JUSTOP Black 650W PSU vs be quiet! Pure Power 13 M 1000W Power Supply

Price Comparison

The JUSTOP Black 650W PSU is priced at £29.99, significantly lower than the be quiet! Pure Power 13 M 1000W Power Supply, which costs £99.99. This difference of £70 is substantial and could be a deciding factor for budget-conscious consumers. The lower price of the JUSTOP model makes it an attractive option for those who need a basic power supply without the need for extensive features. On the other hand, the be quiet! model, although pricier, offers features that may justify its cost for users looking for high efficiency and advanced capabilities.

Power Output

In terms of power output, the be quiet! Pure Power 13 M delivers a robust 1000W, while the JUSTOP Black provides 650W. This 350W difference means that the be quiet! model can support more demanding systems, particularly those with high-performance graphics cards and processors. The higher wattage of the be quiet! PSU also allows for better handling of power excursions, ensuring reliability under heavy loads. For users who plan to run high-end gaming setups or intensive applications, the be quiet! model is clearly the superior choice due to its greater power capacity.

Efficiency Rating

The be quiet! Pure Power 13 M boasts an impressive 80 PLUS Gold certification, achieving an efficiency rating of up to 94.4%. This level of efficiency translates to lower power consumption and reduced electricity costs over time. In contrast, the JUSTOP Black does not specify an efficiency rating, which may suggest that it does not perform as efficiently as its competitor. The be quiet! model’s efficiency not only ensures cost savings but also contributes to quieter operation, making it a better choice for users prioritising performance and energy savings.

Cooling Features

Cooling is a critical feature for power supplies, and both models incorporate effective cooling systems. The JUSTOP Black includes a 120mm cooling fan designed to maintain optimal temperatures during operation. Meanwhile, the be quiet! Pure Power 13 M features a fan that turns off completely under low loads, ensuring silent operation when possible. This innovative feature, combined with the fan’s airflow-optimised design, makes the be quiet! model particularly appealing for users aiming for quiet yet powerful systems. Therefore, while both units offer cooling solutions, the be quiet! PSU has an edge in noise management.

Connector Options

The connectivity options differ significantly between the two power supplies. The JUSTOP Black comes with a variety of connectors, including a 20+4 pin, 4+4 pin, and multiple SATA and Molex connectors, making it versatile for standard desktop configurations. However, the be quiet! Pure Power 13 M goes further by including native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, along with four PCIe 6+2-pin connectors. This extensive range of connections allows for greater flexibility and support for modern gaming rigs, which often require multiple powerful GPUs. Users looking to future-proof their systems will find the be quiet! model more accommodating.

Safety Features

In terms of safety, the JUSTOP Black includes multiple protective measures such as over voltage protection, over power protection, short circuit protection, and thermal overload cut-off protection. These features provide a solid safeguard for users against potential electrical issues. The be quiet! Pure Power 13 M also offers robust safety features, combined with its high efficiency and reliability under load. While both power supplies prioritise safety, the comprehensive design and efficiency of the be quiet! model make it a better option for those who demand not only performance but also peace of mind.

Noise Levels

Noise levels are a significant factor for many consumers, especially those who build quiet systems. The JUSTOP Black does not specify noise levels, which may indicate a standard operation sound. In contrast, the be quiet! Pure Power 13 M is designed to operate silently, with its fan completely turning off under low loads. This makes it an excellent choice for users who want to minimise noise in their systems, particularly during less demanding tasks. The be quiet! model clearly excels in quiet operation, making it ideal for both gaming and media creation setups where noise can be distracting.

Which should you buy?

Choosing between the JUSTOP Black 650W PSU and the be quiet! Pure Power 13 M 1000W Power Supply ultimately depends on your specific needs and budget. If you are looking for a cost-effective solution suitable for basic desktop systems, the JUSTOP model at £29.99 offers decent performance at a low price. However, for those who require higher power output, efficiency, and advanced features, the be quiet! model at £99.99 is the better option. It provides superior power handling, lower noise levels, and enhanced compatibility with modern components. Therefore, if your budget allows and you need a reliable, efficient power supply for demanding applications, the be quiet! Pure Power 13 M is the clear winner.