CORSAIR RM850e vs Gigabyte P750BS 80 Plus Bronze Non Modular 750w Power Supply Unit
Updated August 2026 — The CORSAIR RM850e offers superior features and performance, making it the better choice for high-end builds, while the Gigabyte P750BS is a budget-friendly option.
The CORSAIR RM850e offers superior features and performance, making it the better choice for high-end builds, while the Gigabyte P750BS is a budget-friendly option.
Why CORSAIR RM850e is better
Modular Design
Fully modular design enhances cable management.
Efficiency
Intel ATX 3.1 certification supports modern components.
Capacitor Quality
105°C-rated capacitors ensure reliability.
Why Gigabyte P750BS 80 Plus Bronze Non Modular 750w Power Supply Unit is better
Price
More affordable at £57.55.
Basic Functionality
Adequate for standard builds.
Protection Features
Includes multiple protection mechanisms.
Overall score
Specifications
| Spec | CORSAIR RM850e | Gigabyte P750BS 80 Plus Bronze Non Modular 750w Power Supply Unit |
|---|---|---|
| Brand | Corsair | Gigabyte |
| Fan Size | 120mm | 120mm |
| Certification | ATX 3.1 | 80 PLUS Bronze |
| Protection | Basic | Advanced |
| Cabling | Fully Modular | Non-Modular |
Dimension comparison
Price Comparison
The price difference between the CORSAIR RM850e and the Gigabyte P750BS is notable, with the CORSAIR model priced at £85.99, while the Gigabyte unit costs £57.55. This highlights a £28.44 disparity, making the Gigabyte option significantly more affordable. For budget-conscious consumers, the lower cost of the Gigabyte P750BS may be appealing, especially for those who do not require the additional features found in the CORSAIR model. However, the higher price of the CORSAIR is often justified by its advanced specifications and modular design, which may be worth the investment for some users.
Build Quality and Design
The build quality and design of a power supply unit are crucial for reliable performance. The CORSAIR RM850e boasts a fully modular design, allowing users to connect only the cables necessary for their specific builds, which can enhance airflow and reduce clutter. In contrast, the Gigabyte P750BS is a non-modular unit, meaning all cables are fixed, which may lead to more management challenges. The Gigabyte model does feature soft-textured embossed cables, which can improve the aesthetic appeal. However, for those prioritising a clean and efficient build, the CORSAIR’s modularity offers a clear advantage.
Efficiency and Certification
Efficiency is a critical factor when selecting a power supply, and both units offer different certifications. The CORSAIR RM850e is compliant with the Intel ATX 3.1 standard, ensuring high efficiency and support for modern components, including PCIe 5.1 graphics cards. It is designed to handle transient power excursions, which can be essential for high-performance systems. The Gigabyte P750BS, while 80 PLUS Bronze certified, does not offer the same level of efficiency as the CORSAIR. The 80 PLUS Bronze certification indicates that the Gigabyte unit is capable of at least 82% efficiency at 20% load, 85% at 50% load, and 82% at 100% load, which is respectable but not on par with the advanced features of the CORSAIR model.
Cooling Performance
Cooling performance is vital for maintaining system stability and longevity. The CORSAIR RM850e features a 120mm rifle bearing fan designed to keep noise levels low, even under full load. This is particularly beneficial for users who build silent systems or operate their PCs in noise-sensitive environments. The Gigabyte P750BS also includes a 120mm Silent Fluid Dynamic Bearing (FDB) fan, which aims to deliver quiet operation. While both power supplies are designed to minimise noise, the CORSAIR’s fan curve is specifically calculated to maintain low noise levels during demanding tasks, giving it an edge in cooling efficiency.
Capacitor Quality and Reliability
The quality of capacitors in a power supply can significantly affect its reliability and performance. The CORSAIR RM850e is equipped with 105°C-rated capacitors, which are designed to provide steady and reliable power delivery over an extended period. This high-quality component choice is indicative of a premium product aimed at enthusiasts and professional users. The Gigabyte P750BS does not specify the temperature rating of its capacitors, which may imply a lower performance threshold. For users who prioritise reliability and long-term performance, the CORSAIR’s superior capacitor quality stands out.
Compatibility and Future-Proofing
Compatibility and future-proofing are essential considerations when investing in a power supply. The CORSAIR RM850e, with its Intel ATX 3.1 certification, is built to support the latest hardware innovations, including next-generation graphics cards and motherboards. This makes it a suitable choice for users looking to build or upgrade to a cutting-edge system. On the other hand, the Gigabyte P750BS provides a single +12V rail, which is adequate for less demanding builds but may not cater to future high-performance components as effectively as the CORSAIR. Users planning to invest in high-end hardware may find the CORSAIR to be a more future-proof option.
User Experience and Support
User experience can greatly influence the overall satisfaction with a power supply. The CORSAIR RM850e's fully modular design simplifies installation and cable management, enhancing the user experience. Additionally, CORSAIR has a reputation for excellent customer support and product reliability, which can provide peace of mind for users. The Gigabyte P750BS, while functional, may not offer the same level of user-friendly features. However, it does provide robust protection mechanisms, including OVP, OPP, SCP, UVP, OCP, and OTP, ensuring a safe operating environment. Users prioritising ease of installation might lean towards the CORSAIR, while those focused on protective features may find the Gigabyte appealing.
Which should you buy?
Ultimately, the decision between the CORSAIR RM850e and the Gigabyte P750BS depends on your specific needs and budget. If you are looking for a high-quality, fully modular power supply that supports the latest technology and offers superior efficiency and cooling performance, the CORSAIR RM850e is worth the investment at £85.99. However, if you are on a tighter budget and require a reliable power supply for a standard build, the Gigabyte P750BS at £57.55 provides solid performance and essential features without breaking the bank. Each product serves different user priorities, making it essential to assess your individual requirements before making a final choice.
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