SAMA Black 850W Power Supply - Fully Modular 80 Plus Gold Certified ATX 3.1 & PC vs SAMA B850 850W ATX Power Supply
Updated August 2026 — The SAMA Black 850W Power Supply offers superior efficiency, modularity, and cooling performance, making it the better choice for high-performance builds. The SAMA B850 is a solid budget option but lacks some advanced features.
The SAMA Black 850W Power Supply offers superior efficiency, modularity, and cooling performance, making it the better choice for high-performance builds. The SAMA B850 is a solid budget option but lacks some advanced features.
Why SAMA Black 850W Power Supply - Fully Modular 80 Plus Gold Certified ATX 3.1 & PC is better
Efficiency
SAMA Black has 80 PLUS Gold certification.
Modularity
SAMA Black features a fully modular design.
Warranty
SAMA Black offers a 5-year warranty.
Why SAMA B850 850W ATX Power Supply is better
Price
SAMA B850 is priced lower at C$74.99.
Basic Compatibility
Both support ATX 3.1 and PCIe 5.1.
Cooling
SAMA B850 has a quiet fan operation.
Overall score
Specifications
| Spec | SAMA Black 850W Power Supply - Fully Modular 80 Plus Gold Certified ATX 3.1 & PC | SAMA B850 850W ATX Power Supply |
|---|---|---|
| Brand | SAMA | SAMA |
| Power | 850W | 850W |
| Certification | 80 PLUS Gold | 80 PLUS Bronze |
| Fan Type | ECO Fan | Temperature Controlled |
| Cable Management | Fully Modular | Non-Modular |
Dimension comparison
Price Comparison
When it comes to pricing, the SAMA B850 850W ATX Power Supply is the more affordable option at C$74.99, compared to the SAMA Black 850W Power Supply, which is priced at C$89.99. This represents a difference of C$15.00, making the B850 a compelling choice for budget-conscious consumers seeking a reliable power supply. While the SAMA Black offers advanced features and higher certification, the B850 still provides solid performance for users who may not require the latest specifications.
Design and Build Quality
In terms of design and build quality, both power supplies share a sleek appearance with black flat cables that enhance cable management and airflow. However, the SAMA Black distinguishes itself with a fully modular design, allowing users to connect only the cables necessary for their build. This feature not only keeps the interior of the case tidy but also optimises airflow, which is vital for maintaining system temperatures under load. The B850, while offering easy cable management, lacks the fully modular aspect, making the SAMA Black a preferable choice for users prioritising aesthetics and airflow efficiency.
Compatibility
Compatibility is a significant factor when choosing a power supply, and both models cater to modern requirements. The SAMA Black is designed for ATX 3.1 and includes PCIe 5.1 ports, ensuring compatibility with high-end GPUs like the RTX 3090 Ti and RTX 40 series. In contrast, the SAMA B850 also supports ATX 3.1 and PCIe 5.1, allowing it to work seamlessly with top-tier graphics cards. While both options support the latest technology, the SAMA Black's inclusion of advanced features makes it slightly more future-proof, appealing to users who plan on upgrading their systems frequently.
Efficiency Ratings
Efficiency is another critical area where these products differ. The SAMA Black boasts an 80 PLUS Gold certification, achieving up to 91.15% efficiency at 50% load. This certification indicates a higher level of energy efficiency, which translates to lower electricity bills and less heat output, contributing to longer component lifespan. On the other hand, the SAMA B850 holds an 80 PLUS Bronze certification, offering over 85% efficiency at typical loads. While both power supplies are efficient, the SAMA Black’s superior Gold rating makes it the better choice for users looking to maximise energy savings.
Cooling Performance
Cooling performance is essential for maintaining system stability and longevity, and both models incorporate features to ensure quiet operation. The SAMA Black is equipped with a 120mm ECO fan featuring Fluid Dynamic Bearing (FDB) technology, which operates at noise levels as low as ≤20dB-A, ensuring a virtually silent experience even under heavy loads. Conversely, the SAMA B850 utilises a temperature-controlled fan that also prioritises quiet operation. While both units are designed for minimal noise, the SAMA Black’s advanced fan technology positions it as the superior choice for users who value silence in their builds.
Warranty and Reliability
When investing in a power supply, warranty length and component reliability are key factors. The SAMA Black offers a robust 5-year warranty, reflecting the manufacturer's confidence in its durability and long-term performance. It is built with premium Japanese capacitors, ensuring stable power delivery. In contrast, the SAMA B850 comes with a 3-year warranty and includes various protections such as OVP, OCP, OPP, and SCP. While the B850 is still a reliable option, the extended warranty and high-quality components of the SAMA Black provide added peace of mind for users who demand more from their power supply.
User Experience
User experience can be significantly influenced by features and overall performance. The SAMA Black's fully modular design, high efficiency, and silent operation contribute to a more rewarding user experience, especially for gamers and power users who require peak performance. Meanwhile, the SAMA B850, while still a competent power supply, may not meet the same level of user satisfaction due to its lack of modularity and lower efficiency rating. Ultimately, the SAMA Black is likely to provide a more enjoyable and hassle-free experience for those who prioritise performance and aesthetics.
Which should you buy?
In conclusion, the choice between the SAMA Black 850W Power Supply and the SAMA B850 850W ATX Power Supply hinges on your specific needs and budget. If you are looking for superior efficiency, a fully modular design, and advanced cooling technology, the SAMA Black at C$89.99 is the ideal option. However, if you are more price-sensitive and still want a power supply that supports modern components, the SAMA B850 at C$74.99 offers great value. Ultimately, your decision should align with your performance requirements and financial considerations.
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