supplies are fully modular, which allows users to connect only the cables they need, reducing cable clutter and improving airflow inside the case. The Auotac features dragon-patterned cables that enhance aesthetics and organization. Conversely, the CORSAIR uses Type-5 Micro-Fit connectors, which are designed for space-saving and efficient cable management in tight setups. This modularity in both products ensures that users can achieve a clean and organized build, but the CORSAIR’s design may provide added benefits in smaller cases where space is at a premium.
Cooling Solutions
The Auotac features a 140mm RGB low-noise smart fan that not only enhances cooling but also adds a visual flair with customizable RGB lighting. Its silent mode is designed to outperform standard 120mm fans, making it a solid choice for users who value quiet operation. In comparison, the CORSAIR SF1000 is equipped with a 92mm PWM cooling fan that offers effective cooling with low noise. With the Zero RPM Mode, the CORSAIR's fan operates silently at low loads. While both power supplies ensure effective cooling, the choice may come down to whether users prefer the aesthetics of RGB lighting or the ultra-quiet performance of the CORSAIR.
Capacitor Quality
The Auotac utilizes 105°C-rated Japanese capacitors, known for their reliability and durability, ensuring stable performance during high-stress conditions. The same is true for the CORSAIR, which also incorporates 105°C-rated Japanese capacitors to guarantee unwavering power delivery. Both power supplies are built to withstand the demands of high-performance gaming and computing. While the capacitor quality is similar, the overall reliability may still hinge on other factors, such as warranty and customer support, which can vary between brands.
Warranty and Support
Auotac provides a 10-year limited warranty with its power supply, offering peace of mind for long-term use. In contrast, the CORSAIR SF1000 comes with a 7-year warranty, which is also commendable but shorter than Auotac's offering. A longer warranty can indicate a manufacturer’s confidence in their product’s durability and performance over time. Users looking for longevity and assurance in their investment may lean towards the Auotac for this reason, although the robust support from Corsair is well-regarded in the industry.
Which should you buy?
Choosing between the Auotac 850W Fully Modular Power Supply and the CORSAIR SF1000 ultimately depends on your specific needs and budget. The Auotac is significantly cheaper and offers solid performance with a long warranty, making it ideal for users seeking value. However, if you prioritize efficiency, compactness, and premium build quality, the CORSAIR SF1000 justifies its higher price with its Platinum certification and advanced features. Both power supplies are excellent choices, but your decision should reflect whether you value price or advanced specifications more.

