SAMA Black 850W Power Supply - Fully Modular 80 Plus Gold Certified ATX 3.1 & PC vs 27W PD USB C GaN Power Supply for Raspberry Pi 5 Adapter 5.1V 5A

Overview of the Products

In this comparison, we are looking at the SAMA Black 850W Power Supply and the 27W PD USB C GaN Power Supply for Raspberry Pi. The SAMA power supply is designed for high-performance computing, while the Vemico unit is tailored for specific use with the Raspberry Pi 5. The SAMA power supply is priced at C$89.99, while the Vemico power supply is significantly more affordable at C$21.39.

The SAMA power supply, with its 850W capacity, is ideal for gaming rigs and high-performance PCs, supporting demanding components such as the latest GPUs. Conversely, the Vemico power supply, with its 27W output, is perfect for powering Raspberry Pi devices, making it a budget-friendly option for hobbyists and developers.

Build Quality and Design

The SAMA Black 850W Power Supply boasts a fully modular design that allows for streamlined cable management, which is crucial for maintaining airflow and cooling efficiency in a high-performance build. It features flat cables that can be connected based on the specific needs of the system. In contrast, the 27W GaN Power Supply is compact and designed for portability, measuring just 60mm x 40mm x 26.5mm.

The use of premium Japanese capacitors in the SAMA power supply enhances its reliability and longevity, reflected in its 5-year warranty. Meanwhile, the Vemico unit prioritises safety with built-in features such as over-current protection and short-circuit protection, ensuring that your Raspberry Pi operates safely.

Compatibility

When it comes to compatibility, the SAMA Black 850W Power Supply is designed to meet ATX 3.1 standards and includes native PCIe 5.1 ports, making it suitable for high-end graphics cards like the RTX 3090 Ti and RTX 40 series. This power supply is built for versatility, accommodating advanced gaming and workstation setups.

On the other hand, the 27W GaN Power Supply is specifically compatible with the Raspberry Pi 5, featuring a USB-C interface and multiple output voltages (5.1V/5A, 9V/3A, etc.). This makes it an excellent choice for those specifically looking to power their Raspberry Pi devices. The targeted compatibility of the Vemico unit means it may not be suitable for more demanding computing needs.

Efficiency and Performance

The SAMA power supply is rated with an 80 PLUS Gold certification, achieving up to 91.15% efficiency at 50% load. This high efficiency translates to reduced energy waste and lower heat output, which is essential for maintaining system stability and extending the lifespan of components.

In contrast, while the Vemico 27W GaN Power Supply does not carry an efficiency rating like the SAMA, it is noted for its reliable performance with the Raspberry Pi 5. It offers a maximum output of 5A at 5.1V, which is sufficient for the power requirements of the Raspberry Pi without overloading the device.

Noise Levels

The SAMA power supply features an ECO fan with Fluid Dynamic Bearing (FDB) technology, designed to operate quietly, with noise levels as low as ≤20dB-A. This makes it a suitable choice for users who prefer a silent computing environment, especially in gaming or work setups where noise can be distracting.

The Vemico power supply, being a smaller unit without a traditional fan, operates silently as well. Its compact design also contributes to its portability, making it easy to carry for users who might be setting up their Raspberry Pi in different locations.

Price Point

The SAMA Black 850W Power Supply is priced at C$89.99, which reflects its high capacity, advanced features, and certifications. This price positions it as a premium product suitable for serious gamers and professionals who require robust power delivery for demanding hardware.

In stark contrast, the Vemico 27W GaN Power Supply is priced at just C$21.39, making it an excellent budget option for casual users and enthusiasts looking to power their Raspberry Pi. The significant difference in price highlights the different target markets for each product, with the SAMA aimed at high-performance users and the Vemico appealing to budget-conscious Raspberry Pi fans.

Use Cases

The SAMA Black 850W Power Supply is ideal for users building high-end gaming rigs or powerful workstations that require a reliable and efficient power source. Its compatibility with the latest graphics cards and its modular design make it suitable for custom builds where performance is a priority.

On the other hand, the 27W PD USB C GaN Power Supply is specifically designed for the Raspberry Pi 5, making it perfect for hobbyists, developers, or anyone needing a dedicated power supply for their Raspberry Pi projects. Its compact size and affordability make it a practical choice for users who do not need the extensive capabilities of a high-wattage power supply.

Which should you buy?

Choosing between the SAMA Black 850W Power Supply and the 27W PD USB C GaN Power Supply ultimately depends on your specific needs. If you are looking for a high-performance power supply for a gaming rig or workstation, the SAMA is the clear choice, offering advanced features and robust compatibility with high-end components. However, if you are a Raspberry Pi enthusiast seeking an affordable and portable solution, the Vemico power supply is an excellent option, providing reliable power without breaking the bank.