SAMA White 650W Power Supply - Fully Modular 80 vs Segotep 650W 80 Plus Gold Certified Non-Modular
Updated August 2026 — SAMA White 650W Power Supply - Fully Modular 80 leads on modularity and noise level.
The SAMA White 650W Power Supply offers superior efficiency and modularity, making it a better choice for high-performance builds. The Segotep 650W is a solid budget option but lacks advanced features.
Why SAMA White 650W Power Supply - Fully Modular 80 is better
Modularity
SAMA's fully modular design allows for better cable management.
Efficiency
SAMA achieves 91.15% efficiency at 50% load.
Warranty
SAMA offers a 5-year warranty for added reliability.
Why Segotep 650W 80 Plus Gold Certified Non-Modular is better
Price
Segotep is $13 cheaper than SAMA.
Simplicity
Segotep's non-modular design may appeal to some users.
Global Use
Segotep features global voltage adaptation.
Overall score
Specifications
| Spec | SAMA White 650W Power Supply - Fully Modular 80 | Segotep 650W 80 Plus Gold Certified Non-Modular |
|---|---|---|
| Power Output | 650W | 650W |
| Certification | 80 PLUS Gold | 80 PLUS Gold |
| Fan Size | 120mm | 120mm |
| Connector Type | Fully Modular | Non-Modular |
| Compatibility | ATX 3.1 & PCIe 5.1 | Standard |
Dimension comparison
Overview of SAMA White 650W Power Supply
The SAMA White 650W Power Supply is a fully modular option that stands out due to its ATX 3.1 and PCIe 5.1 compatibility. Priced at $62.99, it offers a significant set of features aimed at high-performance users, especially those utilizing the latest GPUs like the RTX 30 and 40 series. With dual 80 PLUS Gold and CYBENETICS certifications, it promises up to 91.15% efficiency at 50% load, which can be a crucial factor for energy-conscious consumers.
Overview of Segotep 650W Power Supply
The Segotep 650W Power Supply, on the other hand, is priced lower at $49.99, making it about 17% cheaper than the SAMA model. While it lacks the modular design of the SAMA, it still boasts an impressive 80+ Gold certification, ensuring high efficiency. This power supply features a non-modular design, which some users may prefer for simplicity, but it may lead to increased cable clutter inside the case.
Design and Build Quality
When it comes to design, the SAMA White 650W Power Supply excels with its fully modular setup, allowing users to connect only the cables they need. This feature not only helps in maintaining a clean build but also improves airflow for better cooling performance. The use of flat cables further enhances cable management, which is essential for high-performance systems.
In contrast, the Segotep 650W Power Supply has a non-modular design. While this may encourage a simpler installation process, it could lead to a messier interior, potentially affecting airflow and cooling. However, the Segotep does feature a robust build quality and a silent 120mm fan, which can effectively manage heat, albeit without the customizable cable management of the SAMA.
Efficiency Ratings
Efficiency is a crucial factor in any power supply, and both the SAMA and Segotep models are 80 PLUS Gold certified. The SAMA White offers a maximum efficiency of 91.15% at 50% load, helping to reduce energy consumption and heat output significantly. This can lead to lower electricity bills over time and contribute to a more stable system.
The Segotep 650W, while also 80 PLUS Gold certified, does not specify efficiency percentages in the provided data. However, it is designed for reliable performance under demanding conditions, with a single 12V output that ensures stable power delivery. Both supplies are intended to provide efficient operation, but the SAMA’s specific efficiency figures give it an edge in this category.
Compatibility and Performance
The SAMA White Power Supply is built to support the latest high-end GPUs, including the RTX 3090 Ti and RTX 40 series, thanks to its ATX 3.1 and PCIe 5.1 compatibility. This makes it an ideal choice for gamers and content creators who need top-tier performance. Additionally, the SAMA’s fully modular design enhances compatibility with various setups, allowing users to optimize their builds according to specific needs.
The Segotep 650W Power Supply, while lacking the latest compatibility features, still supports a variety of systems with its four PCI-E 6+2 Pin connectors. This makes it a viable choice for mid-range setups and users who may not require the highest-end GPUs. Although it may not perform at the same level as the SAMA with cutting-edge technology, it still provides reliable power for standard gaming and workstation needs.
Noise Levels
Noise levels can significantly impact the user experience, particularly for gamers and professionals who value a quiet environment. The SAMA White Power Supply is equipped with a 120mm ECO fan that operates at noise levels as low as ≤20dB-A. This ensures that even under heavy loads, the power supply remains relatively quiet, contributing to a more pleasant overall experience.
In comparison, the Segotep 650W also features a silent 120mm fan, but specific noise level metrics are not provided. While it aims to maintain quiet operation, the absence of quantifiable data makes it challenging to assess its performance against the SAMA. Users prioritizing noise levels may find the SAMA to be the better option based on its stated performance.
Warranty and Reliability
Reliability in power supplies often correlates with the quality of components used, and the SAMA White Power Supply is built with premium Japanese capacitors, enhancing its stability and longevity. It also comes with a 5-year warranty, which provides added peace of mind for users investing in a high-performance machine.
The Segotep 650W Power Supply, while not specifying the same quality of capacitors, does offer PFC protection and RoHS compliance, indicating a commitment to quality and safety. However, it lacks the extended warranty period of the SAMA, which could affect buyer confidence in the long-term reliability of the product.
Which should you buy?
Deciding between the SAMA White 650W Power Supply and the Segotep 650W Power Supply ultimately hinges on your specific needs and budget. The SAMA is ideal for users seeking high efficiency, modularity, and compatibility with the latest GPUs, making it worth the extra $13.00 for those who need top-tier performance. However, if you’re on a budget and require a straightforward, reliable power supply for a mid-range system, the Segotep offers solid performance at a lower price.

