Auotac 850W Fully Modular Power Supply, 80+ Gold vs MONTECH Century II - 850W High-End ATX Gaming
Updated August 2026 — Auotac 850W Fully Modular Power Supply, 80+ Gold leads on warranty and aesthetics.
The Auotac 850W offers a lower price and appealing RGB features, while the MONTECH Century II boasts superior efficiency ratings. Choose based on your priorities.
Why Auotac 850W Fully Modular Power Supply, 80+ Gold is better
Price
Auotac is $9.91 cheaper
Aesthetics
Auotac features RGB lighting
Cable Management
Auotac has a dual-color 16-pin cable
Why MONTECH Century II - 850W High-End ATX Gaming is better
Efficiency
MONTECH has Cybenetics Platinum rating
Brand Reputation
Montech is known for high-end gaming products
Warranty
Both have 10-year warranty but Montech is more established
Overall score
Specifications
| Spec | Auotac 850W Fully Modular Power Supply, 80+ Gold | MONTECH Century II - 850W High-End ATX Gaming |
|---|---|---|
| Certification | 80 Plus Gold | 80 Plus Gold |
| Modular | Fully Modular | Fully Modular |
| ATX Standard | ATX 3.1 | ATX 3.1 |
| PCIe Support | PCIe 5.1 | PCIe 5.1 |
| Capacitors | 105°C Japanese | Standard |
Dimension comparison
Overview of the Auotac 850W and MONTECH Century II Power Supplies
When comparing the Auotac 850W Fully Modular Power Supply with the MONTECH Century II 850W High-End ATX Gaming Power Supply, it's important to highlight their core specifications and intended use. Both power supplies are 80 Plus Gold certified, ensuring efficient energy usage, but they come from different brands with unique features and price points. The Auotac is priced at $79.99, making it about 17% cheaper than the MONTECH Century II, which retails for $89.90.
Design and Build Quality
The design and build quality of a power supply can greatly affect its performance and aesthetics. The Auotac 850W features a fully modular design, which not only reduces cable clutter but also improves airflow within your PC case. It comes equipped with a 140mm RGB low-noise fan that enhances cooling efficiency and adds visual flair. On the other hand, the MONTECH Century II also boasts a fully modular setup and includes a similar 12V-2x6 cable for high-end graphics cards. Both units are designed for modern gaming setups, but the RGB lighting feature of the Auotac may appeal more to gamers looking for aesthetics.
Performance and Efficiency
In terms of performance, both power supplies are 80 Plus Gold certified, which means they are capable of delivering up to 92% efficiency. This certification ensures that both units are designed to minimize energy loss during power conversion. The Auotac’s use of 105°C Japanese capacitors is particularly noteworthy, as it enhances reliability and stability under load. Conversely, the MONTECH Century II is also recognized for its high-end performance, receiving a Cybenetics Platinum rating, which indicates superior efficiency and performance compared to standard Gold-rated units. This makes it a solid choice for users seeking top-tier performance.
Compatibility and Features
Compatibility is another crucial aspect when choosing a power supply. Both the Auotac and MONTECH Century II are ATX 3.1 and PCIe 5.1 ready, making them suitable for high-performance PC components. The Auotac stands out with its dual-color 16-pin cable, which simplifies installation by indicating proper connections. In contrast, the MONTECH Century II emphasizes its high-end gaming suitability with its powerful features but lacks the unique cable indicator seen in the Auotac. For gamers looking for ease of installation, the Auotac may offer a slight advantage.
Cooling Solutions
Effective cooling is vital for maintaining optimal performance in high-demand gaming scenarios. The Auotac features a 140mm low-noise fan, designed to outperform standard 120mm fans in terms of quiet operation and heat dissipation. This is particularly beneficial for users who prioritize a quiet computing environment. The MONTECH Century II does not specify its fan size but is marketed as a high-end unit, suggesting it also employs effective cooling mechanisms. Without specific details on its fan performance, the Auotac’s cooling solution might provide a clearer advantage.
Warranty and Support
Warranty length can be an important factor for consumers concerned about the longevity and reliability of their power supply. The Auotac offers a substantial 10-year limited warranty, which speaks to its durability and the manufacturer's confidence in its product. The MONTECH Century II also comes with a 10-year warranty, ensuring similar peace of mind for users. Both brands provide robust support for their products, which is beneficial for long-term use.
Pricing and Value
When it comes to pricing, the Auotac 850W is listed at $79.99, which is a compelling price point for a fully modular power supply with strong features. In comparison, the MONTECH Century II is priced at $89.90, making it about $9.91 more expensive. While both units offer good value given their features and efficiency ratings, the Auotac provides a more economical option for budget-conscious consumers without sacrificing essential specifications.
Which should you buy?
Ultimately, the choice between the Auotac 850W and the MONTECH Century II depends on your specific needs and preferences. If you prioritize a lower price, aesthetic features like RGB lighting, and a clear cable management system, the Auotac 850W is an excellent option. However, if you are looking for potentially superior efficiency and performance in a high-end gaming context, the MONTECH Century II may be worth the extra investment. Both power supplies are solid choices, ensuring reliable performance for any gaming setup.

