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CORSAIR HX1500i vs MONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe

Updated August 2026The CORSAIR HX1500i offers superior power output and advanced features, while the MONTECH Century II is a budget-friendly option with solid performance.

The CORSAIR HX1500i offers superior power output and advanced features, while the MONTECH Century II is a budget-friendly option with solid performance.

Why CORSAIR HX1500i is better

Power Output

1500W vs 850W

Cooling Performance

Superior fan technology

Software Integration

Includes iCUE software

Why MONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe is better

Price

£80.04 vs £229.00

Warranty

10-year warranty

Energy Efficiency

80 Plus Gold certification

Overall score

CORSAIR HX1500i
85
MONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe
65

Specifications

SpecCORSAIR HX1500iMONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe
BrandCorsairMontech
ModularFully ModularFully Modular
Fan Size140mmN/A
CertificationN/A80 Plus Gold
SoftwareiCUEN/A

Dimension comparison

CORSAIR HX1500iMONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe

Price Comparison

When it comes to price, the MONTECH Century II is significantly more affordable than the CORSAIR HX1500i. Priced at £80.04, the MONTECH offers a cost-effective solution for gamers and PC builders. In contrast, the CORSAIR HX1500i comes with a premium price tag of £229.00. This substantial price difference highlights a key consideration for budget-conscious consumers. While the MONTECH offers solid performance at a lower cost, the CORSAIR's higher price may reflect its advanced features and specifications.

Power Output

The power output is a crucial factor for anyone looking to build or upgrade a gaming rig. The CORSAIR HX1500i boasts an impressive 1500W power capacity, which is more than sufficient for high-end systems, including those with multiple graphics cards. On the other hand, the MONTECH Century II provides a robust 850W output. While 850W is adequate for many gaming setups, the CORSAIR's higher wattage offers more headroom for future upgrades or overclocking. Thus, for those seeking maximum power, the CORSAIR clearly stands out.

Modular Design

Modularity is an essential feature for ensuring a neat and efficient build. Both the CORSAIR HX1500i and MONTECH Century II are fully modular, allowing users to connect only the cables they need. This design choice facilitates better airflow and easier cable management within the case. However, the CORSAIR model additionally supports the Intel ATX 3.1 standard and is compliant with the PCIe Gen 5 platform, which may be an advantage for those looking to future-proof their systems. Therefore, while both power supplies offer modularity, the CORSAIR provides a slight edge with its advanced compatibility.

Certification Rating

Certification ratings indicate the efficiency and reliability of a power supply. The MONTECH Century II has an 80 Plus Gold certification, ensuring a high level of energy efficiency. In comparison, while the CORSAIR HX1500i does not explicitly list its certification rating in the provided information, it is implied to meet the ATX 3.1 standards. If high efficiency is a determining factor, the MONTECH’s Gold certification is a strong selling point, making it a solid choice for energy-conscious consumers.

Cooling Performance

Cooling performance is vital for maintaining the longevity of a power supply, especially under heavy loads. The CORSAIR HX1500i features a 140mm Fluid Dynamic Bearing (FDB) fan, designed for quiet operation and long-lasting performance. This fan is capable of operating in a Zero RPM Fan Mode, which completely switches off the fan at low and medium loads, providing near-silent operation. While the MONTECH Century II does not specify its cooling mechanism in the provided details, the superior cooling technology of the CORSAIR makes it a more attractive option for users prioritising noise reduction and thermal management.

Software Integration

Software integration can enhance the user experience by providing real-time monitoring and customisation options. The CORSAIR HX1500i includes access to powerful CORSAIR iCUE software, allowing users to create custom fan curves, monitor power settings, and toggle between single to multi-rail overcurrent protection on-the-fly. This feature adds a layer of control and optimisation for gamers and PC builders who want to tailor their system’s performance. The MONTECH Century II lacks similar software capabilities, which may appeal less to tech-savvy users looking for a more interactive experience.

Warranty and Reliability

Warranty length is often indicative of a product's reliability and the manufacturer's confidence in their offering. The MONTECH Century II comes with an impressive 10-year warranty, providing peace of mind for users who want assurance in longevity and performance. Conversely, the warranty information for the CORSAIR HX1500i is not specified, which might raise questions about its long-term reliability. A longer warranty, such as that offered by MONTECH, can be an essential factor for consumers prioritising durability and support.

Which should you buy?

Choosing between the CORSAIR HX1500i and the MONTECH Century II ultimately depends on your specific needs and budget. If you require high wattage for a demanding gaming setup and value advanced features like software integration, the CORSAIR HX1500i is a strong contender despite its higher price of £229.00. However, if you are looking for a more budget-friendly option without compromising on essential features, the MONTECH Century II at £80.04 offers excellent performance for mid-range systems and comes with a decade-long warranty. Therefore, for gamers with varying needs, both power supplies present compelling options in their respective categories.

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CORSAIR HX1500i vs MONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybe | versusfinder