CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U vs Raspberry Pi 27W USB-C Power Supply - Black
Updated August 2026 — The CORSAIR CX650 is the superior choice for high-performance needs, while the Raspberry Pi 27W USB-C Power Supply is ideal for budget-conscious users.
The CORSAIR CX650 is the superior choice for high-performance needs, while the Raspberry Pi 27W USB-C Power Supply is ideal for budget-conscious users.
Why CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U is better
Power Output
CORSAIR delivers 650 Watts compared to Raspberry Pi's 27 Watts.
Efficiency
CORSAIR has 80 PLUS Bronze certification for up to 88% efficiency.
Cooling Solutions
CORSAIR features a low-noise cooling fan for better thermal management.
Why Raspberry Pi 27W USB-C Power Supply - Black is better
Price
Raspberry Pi is significantly cheaper at £14.87.
Size
Raspberry Pi is compact and easy to use for low-power devices.
Simplicity
Raspberry Pi is designed for straightforward use with USB-C.
Overall score
Specifications
| Spec | CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U | Raspberry Pi 27W USB-C Power Supply - Black |
|---|---|---|
| Brand | Corsair | Raspberry Pi |
| Cooling Fan | Yes | No |
| Connector Type | ATX | USB-C |
| Modular | Non-Modular | N/A |
| Input Voltage | 100-240VAC | 100-240VAC |
Dimension comparison
Price Comparison
When comparing the prices of the CORSAIR CX650 and the Raspberry Pi 27W USB-C Power Supply, there is a significant difference. The CORSAIR CX650 is priced at £44.99, whereas the Raspberry Pi 27W USB-C Power Supply is considerably more affordable at £14.87. This indicates that for budget-conscious consumers, the Raspberry Pi power supply presents a far more accessible option. However, the price difference reflects the capabilities and intended use of each product, as the more expensive CORSAIR power supply is designed for higher-performance computing setups.
Power Output
The power output is a crucial factor when evaluating these two power supplies. The CORSAIR CX650 delivers a full continuous power of 650 Watts, making it suitable for high-performance PCs that demand more energy for graphics cards and processors. In contrast, the Raspberry Pi 27W USB-C Power Supply provides an output of up to 27 Watts, which is sufficient for powering Raspberry Pi devices and similar low-power gadgets. This substantial difference in output power means that the CORSAIR is geared towards more demanding applications, while the Raspberry Pi supply is designed for lightweight use.
Efficiency Ratings
Efficiency is another essential aspect to consider. The CORSAIR CX650 holds an 80 PLUS Bronze certification, which signifies an operational efficiency of up to 88%. This efficiency not only reduces energy consumption but also lowers heat generation, contributing to a quieter operating environment. On the other hand, the Raspberry Pi 27W Power Supply does not specify an efficiency rating, which may imply that it is not optimised for energy efficiency to the same extent as the CORSAIR. Therefore, the CORSAIR appears to be the better option for those looking for a power supply that combines performance with energy savings.
Design and Build Quality
In terms of design and build quality, the CORSAIR CX650 is crafted with a low-noise cooling fan that operates quietly, only ramping up under heavy loads. This feature is particularly beneficial for users who prefer a silent computing experience. The power supply also boasts a compact casing measuring 125mm in length, enabling an easy fit in nearly all modern PC cases. Conversely, the Raspberry Pi 27W USB-C Power Supply is designed with practicality in mind, featuring a 1.2m cable and a robust USB-C connector. While both products have their strengths in build quality, the CORSAIR offers a more sophisticated design tailored for PC builders, while the Raspberry Pi supply focuses on convenience for casual users.
Intended Usage
The intended usage of these two power supplies significantly differs. The CORSAIR CX650 is aimed at users building or upgrading desktop PCs that require substantial power for gaming, video editing, or other intensive tasks. Its high wattage and efficiency make it an ideal choice for these applications. In contrast, the Raspberry Pi 27W USB-C Power Supply is specifically engineered for powering Raspberry Pi devices and other low-power electronics. This makes it an excellent option for hobbyists and developers working on smaller projects or educational tools. Thus, the choice between the two largely hinges on the specific power requirements of your devices.
Cooling Solutions
Cooling solutions are a vital component in maintaining the longevity of power supplies. The CORSAIR CX650 features a 120mm thermally controlled fan which optimises cooling by adjusting its speed according to the load. This not only helps in maintaining an efficient operating temperature but also ensures a quieter operation during lower loads. In contrast, the Raspberry Pi 27W USB-C Power Supply does not include a cooling fan, as it is designed for low-power applications that do not generate significant heat. Therefore, if cooling performance is a major consideration for your setup, the CORSAIR is clearly the superior choice.
Brand Reputation
Brand reputation plays a significant role in the decision-making process for many consumers. Corsair is known for producing high-quality components, particularly in the gaming and PC building communities. Their products, including the CX650, often receive praise for reliability and performance. On the other hand, Raspberry Pi is renowned for its innovative contributions to affordable computing, particularly in education and hobbyist projects. Both brands have established strong reputations in their respective fields, making either choice a safe one depending on the intended application.
Which should you buy?
In conclusion, the decision between the CORSAIR CX650 and the Raspberry Pi 27W USB-C Power Supply ultimately depends on your specific needs. If you require a robust power supply for a high-performance PC build, the CORSAIR CX650 is the clear winner with its 650 Watts of power, 80 PLUS Bronze efficiency, and superior cooling solutions, despite its higher price of £44.99. However, if you are looking for an economical power solution for low-power devices like a Raspberry Pi, the Raspberry Pi 27W USB-C Power Supply is an excellent choice at just £14.87. Each product serves its purpose well, making your choice dependent on the applications you intend to support.
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