Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply - ATX 3.1 & PCIe vs Gigabyte P750BS 80 Plus Bronze Non Modular 750w Power Supply Unit

Overview of the Corsair HX1000i

The Corsair HX1000i is a fully modular power supply that excels in both performance and noise reduction. Priced at £169.99, it offers advanced features that cater to high-end gaming and workstation setups. Its compliance with the Intel ATX 3.1 standard ensures compatibility with the latest hardware, particularly supporting the PCIe Gen 5.1 platform.

This power supply includes a 140mm Fluid Dynamic Bearing (FDB) fan, which not only provides effective cooling but also operates quietly, enhancing the overall user experience. The Corsair iCUE software adds a layer of customisation, allowing users to create fan curves and monitor power settings. With its Zero RPM Fan Mode, the HX1000i is designed for silent operation under low to medium loads, making it an excellent choice for noise-sensitive environments.

Overview of the Gigabyte P750BS

The Gigabyte P750BS is a non-modular power supply unit priced at a more budget-friendly £65.01. It boasts an 80 PLUS Bronze certification, indicating that it operates with a higher energy efficiency than standard power supplies. This makes it a suitable option for users looking to save on electricity bills while still providing reliable power to their systems.

Equipped with a 120mm Silent Fluid Dynamic Bearing fan, the P750BS aims to deliver quiet performance. Its design features soft-textured embossed cables, adding to the aesthetic appeal of a build. Additionally, the single +12V rail and various protection measures, including OVP, OPP, SCP, UVP, OCP, and OTP, ensure that the power supply operates safely under different conditions, protecting both the unit and the connected components.

Performance Comparison

When it comes to performance, the Corsair HX1000i stands out with its higher wattage of 1000W compared to the Gigabyte P750BS's 750W. This difference in wattage can significantly impact the stability and performance of high-demand systems, particularly those with multiple GPUs or extensive peripherals.

The HX1000i's ability to handle transient power spikes thanks to its ATX 3.1 compliance offers an edge in terms of reliability during intense gaming sessions or heavy workloads. In contrast, while the P750BS is efficient with its 80 PLUS Bronze certification, it may not provide the same level of performance under extreme conditions, making the HX1000i a more robust option for enthusiasts.

Noise Levels

Noise levels are a crucial consideration for many users, especially for those building quiet PCs. The Corsair HX1000i features a 140mm FDB fan and includes a Zero RPM Fan Mode, which means that the fan only operates when necessary, ensuring near-silent operation at low to medium loads. This is particularly beneficial for users who prioritise a quiet computing environment.

On the other hand, the Gigabyte P750BS also uses a 120mm FDB fan designed for silent operation. However, it lacks the advanced features of the HX1000i, such as the Zero RPM Fan Mode. Consequently, while both power supplies aim for quiet operation, the HX1000i is likely to perform better in environments where silence is paramount.

Build Quality and Design

The Corsair HX1000i is designed with a fully modular approach, allowing users to connect only the cables necessary for their builds. This feature not only contributes to a cleaner and more organised appearance but also aids in airflow within the case. The robust build quality of Corsair power supplies is well-regarded, further adding to the unit's appeal.

Conversely, the Gigabyte P750BS is a non-modular unit, meaning all cables are permanently attached. While this may simplify the installation process for some users, it can lead to cable clutter, potentially obstructing airflow. Although the P750BS features soft-textured embossed cables for aesthetic appeal, the lack of modularity may be a drawback for those looking to optimise their builds.

User Customisation and Control

One of the highlights of the Corsair HX1000i is its compatibility with CORSAIR iCUE software, which allows users to create custom fan curves and monitor power settings. This level of customisation enables users to tailor the performance of their power supply to their specific needs, enhancing both efficiency and cooling.

In contrast, the Gigabyte P750BS does not offer such customisation options. While it provides essential protective features and operates efficiently, users seeking advanced control and monitoring capabilities will find the HX1000i significantly more appealing. The iCUE software integration makes the Corsair model a more attractive choice for tech-savvy users who enjoy fine-tuning their systems.

Price Differences

At £169.99, the Corsair HX1000i is positioned at the higher end of the market, reflecting its premium features and capabilities. This price point may be a barrier for budget-conscious consumers, but for those seeking a power supply that offers high performance, low noise, and advanced control, it represents a worthwhile investment.

In stark contrast, the Gigabyte P750BS is priced at £65.01, making it an excellent entry-level option for users who need a reliable power supply without breaking the bank. While it lacks some of the advanced features and higher wattage of the Corsair model, it provides solid performance for everyday computing tasks and moderate gaming.

Which should you buy?

The decision between the Corsair HX1000i and the Gigabyte P750BS ultimately hinges on your specific needs and budget. If you require a high-performance power supply with advanced features, customisation options, and low noise levels, the Corsair HX1000i is the clear winner, albeit at a higher price of £169.99.

However, if you are seeking a cost-effective solution that still offers reliable performance for standard computing tasks, the Gigabyte P750BS at £65.01 presents an attractive option. Its 80 PLUS Bronze certification and quiet operation make it suitable for less demanding systems. Therefore, consider your power requirements and whether the additional features of the Corsair justify the price difference for your build.