Auotac 850W Fully Modular Power Supply, 80+ Gold vs NZXT C850 Gold Core - 850W ATX 3.1 Power Supply -
Updated August 2026 — Auotac 850W Fully Modular Power Supply, 80+ Gold wins on modularity and cooling, NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - wins on noise level.
The Auotac 850W offers a lower price and longer warranty, while the NZXT C850 provides advanced features and a reputable brand. Choose based on budget or features.
Why Auotac 850W Fully Modular Power Supply, 80+ Gold is better
Price
Auotac is $20 cheaper than NZXT
Warranty
Auotac offers a 10-year warranty compared to NZXT's 7-year
Efficiency
Both are 80 PLUS Gold, but Auotac is more budget-friendly
Why NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - is better
Noise
NZXT features a Zero RPM mode for quieter operation
Brand Reputation
NZXT is well-known in the PC hardware industry
Cable Design
NZXT has embossed cables for better aesthetics
Overall score
Specifications
| Spec | Auotac 850W Fully Modular Power Supply, 80+ Gold | NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - |
|---|---|---|
| Modular | Fully Modular | Fully Modular |
| ATX Standard | 3.1 | 3.1 |
| PCIe Support | 5.1 | 5.1 |
| RGB Lighting | Yes | No |
| Fan Type | RGB Low-Noise | FDB Zero RPM |
Dimension comparison
Overview of Power Supplies
In the competitive world of power supplies, the Auotac 850W Fully Modular Power Supply and the NZXT C850 Gold Core stand out as robust options for PC builders. Both provide 850W of power, but they differ in price, efficiency ratings, and additional features. The Auotac is priced at $79.99, while the NZXT comes in at $99.99, making the Auotac about 20% cheaper. This price point may attract budget-conscious buyers while still delivering reliable performance.
Efficiency Ratings
When it comes to efficiency, both power supplies are 80 PLUS Gold certified, ensuring they deliver up to 92% efficiency. However, the NZXT also boasts a Cybenetics Platinum efficiency rating, which indicates superior performance under load compared to standard Gold-rated supplies. This means that while both options will deliver efficient power, the NZXT may be better suited for systems that demand more from their power supply, especially during intensive tasks.
Modular Design
The modular design of both power supplies offers significant advantages in terms of cable management and airflow. The Auotac features fully modular dragon-patterned cables, which help reduce clutter and optimize airflow within the case. In contrast, the NZXT also offers a fully modular setup but enhances the user experience with embossed cables, providing a clean and compact design. Both designs allow users to utilize only the cables they need, but the NZXT's embossed cables may offer a slight edge in aesthetics and durability.
Cooling Solutions
Cooling is a crucial aspect of any power supply, and both units have unique approaches. The Auotac features a 140mm RGB low-noise fan designed for quiet operation and improved heat dissipation. Meanwhile, the NZXT is equipped with a 135mm fluid dynamic bearing fan that includes a Zero RPM mode. This feature allows the fan to remain completely off during low workloads, providing virtually silent operation. If quiet performance is a priority, the NZXT’s Zero RPM mode may be more appealing.
Compatibility with Modern Systems
Both power supplies are designed to support modern hardware with ATX 3.1 and PCIe 5.1 compatibility. The Auotac’s 12V-2x6 native connector is particularly noteworthy, as it is designed for high-performance GPUs, ensuring stable power delivery. On the other hand, the NZXT’s dual-color 12V-2x6 connector also provides safe and efficient power delivery for next-gen GPUs. This makes both options suitable for users building high-performance gaming rigs or workstations.
Component Quality
The quality of components used in a power supply can significantly affect its reliability and longevity. The Auotac employs 100% Japanese-made 105°C rated capacitors, which are known for their high reliability. Similarly, the NZXT also uses premium 105°C-rated capacitors, ensuring stable performance across various loads. While both power supplies utilize high-quality components, the reputation of the brands may influence buyer trust. NZXT has established a solid reputation in the PC hardware industry, which could sway some buyers toward their product.
Warranty and Support
Warranty coverage can be an essential factor when choosing a power supply. The Auotac comes with a generous 10-year limited warranty, providing peace of mind for users regarding long-term reliability. In comparison, the NZXT offers a 7-year warranty. While both warranties are substantial, the longer warranty period of the Auotac may appeal more to users concerned about the longevity of their components.
Which should you buy?
Choosing between the Auotac 850W Fully Modular Power Supply and the NZXT C850 Gold Core ultimately depends on your specific needs and budget. If you are looking for a more budget-friendly option that still offers high efficiency and a lengthy warranty, the Auotac at $79.99 may be the better choice. However, if you prioritize advanced features like Zero RPM fan mode and are willing to invest a bit more for potentially quieter operation and a reputable brand, the NZXT at $99.99 could be worth the extra cost. Consider what aspects are most important to your build to make the best decision.

