Corsair HX1000i Fully Modular Ultra-Low Noise ATX vs MONTECH Century II - 850W High-End ATX Gaming
Updated August 2026 — Corsair HX1000i Fully Modular Ultra-Low Noise ATX leads on noise level and cooling.
The Corsair HX1000i offers superior performance and features, making it the better choice for high-end systems, while the MONTECH Century II is a budget-friendly option.
Why Corsair HX1000i Fully Modular Ultra-Low Noise ATX is better
Power Output
Corsair provides 1000W vs MONTECH's 850W
Efficiency
Corsair has 80 Plus Platinum vs Gold for MONTECH
Cooling
Corsair features a superior cooling solution with Zero RPM mode
Why MONTECH Century II - 850W High-End ATX Gaming is better
Price
MONTECH is significantly cheaper at $89.90
Warranty
Both have a 10-year warranty, but MONTECH is budget-friendly
Modularity
Both are fully modular, but MONTECH is simpler for basic builds
Overall score
Specifications
| Spec | Corsair HX1000i Fully Modular Ultra-Low Noise ATX | MONTECH Century II - 850W High-End ATX Gaming |
|---|---|---|
| Brand | Corsair | Montech |
| Efficiency Rating | 80 Plus Platinum | 80 Plus Gold |
| Power Output | 1000W | 850W |
| Cooling Type | Fluid Dynamic Bearing | Not specified |
| Modularity | Fully Modular | Fully Modular |
Dimension comparison
Price Comparison
When it comes to price, the MONTECH Century II is significantly more affordable than the Corsair HX1000i. The Corsair HX1000i is priced at $234.99, while the MONTECH Century II comes in at just $89.90. This means that the MONTECH is about 62% cheaper than the Corsair, making it an attractive option for budget-conscious consumers. However, the difference in price reflects the features and performance of each power supply, which are worth considering before making a purchase.
Power Output
In terms of power output, the Corsair HX1000i offers a robust 1000 watts, compared to the 850 watts provided by the MONTECH Century II. This 150-watt difference means that the Corsair is better suited for high-performance gaming rigs and systems with multiple GPUs or other demanding components. If you plan to run a setup that requires more power, the Corsair may be the better choice despite its higher cost.
Efficiency Ratings
The Corsair HX1000i boasts an impressive 80 Plus Platinum efficiency rating, while the MONTECH Century II carries an 80 Plus Gold rating. The Platinum rating indicates that the Corsair power supply is more efficient, providing more power to your components while producing less heat. This can lead to lower electricity bills over time. Given that the Corsair is designed for premium performance, its superior efficiency supports long-term savings, especially for users with high energy demands.
Modularity
Both the Corsair HX1000i and the MONTECH Century II feature fully modular designs, allowing users to connect only the cables they need for their specific builds. This design choice is beneficial for maintaining a clean and organized case, reducing clutter and improving airflow. However, the Corsair also integrates with the powerful CORSAIR iCUE software, which enables users to create custom fan curves and monitor power settings. This added functionality gives the Corsair an edge for those looking for advanced control over their power supply.
Cooling Solutions
Cooling performance is another area where the Corsair HX1000i stands out. It utilizes a 140mm Fluid Dynamic Bearing fan, which is designed to operate quietly and efficiently. The Zero RPM Fan Mode allows the fan to turn off completely at low to medium loads, ensuring near-silent operation. In contrast, the MONTECH Century II does not specify its cooling technology, which likely means it may not provide the same level of quiet performance under low loads. For users who prioritize a silent system, the Corsair’s cooling features may justify its higher price.
Warranty and Reliability
The Corsair HX1000i comes with a ten-year warranty, indicating a high level of confidence in its reliability and longevity. This warranty period is a strong selling point for consumers concerned about the durability of their power supply. The MONTECH Century II also offers a ten-year warranty, ensuring reliability for users. However, given the Corsair's more premium build and efficiency ratings, the warranty on the Corsair may provide peace of mind for those investing in a high-end system.
Brand Reputation
Corsair has established itself as a leading name in the PC component industry, particularly known for high-quality power supplies. The brand's reputation for performance and reliability adds significant value, especially for gamers and PC enthusiasts. While Montech is a respected brand as well, it does not have the same level of recognition as Corsair. Those seeking a proven track record in performance might lean towards the Corsair HX1000i, particularly for high-stakes gaming or workstation builds.
Which should you buy?
The choice between the Corsair HX1000i and the MONTECH Century II largely depends on your specific needs and budget. The Corsair HX1000i, priced at $234.99, offers superior power output, efficiency, and advanced features, making it ideal for high-performance systems. Conversely, if you are looking for a more budget-friendly option and still want a reliable power supply, the MONTECH Century II at $89.90 is a compelling choice. Ultimately, if performance and premium features are your top priorities, the Corsair is worth the investment. However, for users on a tighter budget, the MONTECH Century II provides solid performance at a significantly lower cost.

