Cooler Master V850 SFX Gold 850W Fully Modular vs NZXT C850 Gold Core - 850W ATX 3.1 Power Supply -
Updated August 2026 — Cooler Master V850 SFX Gold 850W Fully Modular wins on size and warranty, NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - wins on noise and cooling.
The Cooler Master V850 SFX Gold excels in warranty and compact design, while the NZXT C850 Gold Core offers superior efficiency and a lower price. Choose based on your specific needs.
Why Cooler Master V850 SFX Gold 850W Fully Modular is better
Warranty
10-year warranty vs 7-year warranty
Form Factor
SFX design for compact builds
Cable Design
90° durable cables for better safety
Why NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - is better
Price
$99.99 vs $153.25
Cooling
Larger 135mm fan with Zero RPM mode
Efficiency
Cybenetics Platinum certification
Overall score
Specifications
| Spec | Cooler Master V850 SFX Gold 850W Fully Modular | NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - |
|---|---|---|
| Power | 850W | 850W |
| Modularity | Fully Modular | Fully Modular |
| Efficiency Rating | 80 Plus Gold | 80 Plus Gold & Cybenetics Platinum |
| Fan Size | 92mm | 135mm |
| Connector Type | 12VHPWR | 12V-2x6 |
Dimension comparison
Design and Form Factor
When it comes to design, the Cooler Master V850 SFX Gold and the NZXT C850 Gold Core cater to different needs. The V850 SFX Gold is tailored for a small form factor (SFF) with its SFX design, making it ideal for compact builds, while the C850 Gold Core adheres to the traditional ATX form factor, which suits larger cases. The V850 SFX Gold emphasizes a mighty ITX design, allowing it to accommodate systems ranging from mini-ITX to E-ATX. In contrast, the C850 Gold Core is designed for modern performance PCs, supporting next-gen GPUs with a dual-color 12V-2x6 connector.
Efficiency Ratings
Both power supplies boast an impressive 80 Plus Gold efficiency rating, but the NZXT C850 Gold Core takes it a step further with its Cybenetics Platinum certification. This means that while both deliver up to 90% efficiency, the C850 Gold Core is rated for superior performance, particularly in terms of heat reduction and power draw under demanding loads. The Cooler Master V850 SFX Gold, while still efficient, does not carry the Cybenetics certification, which may be a deciding factor for users prioritizing high-efficiency operations.
Cooling Mechanisms
Cooling performance is a critical aspect of any power supply, and here, both options excel. The Cooler Master V850 SFX Gold features a 92mm Fluid Dynamic Bearing (FDB) fan designed for reliable and efficient cooling with a low-maintenance profile. Conversely, the NZXT C850 Gold Core boasts a larger 135mm FDB fan that operates in Zero RPM mode during light workloads, ensuring near-silent performance. This fan also contributes to its Cybenetics A++ noise rating, which is particularly appealing for users seeking a quiet computing environment.
Cable Management
In terms of cable management, both power supplies are fully modular, allowing users to utilize only the cables they need. The Cooler Master V850 SFX Gold features 90° durable cables, which enhance electrical durability and safety. Meanwhile, the NZXT C850 Gold Core offers embossed cables that are flexible and durable, simplifying routing within cases. While both designs aim to reduce clutter, the Cooler Master’s customized cable lengths offer a tailored experience, which may be beneficial in specific builds, especially for SFF setups.
Warranty and Reliability
Warranty and reliability are crucial considerations when choosing a power supply. The Cooler Master V850 SFX Gold comes with an impressive 10-year warranty, indicating strong confidence in its durability and performance. On the other hand, the NZXT C850 Gold Core offers a 7-year warranty, which, while still substantial, is shorter compared to its competitor. Both models utilize high-quality components: the V850 SFX Gold employs 100% Japanese capacitors, while the C850 Gold Core features 105°C-rated capacitors for stable performance across a wide range of system loads.
Price Comparison
Pricing is a significant factor for many consumers, and in this case, the NZXT C850 Gold Core is substantially cheaper at $99.99, making it about 35% less expensive than the Cooler Master V850 SFX Gold, which is priced at $153.25. This price difference may sway budget-conscious buyers towards the NZXT model without sacrificing performance or features. However, those looking for the SFF advantages and the longer warranty might find the Cooler Master worth the additional cost.
Performance Under Load
Both power supplies are designed to handle demanding loads effectively. The Cooler Master V850 SFX Gold supports up to 600W power delivery to the GPU via its ATX 3.1 cables, providing robust performance for high-end gaming and creative tasks. The NZXT C850 Gold Core also offers a similar 600W capacity with its 12V-2x6 PCIe 5.1 connector, ensuring stable power delivery for modern GPUs. While both units can handle demanding performance, the choice may depend on the specific graphics card and system requirements.
Which should you buy?
Ultimately, the decision between the Cooler Master V850 SFX Gold and the NZXT C850 Gold Core hinges on your specific needs and preferences. If you require a compact power supply for a small form factor build and value a longer warranty, the Cooler Master is the clear choice. However, if you are looking for a cost-effective solution with excellent efficiency ratings and quieter operation, the NZXT model stands out as a compelling option. Both power supplies provide reliable performance, but your choice will depend on the balance of price, design, and specific use case requirements.

