Auotac 850W Fully Modular Power Supply, 80+ Gold vs Redragon RGPS-850W 80+ Gold
Updated August 2026 — Auotac 850W Fully Modular Power Supply, 80+ Gold wins on modularity and cooling, Redragon RGPS-850W 80+ Gold wins on rgb features.
The Auotac 850W offers excellent value with its lower price and solid performance, while the Redragon RGPS-850W provides more RGB customization and a compact design.
Why Auotac 850W Fully Modular Power Supply, 80+ Gold is better
Price
Auotac is $45 cheaper.
Efficiency
Both are 80+ Gold, but Auotac emphasizes power spike management.
Warranty
Auotac offers a 10-year warranty.
Why Redragon RGPS-850W 80+ Gold is better
RGB Options
Redragon has 9 RGB modes and 26 colors.
Compact Size
Redragon is 160mm, allowing better compatibility.
Fan Technology
Redragon features a zero RPM mode for quieter operation.
Overall score
Specifications
| Spec | Auotac 850W Fully Modular Power Supply, 80+ Gold | Redragon RGPS-850W 80+ Gold |
|---|---|---|
| Power Output | 850W | 850W |
| Certification | 80+ Gold | 80+ Gold |
| Modularity | Fully Modular | Fully Modular |
| Capacitors | 105°C Japanese | 100% Japanese |
| Fan Size | 140mm | Smart ECO |
Dimension comparison
Overview of the Auotac 850W and Redragon RGPS-850W
The Auotac 850W Fully Modular Power Supply is priced at $79.99, making it about 17% cheaper than the Redragon RGPS-850W, which retails for $124.99. Both power supplies are 80+ Gold certified, ensuring high energy efficiency and effective power delivery for gaming rigs and other high-performance PCs.
The Auotac model features a dual-color 12V-2x6 PCIe 5.1 cable ideal for modern graphics cards, while the Redragon unit comes with an upgraded 12VHPWR cable, enhancing compatibility with the latest GPUs. Both options support ATX 3.1 standards and PCIe 5.1, making them capable of handling the power demands of advanced hardware.
Power Efficiency and Performance
Both power supplies are certified with an 80 Plus Gold rating, which indicates that they operate at around 92% efficiency under standard load conditions. This certification is crucial for gamers and professionals who require reliable and stable power delivery. However, the Auotac power supply emphasizes its capability to manage power spikes efficiently, benefiting high-performance components.
The Redragon RGPS-850W also ensures reduced case temperatures and noise levels, contributing to a quieter and cooler system. With its smart ECO low noise RGB fan, it operates in a zero RPM mode until the temperature reaches 60°C, showcasing its energy-saving capabilities.
Build Quality and Components
When it comes to build quality, both power supplies utilize 100% Japanese capacitors, known for their reliability and durability. This feature is essential for maintaining stable performance and longevity, particularly under heavy loads during gaming sessions.
The Auotac model promotes its use of 105°C Japanese capacitors, which adds an extra layer of assurance regarding its operational stability. In contrast, the Redragon RGPS-850W highlights its compact design at 160mm, making it suitable for various PC builds and allowing for better cable management.
Modular Design and Cable Management
The Auotac 850W offers a fully modular design, allowing users to connect only the cables they need, which helps reduce clutter and enhances airflow within the case. This is particularly beneficial for maintaining optimal thermal performance during intensive tasks.
On the other hand, the Redragon RGPS-850W also features flat fully modular cables designed to minimize clutter and improve airflow. This design choice is crucial for gamers and PC builders focused on aesthetics as well as functionality, making both products strong contenders in this category.
Cooling Solutions
Cooling is a vital aspect of any power supply, especially for high-performance systems. The Auotac 850W includes a 140mm low-noise smart fan that operates quietly while effectively dissipating heat. Its RGB lighting adds a visual flair, allowing customization according to user preference.
The Redragon RGPS-850W offers a unique zero RPM mode, where the fan remains off until the internal temperature exceeds 60°C. This feature not only keeps noise levels to a minimum during lighter usage scenarios but also enhances the overall user experience by maximizing acoustic comfort.
RGB Features and Aesthetics
Aesthetics play a significant role for many PC builders, and both power supplies cater to this aspect. The Auotac 850W features an ARGB lighting model that allows users to adjust the lighting style to fit their system's theme, creating a customizable visual experience.
The Redragon RGPS-850W takes it a step further with nine different RGB modes and 26 selectable colors, giving users a wider range of options for personalizing their setup. This level of customization can help users create a unique ambiance that matches their gaming or working environment.
Pricing and Value Proposition
The Auotac 850W is priced at $79.99, providing a competitive edge as it is significantly cheaper than the Redragon RGPS-850W, which is priced at $124.99. This price difference of about $45 could be a decisive factor for budget-conscious consumers seeking high-quality power supplies without compromising on essential features.
While the Redragon offers additional RGB customization and a slightly more compact form factor, the value proposition of the Auotac, with its lower price and robust performance metrics, might appeal more to those looking to maximize their budget while still getting an efficient power supply.
Which should you buy?
Choosing between the Auotac 850W and the Redragon RGPS-850W ultimately depends on your specific needs and budget. If you prioritize cost and essential features like high efficiency and modularity, the Auotac 850W at $79.99 is a solid choice. However, if you desire extensive RGB customization and a compact design, and don’t mind spending a bit more, the Redragon RGPS-850W at $124.99 may be the better option. Both power supplies are excellent, but your choice should align with your performance requirements and aesthetic preferences.

