Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply - ATX 3.1 & PCIe vs Seasonic Prime TX-1600 Noctua Edition

Price Comparison

In terms of cost, there is a significant difference between the Corsair HX1000i and the Seasonic Prime TX-1600 Noctua Edition. The Corsair HX1000i is priced at £169.99, while the Seasonic Prime TX-1600 Noctua Edition comes in at a hefty £429.00. This makes the Corsair model over £259 cheaper than its competitor, which is a stark contrast for consumers considering budget constraints. While the Seasonic offers premium features, the price point of the Corsair may appeal to those seeking a high-quality power supply without breaking the bank.

Performance

Performance is a critical factor when choosing a power supply, and both the Corsair HX1000i and the Seasonic Prime TX-1600 deliver robust capabilities. The Corsair model is Intel ATX 3.1 certified and supports the PCIe Gen 5.1 platform, making it suitable for modern builds. Meanwhile, the Seasonic boasts ultra-tight voltage regulation and is also ATX 3.1 and PCIe 5.1 compliant, ensuring it can safely power high-performance graphics cards such as the NVIDIA GeForce RTX 4090 series. The Seasonic's superior output capacity of 1600W compared to Corsair's 1000W may appeal to those with high-demand systems.

Noise Level

When it comes to noise levels, both power supplies are designed for quiet operation, but they employ different technologies. The Corsair HX1000i features a 140mm Fluid Dynamic Bearing fan that delivers extremely quiet performance, along with a Zero RPM Fan Mode that switches off the fan entirely under low and medium loads. In contrast, the Seasonic Prime TX-1600 uses a renowned Noctua NF-A12x25 fan, known for its ultra-quiet operation, and operates in a semi-passive mode, where the fan remains off until the load reaches 50%. This ensures that the Seasonic is designed for virtually noise-free operation, which may be crucial for users prioritising silence.

Modular Design

Both the Corsair HX1000i and the Seasonic Prime TX-1600 offer fully modular designs, allowing users to connect only the cables necessary for their builds. This feature is particularly beneficial for maintaining tidy and efficient cable management within the case. The Corsair’s modular cabling simplifies the process of creating clean builds, while the Seasonic’s Noctua themed cabling not only enhances aesthetics but also contributes to its overall efficiency. Both models cater to those who value a neat and organised interior, which is essential for airflow and cooling.

Software Integration

One area where the Corsair HX1000i stands out is its integration with CORSAIR iCUE software. This powerful tool allows users to create custom fan curves, monitor power settings, and toggle between single to multi-rail overcurrent protection (OCP) on-the-fly. This level of control can be advantageous for users who wish to optimise their system's performance actively. The Seasonic Prime TX-1600 does not mention any software integration, which may leave users seeking that level of customisation wanting more.

Efficiency Ratings

Efficiency is an essential consideration for any power supply, and both models boast impressive ratings. The Corsair HX1000i offers a high level of efficiency due to its design, but specific numbers are not provided. In contrast, the Seasonic Prime TX-1600 is certified at the 80 PLUS Titanium level, which indicates it operates with an efficiency of 94% at 50% load. This high efficiency signifies reduced waste heat and lower power consumption, making the Seasonic a potentially better choice for environmentally conscious consumers or those looking to save on electricity bills.

Cooling Solutions

Cooling solutions are a vital aspect of power supply performance, and both the Corsair and Seasonic models incorporate advanced cooling technologies. The Corsair HX1000i utilises a 140mm fan designed for quiet operation, complemented by its Zero RPM Fan Mode for silent function at lower loads. Meanwhile, the Seasonic Prime TX-1600 features a highly optimised fan grill alongside its Noctua fan, which is certified to operate at a noise level approximately 8-10 dB(A) quieter than the standard PRIME TX-1600. This superior cooling design makes the Seasonic particularly attractive for users with high-performance gaming or workstation PCs.

Which should you buy?

Choosing between the Corsair HX1000i and the Seasonic Prime TX-1600 Noctua Edition ultimately depends on your specific requirements and budget. If you are looking for a more budget-friendly option without sacrificing quality, the Corsair HX1000i at £169.99 offers excellent features such as full modularity and low noise levels. However, if your focus is on maximum output and premium features, the Seasonic Prime TX-1600, despite its higher price of £429.00, provides superior efficiency, outstanding cooling capabilities, and the ability to power demanding components. Assessing your needs and financial considerations will guide you to the right choice.