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CORSAIR RM1000e vs GameMax 750W Rampage Power Supply

Updated August 2026The CORSAIR RM1000e offers superior performance and features, making it the better choice for high-end builds, while the GameMax 750W Rampage is a budget-friendly option for basic systems.

The CORSAIR RM1000e offers superior performance and features, making it the better choice for high-end builds, while the GameMax 750W Rampage is a budget-friendly option for basic systems.

Why CORSAIR RM1000e is better

Price

CORSAIR is more expensive but offers advanced features.

Modular Design

Fully modular design allows for better cable management.

Efficiency

Higher efficiency ratings with Intel ATX 3.1 certification.

Why GameMax 750W Rampage Power Supply is better

Affordability

GameMax is significantly cheaper.

Cooling Fan Size

Larger 14cm fan for effective cooling.

User-Friendly

Semi-modular design is easier for beginners.

Overall score

CORSAIR RM1000e
85
GameMax 750W Rampage Power Supply
60

Specifications

SpecCORSAIR RM1000eGameMax 750W Rampage Power Supply
BrandCorsairGAMEMAX
Power Output1000W750W
CertificationATX 3.180 Plus Bronze
Fan Size120mm14cm
ModularityFully ModularSemi-Modular

Dimension comparison

CORSAIR RM1000eGameMax 750W Rampage Power Supply

Price Comparison

When considering price, the GameMax 750W Rampage Power Supply is significantly more affordable than the CORSAIR RM1000e. Currently, the GameMax is priced at £45.80, while the CORSAIR comes in at £149.88. This price difference of £104.08 could be a crucial factor for budget-conscious consumers looking for a reliable power supply without sacrificing too much on performance. The lower price of the GameMax makes it an attractive option for those upgrading basic systems or for first-time builders who may not require the advanced features of the more expensive CORSAIR model.

Build Quality

In terms of build quality, the CORSAIR RM1000e is designed to provide a more robust and reliable performance. It features 105°C-rated capacitors which ensure steady and dependable electrical performance, a crucial element for high-performance systems. On the other hand, the GameMax 750W Rampage utilises a Japanese TK main capacitor, which also promises reliability and quality assurance. While both power supplies aim to deliver longevity and stability, the higher specifications of the CORSAIR suggest it may appeal more to users who demand top-tier performance and durability in their builds.

Modular Design

The CORSAIR RM1000e offers a fully modular design, allowing users to connect only the cables necessary for their specific system configuration. This feature not only simplifies the installation process but also helps in maintaining a clean and organised interior of the PC case. In contrast, the GameMax 750W Rampage comes with a semi-modular design. While this is still an improvement over non-modular options, it may not provide the same level of flexibility as the fully modular system of the CORSAIR. Users who prioritise a neat setup and ease of cable management might find the CORSAIR's fully modular design particularly advantageous.

Efficiency Ratings

Efficiency is another critical factor in power supply performance. The CORSAIR RM1000e is Intel ATX 3.1 certified and supports PCIe 5.1, ensuring compatibility with advanced graphics cards and better handling of transient power excursions. While the GameMax 750W Rampage has an 80 Plus Bronze certification, achieving efficiency of up to 88% at a load of 50%, it does not match the high standards set by the CORSAIR. For users looking to maximise their energy efficiency and performance, the CORSAIR's superior efficiency ratings make it a more compelling choice.

Cooling Solutions

Cooling capabilities differ significantly between the two power supplies. The CORSAIR RM1000e utilises a 120mm rifle bearing fan that has been engineered for low noise operation, even under full load. This is an important consideration for gamers and professionals who require a quiet working environment. Conversely, the GameMax 750W Rampage features a larger 14cm cooling fan that also ensures effective cooling while maintaining silence. While both models aim to keep temperatures down, the CORSAIR’s specialised fan curve may provide more consistent performance under high-stress conditions, enhancing its appeal for demanding applications.

Compatibility

In terms of compatibility, the CORSAIR RM1000e shines with its ATX 3.1 certification, making it compatible with the latest components, including PCIe 5.1 graphics cards. This is particularly beneficial for those looking to build a future-proof gaming rig or workstation. The GameMax 750W Rampage is designed with a single 12V rail, which offers high compatibility and current output for various components. However, its lack of the latest ATX certification may limit its appeal for users intending to utilise cutting-edge hardware.

User Experience

User experience can heavily influence the choice between the two power supplies. The CORSAIR RM1000e is designed for ease of use with its fully modular setup and quiet operation, catering to enthusiasts who appreciate a smooth installation and a tranquil system. The GameMax 750W Rampage, while more entry-level, also provides a user-friendly experience with its semi-modular design and effective cooling solutions. However, it may lack some of the advanced features that seasoned builders might expect. Therefore, the choice may come down to whether the user values high-end features or a straightforward, budget-friendly option.

Which should you buy?

Ultimately, the decision between the CORSAIR RM1000e and the GameMax 750W Rampage Power Supply hinges on your specific needs and budget. If you're looking for a high-quality, fully modular PSU with superior efficiency, cooling, and compatibility with the latest hardware, the CORSAIR RM1000e is worth the investment at £149.88. However, if you're on a tighter budget or building a more basic system, the GameMax 750W Rampage offers solid performance for its price of £45.80, making it a sensible choice for casual users and first-time builders. Each power supply has its strengths, so consider your requirements carefully before making a choice.

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CORSAIR RM1000e vs GameMax 750W Rampage Power Supply | versusfinder