NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - 80 PLUS Gold - Cybenetics Plat vs Gigabyte P750BS 80 Plus Bronze Non Modular 750w Power Supply Unit
Updated August 2026 — The NZXT C850 Gold Core offers superior efficiency, quieter operation, and advanced features worth the higher price, while the Gigabyte P750BS is a solid budget option with essential protections.
The NZXT C850 Gold Core offers superior efficiency, quieter operation, and advanced features worth the higher price, while the Gigabyte P750BS is a solid budget option with essential protections.
Why NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - 80 PLUS Gold - Cybenetics Plat is better
Efficiency
80 PLUS Gold vs Bronze certification
Noise
Whisper-quiet operation certified below 15 dBA
Compatibility
ATX 3.1 and PCIE 5.1 ready for next-gen GPUs
Why Gigabyte P750BS 80 Plus Bronze Non Modular 750w Power Supply Unit is better
Price
Significantly lower cost at £65.01
Protection
Includes OVP, OPP, SCP, UVP, OCP, OTP protections
Fan Size
120mm FDB fan vs 135mm but still silent
Overall score
Specifications
| Spec | NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - 80 PLUS Gold - Cybenetics Plat | Gigabyte P750BS 80 Plus Bronze Non Modular 750w Power Supply Unit |
|---|---|---|
| Wattage | 850W | 750W |
| Certification | 80 PLUS Gold | 80 PLUS Bronze |
| Fan Size | 135mm FDB | 120mm FDB |
| Modularity | Modular | Non-Modular |
| Noise Level | <15 dBA (A++ certified) | No certification |
| Protection Features | Not explicitly listed | OVP, OPP, SCP, UVP, OCP, OTP |
| Compatibility | ATX 3.1, PCIE 5.1 ready | Single +12V rail |
Dimension comparison
Price Comparison
When it comes to price, the Gigabyte P750BS is the more economical choice at £65.01, whereas the NZXT C850 Gold Core is priced at £89.99. This represents a difference of £24.98, making the Gigabyte model significantly more affordable for those on a tighter budget. However, while the cost is a crucial factor, it’s essential to consider what each power supply offers for the price. The NZXT C850 Gold Core, despite its higher price, provides advanced features that may justify the investment for serious gamers or PC builders.
Efficiency Ratings
The efficiency ratings of power supplies can significantly impact energy consumption and overall performance. The NZXT C850 Gold Core holds an 80 PLUS Gold certification, indicating it operates with a minimum of 87% efficiency at 20%, 50%, and 100% load. In contrast, the Gigabyte P750BS is rated at 80 PLUS Bronze, which typically denotes around 82% efficiency at similar loads. This means that the NZXT model not only saves more energy but also reduces heat generation, which can be beneficial for maintaining optimal system temperatures during intensive tasks.
Cooling Solutions
Cooling mechanisms are crucial for maintaining performance and reliability in power supplies. The Gigabyte P750BS features a 120mm silent fluid dynamic bearing (FDB) fan, designed to operate quietly while providing adequate airflow. On the other hand, the NZXT C850 Gold Core is equipped with a larger 135mm FDB fan that offers whisper-quiet operation, certified at less than 15 dBA under standard conditions. Additionally, it includes a Zero RPM mode that activates during light workloads, ensuring near-silent performance, which might appeal to users prioritising a quiet PC environment.
Compatibility with Modern Hardware
Compatibility with contemporary hardware is a vital aspect for gamers and professionals alike. The NZXT C850 Gold Core is ATX 3.1 certified and PCIE 5.1 ready, equipped to support next-gen GPUs with a dual-colour 12V-2x6 connector, making it ideal for modern NVIDIA graphics cards. Conversely, the Gigabyte P750BS features a single +12V rail and is generally compatible with various systems, but it lacks the specific readiness for the latest GPU technologies. This makes the NZXT model a better option for those looking to build or upgrade to cutting-edge hardware.
Build Quality and Design
The build quality of a power supply can significantly affect its longevity and performance. The NZXT C850 Gold Core boasts a Cybenetics Platinum efficiency rating, suggesting superior internal components and a design aimed at longevity and reliability under load. Additionally, its soft-textured embossed cables enhance both aesthetics and durability. In comparison, while the Gigabyte P750BS is well-constructed, it is a non-modular unit, which may lead to cluttered cable management within a case. Users who value both form and function may find the NZXT's design more suitable for a clean and efficient build.
Protection Features
Safety features in power supplies are crucial for protecting your entire system from potential damage. The Gigabyte P750BS includes multiple protection mechanisms such as Over Voltage Protection (OVP), Over Power Protection (OPP), Short Circuit Protection (SCP), Under Voltage Protection (UVP), Over Current Protection (OCP), and Over Temperature Protection (OTP). While the NZXT C850 Gold Core does not list these protections explicitly, its high efficiency and quality build imply a reliable safety profile. However, for users prioritising extensive protection features, the Gigabyte model may offer additional peace of mind.
Noise Levels
Noise levels can affect the overall user experience, especially in quiet environments. The NZXT C850 Gold Core excels in this area with a Cybenetics noise certification of A++ for its whisper-quiet operation, producing sound levels below 15 dBA. This is particularly advantageous for gamers or professionals who require a serene working atmosphere. In contrast, the Gigabyte P750BS, while designed to be silent, does not have a specific noise certification and may not perform as quietly under load, making it less appealing for users sensitive to noise.
Which should you buy?
The decision between the NZXT C850 Gold Core and the Gigabyte P750BS ultimately depends on your specific needs and budget. If you are looking for superior efficiency, advanced features, and quieter operation, the NZXT C850 Gold Core at £89.99 is worth the investment. However, if you are on a budget and seek a reliable power supply for less demanding builds, the Gigabyte P750BS, priced at £65.01, offers excellent value with essential features. Consider your usage scenario and preferences carefully to determine which power supply aligns best with your requirements.
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