CORSAIR RM750e vs CORSAIR RM650e
Updated August 2026 — The CORSAIR RM750e offers higher power output for demanding systems at a slightly higher price, while the RM650e provides excellent value with similar features for general use.
The CORSAIR RM750e offers higher power output for demanding systems at a slightly higher price, while the RM650e provides excellent value with similar features for general use.
Why CORSAIR RM750e is better
Power Output
750W vs 650W
Cooling Fan
Rifle bearing fan vs articular bearing fan
Price-Performance
Higher wattage for small price difference
Why CORSAIR RM650e is better
Price
£79.99 vs £81.99
Product Description
More detailed description and included cables
Noise Focus
Emphasis on low noise with articular bearing fan
Overall score
Specifications
| Spec | CORSAIR RM750e | CORSAIR RM650e |
|---|---|---|
| Wattage | 750W | 650W |
| Price | £81.99 | £79.99 |
| Fan Type | Rifle bearing | Articular bearing |
| Certification | Intel ATX 3.1 | Intel ATX 3.1 |
| Capacitors | 105°C rated | 105°C rated |
| Modular | Fully modular | Fully modular |
| Warranty | 7 years | 7 years |
Dimension comparison
Price Comparison
The CORSAIR RM750e is priced at £81.99, while the CORSAIR RM650e is slightly more affordable at £79.99. This £2 difference may seem minor, but it positions the RM650e as a budget-friendly option for users seeking reliable power supplies without breaking the bank. Both products offer a range of features, but the price may influence buyers who are keen to optimise their spending without sacrificing quality.
Power Output
In terms of power output, the CORSAIR RM750e provides a significant advantage with its 750 watts, compared to the 650 watts offered by the RM650e. This additional power can be crucial for high-performance systems, particularly those with demanding components such as high-end GPUs. Users looking to build or upgrade their PCs for gaming or intensive tasks may find the extra 100 watts beneficial for stability during peak loads.
Efficiency Ratings
Both power supplies boast a high level of efficiency, adhering to the Intel ATX 3.1 standard. This certification ensures that they can effectively handle the power demands of modern systems. However, the specifics of their efficiency ratings are not detailed in the provided data. It is worth noting that both models are designed to provide reliable performance with 105°C-rated capacitors, which contribute to their efficiency and longevity.
Cooling Solutions
Cooling is a critical factor in power supply performance, and both the CORSAIR RM750e and RM650e are equipped with 120mm fans designed to keep noise levels low. The RM750e features a rifle bearing fan, while the RM650e utilises an articular bearing fan. While both designs focus on noise reduction, the choice of bearing may influence durability and performance over time. Both models maintain low noise even under full load, which is beneficial for users aiming for a quieter PC experience.
Modular Design
Both the CORSAIR RM750e and RM650e come with a fully modular design, allowing users to connect only the cables they need for their build. This feature aids in cable management and airflow within the case. With fully modular cabling, users can achieve a cleaner and more efficient setup, which is a significant advantage for those who prioritise aesthetics and performance in their builds.
Compatibility and Connectivity
The compatibility of both models with modern hardware is a strong point. They both support the ATX 3.1 power standard and the PCIe 5.1 platform, ensuring that they can accommodate the latest components. Additionally, both power supplies include specific connectors like the 12V-2x6 connector and various PCIe 8-pin power connectors, making them versatile options for a range of builds. This compatibility is essential for users who want to future-proof their systems.
Warranty and Reliability
Warranty is an important consideration when investing in a power supply. Both the CORSAIR RM750e and RM650e come with a seven-year warranty, which speaks to their reliability and the manufacturer's confidence in their products. This long warranty period provides peace of mind for users, ensuring that they are covered in the event of any defects or issues that may arise during regular use.
Which should you buy?
When deciding between the CORSAIR RM750e and the CORSAIR RM650e, consider your specific needs. If you require higher power output for more demanding applications or future upgrades, the RM750e is the better choice, albeit at a slightly higher price of £81.99. However, if you are looking to save a bit while still obtaining a quality product for general use, the RM650e at £79.99 offers excellent value without compromising on essential features. Both models are reliable, efficient, and well-suited for modern PC builds, making either a solid investment depending on your power requirements.
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