JUSTOP Black 750W PSU vs SAMA G850 Power Supply - 850W Fully Modular 80 Plus Gold Certified ATX 3.1 & PCI

Overview of Power Supplies

In the realm of power supplies, the JUSTOP Black 750W PSU and the SAMA G850 Power Supply stand out as two compelling options. The JUSTOP is priced at £32.95, while the SAMA comes in at a higher cost of £84.99. This price difference reflects the various features and capabilities of each product, which cater to different user needs and preferences.

Power Output and Efficiency

The primary distinction between the two units is their power output. The JUSTOP Black offers a solid 750W, which is sufficient for many standard desktop setups. In contrast, the SAMA G850 provides a robust 850W, making it ideal for high-performance gaming rigs or workstations that require more power, especially for demanding components like the latest NVIDIA GeForce RTX 50 and 40 series GPUs. Additionally, the SAMA is certified with an 80 Plus Gold rating, achieving an impressive efficiency of up to 91.15% at typical loads, which translates to lower energy waste and reduced heat generation compared to the JUSTOP.

Build Quality and Design

When it comes to build quality, the SAMA G850 clearly has the upper hand. Its fully modular design allows users to only connect the cables they need, resulting in cleaner builds and improved airflow. This is particularly beneficial for high-end gaming systems where aesthetics and cable management are crucial. The SAMA also features premium Japanese capacitors, which contribute to its reliability and longevity. The JUSTOP Black PSU, while functional, lacks these premium features and is not fully modular, which may lead to a more cluttered interior in comparison.

Cooling Solutions

Cooling is an essential aspect of power supplies, and both models come equipped with fans to maintain optimal temperatures. The JUSTOP features a 120mm cooling fan, while the SAMA boasts a larger and quieter 140mm Fluid Dynamic Bearing (FDB) fan. The FDB fan design in the SAMA not only ensures silent operation but also enhances the lifespan of the unit by reducing vibration. The larger fan size allows for better airflow and cooling efficiency, making the SAMA a superior choice for users who value silence and performance during intense gaming sessions or demanding workloads.

Safety Features

Safety is paramount in power supply design, and both the JUSTOP and SAMA models include multiple protection features. The JUSTOP Black offers over voltage protection, over power protection, short circuit protection, and thermal overload cut-off protection. These features ensure stable and safe operation for your components. The SAMA G850, however, takes safety a step further with complete protections against over voltage, over current, over temperature, over power, short circuit, under voltage, and surge protection. This comprehensive safety suite provides additional peace of mind for users who may be concerned about potential electrical issues.

Compatibility and Connectivity

Both power supplies offer a variety of connectors for compatibility with different components. The JUSTOP Black comes with essential connectors, including one 24-pin (20+4) connector, one 8-pin 12V (4+4), six SATA, one 4-pin Molex, and one 8-pin PCI-E (6+2). This setup is adequate for most standard builds. On the other hand, the SAMA G850 not only supports these connectors but also includes a native 12V-2x6 connector, which is specifically designed for the latest graphics cards, ensuring compatibility with cutting-edge hardware. This makes the SAMA a more future-proof choice for users looking to upgrade their systems.

Price-to-Performance Ratio

In terms of price-to-performance ratio, the JUSTOP Black PSU is an attractive option for budget-conscious consumers who require reliable power for basic systems. At just £32.95, it offers solid performance for everyday computing tasks. However, the SAMA G850, priced at £84.99, justifies its higher cost through its advanced features, efficiency, and versatility, especially for high-performance gaming and workstation builds. Users must weigh whether the additional investment in the SAMA provides the value they need for their specific use case.

Which should you buy?

In conclusion, the choice between the JUSTOP Black 750W PSU and the SAMA G850 Power Supply ultimately depends on your specific requirements and budget. If you need a reliable power supply for a standard desktop setup and are looking to save money, the JUSTOP is an excellent choice. However, for those requiring higher power output, superior efficiency, quieter operation, and enhanced safety features, the SAMA G850 is the clear winner. Its fully modular design and compatibility with the latest hardware make it a more future-proof investment for serious gamers and professionals alike.